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Download "Demystifying Wi-Fi: Site Surveys Made Simple | Ekahau Webinar"

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Video tags

wi-fi site survey
wifi survey
ekahau site survey
how to survey with ekahau
ekahau sidekick site survey
pre-deployment wi-fi site survey
how to interpret site survey data
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Subtitles

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00:00:01
handling the housekeeping for us and a
00:00:03
very warm welcome to everybody joining
00:00:05
us on our webinar series today like stu
00:00:08
said we are continuing on our
00:00:09
demystifying wi-fi series and on this
00:00:12
episode we are specifically focusing on
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how we perform wi-fi site surveys so
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let's jump straight into it first off a
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quick introduction of who we are so
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you've got myself and mac uh with the
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directors of product marketing and ecse
00:00:27
over here at eckaha and we've got the
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fabulous stew who's just done the
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amazing housekeeping he's going to be
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keeping on the q a
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feature so any questions that you really
00:00:35
want to ask us during the webinar today
00:00:37
please use that functionality and if you
00:00:39
see a question there that you really
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like the lookup that we haven't got
00:00:41
around to use the upvote feature because
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that that means there's going to be a
00:00:45
more of a chance that we'll get around
00:00:47
to that question during the webinar
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so if this is your first webinar that
00:00:51
you're joining us with and you don't
00:00:52
know what we're talking about when we
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say this is our demystifying wi-fi
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series uh what do we mean by that and we
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means that this is the fourth episode of
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us trying to demystify wi-fi so if you
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haven't seen the previous episodes the
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webinars we've done we've got blogs
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we've got videos and a webinar on each
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of these categories and you can access
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them over at our website at ekahal.com
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so if you confuse around you know what
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is coverage planning or how you do
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capacity planning or planning for the
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wi-fi channels you can go and check how
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any one of these episodes to help
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demystify that part of wi-fi
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and the agenda for today's webinar is
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fairly simple first we'll start with
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what is a site survey and site survey my
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friends is a visit to the site where you
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take measurements of something in
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wi-fi these measurements are 802.11
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modulated things captured by our wi-fi
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cards and spectrum analysis captured by
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a surprise spectrum analyzer both built
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into our amazing sidekick like a
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hardware sidekick not a stu sidekick
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then we'll talk about the different
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types of wi-fi site survey collection
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modes
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and finally we'll talk about our tips
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for performing perfect quality site
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surveys
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and the
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whole webinar really you know focuses on
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the three easiest how we want to get to
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three easy steps to great wi-fi every
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day and the wi-fi site surveys fits into
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every single one of those categories so
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into step one when you're validating
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your design and you go into your site
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you want to take your
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trusted echo house sidekick and you can
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go and take the measurements of you know
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the attenuation your how much how far
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your access points cover the channel
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contention what's going on in your
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environment so you can go back and
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validate that your design meets what you
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were anticipating it to do when you
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actually get on site
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you can use your sidekick for that as
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well as in step two also with step three
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when you're performing regular health
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check surveys you want to be using your
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echo site keep performing the different
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types of surveys and depending on where
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you are or how you refer to the wi-fi
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surveys people will record you know have
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one name for how you do a predictive
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model or if you do a predictive design
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or if you're going on a site are you
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doing a pre-deployment survey or someone
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just says to you hey mac or hey stu can
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you come on site and do a wi-fi survey
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for me and you're like sure but what
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kind of survey is it that you want me to
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do is it a validation survey is it an
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assessment survey is it a pre-deployment
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survey so we're going to try and put
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some clarity around the different types
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of surveys that you do in the different
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aspects of the wi-fi life cycle and
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within our three easy steps to great
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wi-fi every day
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and this is the inside look at our
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amazing sidekick and every time i say or
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matt says amazing sidekick again sees
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you smiling there so i'm not sure if you
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guys seen it before this is how it looks
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inside we have
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seven on the directional antennas which
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means that doesn't matter pretty much
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how you hold your sidekick it will be
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omnidirectional it will capture the
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electromagnetic waves from all the sides
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and also it has a spectrum analyzer and
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two
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great quality wi-fi cards additionally
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we have a hard drive in it where hard
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drive ssd
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and proper battery with
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they say eight hours battery life but
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actually
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i've never had less than eight hour
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battery life typically it's more
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so what are these different types of
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wi-fi surveys that we are referring to
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then so if we take a look at our three
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easy steps are broken down in maybe like
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a slightly different way and we take a
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look at the step one and that's the
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design element of the of the three steps
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so that first part is the wi-fi design
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survey now this is when you are going to
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be wanting to go on site to collect the
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rf and the environment details so this
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is when you want to go on site find out
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if they've got any interferers look at
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where you can and can't mount access
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points um you know really start to get
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an understanding of how the environment
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is so then you can go back to your
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predicted model inside of echo how
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and then update your design so you you
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go there with your sidekick you gather
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that information you look at how busy
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the environment is how many noisy
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neighbors there are and find out you
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know maybe there's some channels that
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you want to avoid because everyone's
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just using let's say the non-dfs
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channels on five gigahertz so you think
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oh okay they're really highly uh
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contentious so i want to maybe use the
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the non-dfs
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yeah the uni-2 extended band so i can
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avoid some of that channel contention
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and you want to go back get all of that
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information so you can then go back
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update your design
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then moving on to step two mac
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and step two actually when matt says
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step one
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sometimes you will start in a different
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order so you might be asked to go to the
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site and do a troubleshooting survey
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which is step three without designing
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the network in the first place or
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sometimes you will start with a
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predictive design
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and then you will go to the site to
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validate your predictive design with
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wi-fi design survey both part of step
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one and as part of a validation step two
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we have two different types of surveys
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available for us first one is a
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pre-deployment survey this is the type
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of survey that you typically do in more
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in more challenging environments like
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warehouses or industrial
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difficult to predict open spaces that's
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where you use ap on a stick where after
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placing an access point somewhere it's
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very difficult to come back and change
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its location for
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different reasons like maybe you have
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access to the ceiling today in a
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warehouse
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then you place an access point
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and
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on the following week you will have
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massive racks
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installed pretty much in front of that
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ap and you won't have access to that
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anymore so before you do that for 200
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aps for example you need to make sure
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that it's absolutely spotless and that
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your design is really going to work in a
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real world that's why ap on stick is
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crucial in challenging environments not
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necessarily in carpeted office spaces
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typical ones with just like a wind lift
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shafts and toilets concrete core in the
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center and open spaces around in this
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spaces it is typically enough to do a
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wi-fi design survey followed by a wi-fi
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design without doing ap honesty
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additionally when you do ap on a stick
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survey it doesn't mean that you have to
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do a mini survey around ap on stick by
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the way we will talk about the ap on a
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stick in more detail
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later on it means that you have to just
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do it enough times for you to fully
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understand the propagation of
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radio waves around you so you validate
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your design so that's pre-deployment
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survey and then you do your deployment
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all the access points and fancy antennas
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they are placed
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mounted tilted directed
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exactly as you said they should be in
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your fancy predictive design
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then you do a post validation survey and
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you do a post validation survey
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at least few days after the deployment
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was finished because you want to make
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sure that your irm algorithms radio
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resource management algorithms different
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vendors will call it by different names
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but
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channels allocation transmitting power
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level they will need time for the vendor
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to settle on
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optimal settings that's why you don't do
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post deployment survey on the same day
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as your deployment there's few more
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i think very good tips for post
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deployment service that we have for you
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here when you do a post deployment
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survey that validates that everything
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that you that you sculpt as part of your
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design is really working as it should in
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the real world
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frees that channels and transmitting
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power levels before you start doing the
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survey it's very very frequent that some
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channels change
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while you are walking around
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transmitting power levels change while
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you are walking around and then you end
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up having
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access points with the radios
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transmitting on four different channels
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on five gigahertz and then you scratch
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your head thinking
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what the hell happened so freeze that
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stuff
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and that's post deployment survey
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and matthew i think we will go back to
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you for step three
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thanks max there there are some really
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good tips to think about them for when
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you are doing your post deployment
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validation survey is letting the rrm
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algorithm settle down and then freezing
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that rm algorithm so that your
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channels and transmit power are not
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constantly changing whilst you're
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performing a validation survey because
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it's if that's happening it's almost
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like the goal posts are moving every
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time you're walking around collecting
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that data because everything's changing
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the channels are changing the transmit
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power changing so the coverage is going
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to look different the channel
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interference is going to look different
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so great tip there
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so if we take a look at step three about
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the health checks elements to our three
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steps to great wi-fi every day we kind
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of broken this down to the periodic
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health survey and the troubleshooting
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assessment survey because like max said
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you may get called in to do a
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a survey because the people are having
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problems and then when you start to
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speak to your stakeholder that's asking
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you to come and do the survey you
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actually find out it's because they're
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having some issues with wi-fi that's
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already been deployed so they want you
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to come and do an assessment of that
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environment
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but one of the
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most
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overlooked surveys i think especially
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when we was doing professional services
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was the periodic health survey now a lot
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of our customers are stakeholders they
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just didn't see the value in this they
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didn't think it would be worth paying
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that additional money for
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but if you do not perform these periodic
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health check surveys there's no way you
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can keep your finger on the pulse of
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your wi-fi network and find out what is
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happening and then fixing those issues
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before they become too apparent and the
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wi-fi goes down and it stops working and
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now you can't run your business because
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you wasn't adaptive and constantly
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checking your environment
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so this is why it's super critical to
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constantly do these periodic health
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check surveys because so much changes in
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wi-fi you could have done your amazing
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design you could have done your perfect
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deployment and validated it and then
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three months later
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they've had physical changes in the
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environment they have more users coming
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in they use the wi-fi in a different way
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they've had
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up firmware updates happen to the
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printers and the tvs and other devices
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around the office and now they're
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creating tons of channel contention
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the environment has changed so you need
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to go there check what's going on and
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then you can be adaptive to make sure
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that you constantly keep a high
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performing wireless network
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and then the troubleshooting assessment
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survey is when you've had a design done
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by someone else and it's been deployed
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and then a few few weeks months years
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later down the line they're trying to
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use the wi-fi and it's just not working
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in the way that they intended it to
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whether it's in a warehouse whether it's
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in an office or a shopping mall and they
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call you to come out and do a an
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assessment survey to find out what's
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going on so this is when you would start
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at step three you would do an assessment
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and you would see you know what this
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design was done five years ago for
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providing basic wi-fi connectivity but
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the way that you're trying to use the
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wi-fi today is you want to run voice and
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video calls and run your business over
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to wi-fi whereas before you had all
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these cables everywhere that people were
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plugging into well you know what you
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need to do it that's a complete redesign
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so you need to you start a step three
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and you go round back down to step one
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and you start with a new design then you
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move on to step two to validate that
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design whether you've a pre-deployment
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survey and then finally a post
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deployment survey so hopefully that's
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given a little bit of color around the
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different types of surveys because i'm
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sure everyone on the webinar today at
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some point in their life has been asked
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to go and do a survey hey can you go do
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a survey of
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this environment and you know we all say
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yeah of course but what kind of survey
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so
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yeah there we go and these steps are
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really key folks i mean that what matt
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and uh and mac are talking about here is
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is where we want to understand um you
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know we've gone through that whole life
00:13:04
cycle that design and validating health
00:13:06
checks and again health checks are
00:13:08
definitely something you want to keep an
00:13:10
eye on because a lot of times you can
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come into a warehouse i know mac you and
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i've
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we've seen this where you've gone into a
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warehouse
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the complaint is not working but the the
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nms software the dashboard says yes it's
00:13:21
working fine clients are connecting but
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they keep dropping off not too sure
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you go to the warehouse and physically
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look and you see
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well as part of that health check you're
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going to visually look right well
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someone's damaged the antenna it's
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knocked out of place one of them is off
00:13:34
you've got four and three of them are
00:13:36
out or something because a forklift hit
00:13:37
or something a box hit or something like
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that and a lot of times it is you know
00:13:40
those are things that can you can use
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as a visual on your health check to go
00:13:45
and check that out add that into your um
00:13:47
your document as well by
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using our trusty
00:13:50
ios type survey take a picture of it
00:13:52
make a remediation plan for yourself
00:13:55
yeah we we say that a lot about you know
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warehouses and antennas being moved by
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forklifts but it honestly happens more
00:14:01
often than you think because fort lift
00:14:02
drivers it's not necessarily the most
00:14:04
obvious thing they're going to see as
00:14:05
they're driving around they're looking
00:14:06
for the pallets where to go and they
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whack an antenna and it all supports
00:14:10
some it changes the orientation of that
00:14:12
antenna where it's going to affect the
00:14:13
propagation pattern that now means that
00:14:15
the coverage that you used to have down
00:14:17
that aisle is now gone so when they're
00:14:18
trying to do the scanning of the
00:14:20
inventory and the stock it's no longer
00:14:21
working but what do the users say is
00:14:23
that hey the wi-fi sucks
00:14:25
or someone's put in a giant fan
00:14:27
in the warehouse and it's actually
00:14:29
called a big ass fan that's the name of
00:14:31
the company
00:14:33
and it's so massive that uh when the fan
00:14:35
spins the blades kick in right and that
00:14:38
attenuation all that that wi-fi is going
00:14:41
all over the place right it's it's
00:14:42
having a nice dance so you're thinking
00:14:44
of your ap is going around and around
00:14:45
right so that that that does happen and
00:14:47
those things get installed
00:14:49
after your wonderful deployment you've
00:14:51
done all that work i feel like i have to
00:14:53
share a story map of something that
00:14:55
actually happened to us and that was we
00:14:57
did a design for a warehouse and we had
00:15:01
ins we did the design the deployment
00:15:02
validated it and it was all working
00:15:04
perfectly it had lots of racks we put
00:15:06
access points down each aisle and with
00:15:08
the antennas and stuff
00:15:10
and then literally like a couple weeks
00:15:12
later they called us back and said hey
00:15:13
the wi-fi isn't working anymore and
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we're like what do you mean why is the
00:15:17
wi-fi not working anymore i said yeah
00:15:18
look you know as we said has anything
00:15:20
changed he said no nothing's changed
00:15:23
the wi-fi just stopped working and of
00:15:25
course me and mac we got in our car we
00:15:26
drove to the site
00:15:28
we went on site and what did we find
00:15:31
well the back wall where we had mounted
00:15:33
the access points and antennas they had
00:15:35
decided that there was now enough space
00:15:37
to put a rack against the back wall so
00:15:39
they could fit more stock on there so
00:15:41
they had built another rack in front of
00:15:43
all the access points and antennas and
00:15:44
then filled it with stock which was
00:15:46
covering that where the access points
00:15:48
and antennas were covering the aisles
00:15:50
but now they were completely blocked by
00:15:52
this new rack that wasn't there like
00:15:53
literally at two weeks ago and it was
00:15:55
completely filled with stock because we
00:15:56
went well yeah i mean you blocked the
00:15:58
wi-fi so what do you expect and um so
00:16:02
these things they they do genuinely
00:16:04
happen um but anyway let's take a look
00:16:06
at what we got coming up next
00:16:08
and we have our first
00:16:10
whole question
00:16:12
and i will be super delighted to read
00:16:15
the poll question for you
00:16:17
when performing a pre-deployment
00:16:20
validation wi-fi survey
00:16:22
which do you find the most important
00:16:26
a
00:16:27
wall attenuation values
00:16:29
b
00:16:30
signal propagation to understand
00:16:32
coverage
00:16:33
c signal propagation to understand
00:16:35
contention
00:16:36
d
00:16:37
all of the above or e
00:16:40
i do not do pre-deployment validation
00:16:42
wi-fi surveys and just a quick reminder
00:16:46
a pre-deployment validation survey is an
00:16:50
ap on a stick
00:16:52
survey
00:16:55
yep
00:16:56
we uh we will let the poll carry on
00:16:58
running for a few more seconds whilst
00:17:00
you are boating um running
00:17:05
doesn't look like you're running um but
00:17:07
yeah we'll let it go for a few more
00:17:09
seconds and i will end the poll and
00:17:10
share the results of everybody now so
00:17:13
let's share these results and we can see
00:17:15
that big percentage of you went for all
00:17:18
of the above so checking for the all
00:17:21
attenuation values the signal property
00:17:23
propagation to understand coverage as
00:17:25
well as contention so that is really
00:17:27
really good but very interesting to see
00:17:29
that a lot there's still a percentage of
00:17:31
people that do not do pre-deployment
00:17:32
validation wi-fi surveys are apinistic
00:17:34
type of surveys i would be um interested
00:17:37
to find out why that is so if that was
00:17:39
you that answered that please drop a
00:17:41
message in the chat and let us know
00:17:44
exactly and i'm really proud of you
00:17:45
everyone because i was looking forward
00:17:47
to
00:17:48
all of the above answer that's probably
00:17:51
the right answer however if you don't do
00:17:53
pre-deployment surveys we understand we
00:17:55
don't judge you might be working in
00:17:56
environments that do not require those
00:17:58
surveys
00:18:00
and hopefully hopefully after this
00:18:02
webinar we can actually probably um
00:18:04
put some value to that right and and
00:18:06
here we are speaking here we are it was
00:18:08
it was like we knew so the people that
00:18:11
are joining us on this webinar today who
00:18:12
are not familiar with what an ap on a
00:18:14
sticky as well
00:18:15
if you see behind me i've got a here's
00:18:18
one i made earlier that is behind me as
00:18:20
well you can just about see my ap on the
00:18:21
stick so i really like your hand
00:18:23
movement it's like some smooth
00:18:26
don't get too excited mac um and we are
00:18:30
going to just explain a little bit what
00:18:31
an apionistic type of survey is so this
00:18:34
is when you want to take the actual
00:18:36
access point model and antenna that
00:18:37
you're planning to deploy
00:18:39
on site that you are using your
00:18:41
predictive model but maybe it's a
00:18:42
slightly challenging environment perhaps
00:18:44
it's an environment where you just want
00:18:46
to validate that when it does get
00:18:47
deployed it is actually going to
00:18:49
definitely match what you've got in your
00:18:50
predictive model so what you do is you
00:18:52
take that access point you mount it on a
00:18:54
tripod that's what we call the stick and
00:18:56
then what you can do is you're going to
00:18:57
have a battery pack to power that access
00:18:59
point and then you're going to turn it
00:19:01
on
00:19:02
and then you're going to configure yourself a couple of ssids and what
00:19:05
we've got here is an exhaust survey ssid
00:19:07
on 2.4 gigahertz on channel one then an
00:19:09
echo house survey five gigahertz on
00:19:11
channel 36 so it's just broadcasting the
00:19:13
two channels you're going to set this
00:19:15
transmit power to be static and then
00:19:17
what you're going to do is you're going to plop that ap on the stick in one of
00:19:20
those positions that you've got your
00:19:22
predictive model for where you want to
00:19:23
place an access point and then what
00:19:25
you're going to do is you're going to
00:19:26
take your mobile device or your server
00:19:29
device that you're using with your
00:19:30
trusted econo sidekick and then what
00:19:32
you're going to do is you're going to
00:19:33
walk a distance away from that access
00:19:36
point to measure how phi actually covers
00:19:38
and then we've got two values here
00:19:41
and you can see we've got the the guy
00:19:43
with the cap on walk into the cell edge
00:19:45
of neg67
00:19:47
and then we've got the lady with the cap
00:19:49
one walk into the the cell age of -85
00:19:52
dbm now let us know in the chat when
00:19:54
you're doing a pre-deployment ap on a
00:19:56
stick type survey what value do you
00:19:58
usually walk to is it the next 67 dbm
00:20:01
value or do you walk to the neg 85 dbm
00:20:04
value when you're performing your
00:20:05
pre-deployment validation api and stick
00:20:07
type surveys let us know if it's
00:20:09
something else you can tell us it's
00:20:10
something else but
00:20:12
i'll give it a few seconds then i'll let
00:20:14
mac explain what we're talking about
00:20:16
with these
00:20:17
uh values here let me just open okay so
00:20:20
you can see the values are just going
00:20:21
like crazy here this is good yeah a lot
00:20:23
of audience participation here this is
00:20:24
great wow what do you say stu do we have
00:20:27
like 50 50 yeah between
00:20:29
67
00:20:30
it's like reading the time zones right
00:20:32
yes i think we're
00:20:34
right in that middle right it depends
00:20:36
yeah that's why i'm asking actually i
00:20:37
think nike 67 is kind of winning here
00:20:41
versus neg85 so guys next 85-ish around
00:20:45
that we have two values in wi-fi in
00:20:47
a2.11 that we really care about first is
00:20:50
the preamble detect signal detect which
00:20:52
is four db's above the noise flow so if
00:20:56
a wi-fi station hears another wi-fi
00:20:58
station
00:21:00
with four dbs higher than the noise flow
00:21:02
they will be able to demodulate a
00:21:04
preamble and they will differ from
00:21:07
transferring data even if it's their
00:21:09
turn to transfer so that's what a cci
00:21:13
is pretty much when we have multiple
00:21:15
clients trying to access the medium on
00:21:16
the same channel and they can hear each
00:21:18
other very faintly they will still
00:21:21
politely
00:21:23
wait for other clients to finish their
00:21:25
transmissions
00:21:26
that is why we
00:21:28
think that in most situations
00:21:31
surveying with ap on stick until you get
00:21:33
to the threshold of around nega 85 which
00:21:36
happens to be
00:21:38
around 4 db
00:21:40
above the noise flow makes sense because
00:21:44
if you do that then you understand how
00:21:46
your aps are going to be
00:21:49
are going to be
00:21:51
creating contention with other aps
00:21:53
around them
00:21:55
if you just survey to next 67 then you
00:21:57
are validating your primary signal
00:21:59
strength
00:22:00
in typical environment sometimes it will
00:22:03
be next 65 sometimes it's enough to
00:22:05
design for next 70 from free space
00:22:08
pathways perspective
00:22:09
but in most cases we really want to
00:22:11
understand what channel contention is
00:22:13
going to to be hence around negative
00:22:16
threshold
00:22:19
great explanation
00:22:20
thank you very much my love
00:22:23
there is something else that we needed
00:22:24
to talk about when you are doing an ap
00:22:27
on a stick or pre-deployment validation
00:22:29
survey and that is something that's
00:22:31
called freezing your ap so if you're
00:22:33
performing this type of survey with echo
00:22:35
how then that means that you what you
00:22:38
need to do is once you've collected that
00:22:40
information that data you need to tell
00:22:42
echo how that you want to
00:22:44
freeze that access points data so you
00:22:46
can then pick it up and move it to a new
00:22:47
location and then when you survey that
00:22:50
other location in the other location is
00:22:52
stored the details for where you
00:22:54
surveyed originally on that position and
00:22:56
then it was create the new data for the
00:22:58
new access point so it's really
00:23:00
important to remember to freeze your aps
00:23:02
that's why you can see on the left hand
00:23:03
side
00:23:04
that middle ap icon has got like a
00:23:06
snowflake icon
00:23:08
the other thing that we want to talk
00:23:09
about is locking your channels if i just
00:23:11
go back one slide you'll see that our
00:23:13
test ap here the pre-deployment apistic
00:23:15
that we're using is just broadcasting on
00:23:17
channel 1 and channel 36
00:23:20
so why is that important because by
00:23:22
default the psychic is going to be
00:23:23
scanning all of the channels but if you
00:23:26
are
00:23:27
focusing on just the
00:23:29
ap and your ap ap on the stick to get
00:23:31
that data what you can do is tell the
00:23:33
sidekick to only scan on those two
00:23:35
channels
00:23:36
and what that's going to do is it's
00:23:38
going to create more data points on your
00:23:41
survey path so you can get lots of lots
00:23:43
of data and information about your test
00:23:46
ap if that's all that you're interested
00:23:48
in so on the left hand side we locked
00:23:49
onto just the two channels whereas on
00:23:51
the right hand side that's when it's
00:23:53
scanning all channels and you can
00:23:54
clearly see here on the survey path
00:23:56
there are way more blue data points
00:24:03
anything you want to add here mac
00:24:05
i'm typing answers to questions in chat
00:24:08
so no
00:24:10
okay fine
00:24:11
um so yes and there might there may be
00:24:14
an argument to say that even if you are
00:24:15
doing an ap on a stick type of survey
00:24:17
that you may still want to scan all of
00:24:18
the channels so then you get a good
00:24:21
understanding of what's going on in the
00:24:23
environment and mac we can hear you type
00:24:25
in now thanks
00:24:27
um so
00:24:29
we can
00:24:31
if you have all of this channels enabled
00:24:33
to scan when you're doing your api on a
00:24:34
stick type survey you get you get to
00:24:36
build a picture for the environment so
00:24:38
what's happening on all the other
00:24:39
channels around you but if you really
00:24:41
only care about your ap on a stick then
00:24:42
you can just lock on on just those two
00:24:44
channels but be aware that you're not
00:24:45
going to be collecting the data for
00:24:46
those other channels
00:24:48
but this is i mean that is literally
00:24:51
important right is to do this because
00:24:52
this is where you're literally telling
00:24:54
that sidekick to put its resources and
00:24:56
just focus on that
00:24:58
right and that and that helps because uh
00:25:00
it gives you that true painted rf
00:25:03
picture of what's happening and uh
00:25:06
both are correct but both are um you
00:25:08
know they serve their purpose for each
00:25:10
one so
00:25:11
exactly so it really depends on what it
00:25:13
is that you're trying to look for what
00:25:15
you're trying to you're trying to get
00:25:16
from your type of survey the good thing
00:25:18
here is that you the options are
00:25:19
available for what it is that you're
00:25:21
looking for to do
00:25:23
so we're now going to talk about the
00:25:24
different types of survey data
00:25:25
collection for using either our mobile
00:25:27
applications or if you are still using a
00:25:30
laptop so what are these different types
00:25:33
of survey collection methods that we can
00:25:34
do so what we can see here is we've got
00:25:36
a really cool dude with his mobile
00:25:38
device connected to his sidekick
00:25:40
and the first method that we're going to
00:25:42
be talking about is the stop and go uh
00:25:44
type of survey mode so if you've ever
00:25:46
used the echo how application before and
00:25:48
you're performing a survey
00:25:50
you have an option to choose a different
00:25:52
type of survey method so stop and go and
00:25:56
now when would we recommend that we do a
00:25:58
stop and go type of survey uh this is
00:26:01
typically when you're gonna be
00:26:03
in maybe more challenging maybe harsher
00:26:05
environments because what you do is you
00:26:07
basically go to a position on the floor
00:26:10
plan where you are in the environment
00:26:11
and then you tap on the screen of your
00:26:14
mobile device or you click with your
00:26:17
mouse if you're using a laptop and it
00:26:19
will basically count down for a period
00:26:21
of time default is five seconds and it's
00:26:23
going to be collecting the information
00:26:25
about the wi-fi for five seconds in that
00:26:28
position that you're standing in you can
00:26:29
change that time if you want to um but
00:26:32
then once it's finished that countdown
00:26:34
until you move to the next location and
00:26:37
then you click again
00:26:39
it is not collecting any of the layer 2
00:26:41
wi-fi information so all of that data
00:26:43
between from when you walk from point a
00:26:46
to point b and you clicked again
00:26:48
is basically not being collected so it
00:26:51
doesn't collect as much data if you use
00:26:53
the stop and go
00:26:54
method but if you are in certain
00:26:56
environments then there is a use case to
00:26:58
use it there if you're i don't know
00:27:00
there's a lot of stuff flying around
00:27:02
moving around or it's a you've got
00:27:04
treacherous terrain and you need to
00:27:06
really watch where you're going you
00:27:07
might just want to go to that position
00:27:09
click on just stop and go and go okay i
00:27:10
need to climb out of here or swiftly
00:27:13
move over there or dodge a forklift
00:27:16
there or something and then then you
00:27:18
click in another position so that's the
00:27:20
stop and go method you can use it
00:27:22
probably in more dangerous and hazardous
00:27:25
environments so mac i'll let you talk
00:27:26
about the continuous mode of course and
00:27:29
i think you can use continuous instead
00:27:31
of stop and go as well so even if you
00:27:33
are in a very difficult environment
00:27:35
where you constantly have to watch for
00:27:37
hazards you can still use continuous and
00:27:39
do like a mini survey
00:27:41
without moving around too much probably
00:27:43
you will capture more information in the
00:27:45
same time when compared to using stop
00:27:47
and go that's why i personally call stop
00:27:51
and go a legacy mode however it's
00:27:53
nothing wrong with using it it works
00:27:55
for as long as you understand that it
00:27:57
just captures data for a few seconds and
00:27:59
then it stops capturing data when when
00:28:01
you're not clicking and waiting then
00:28:03
you're good to go so continuous mode is
00:28:05
the most
00:28:06
classic mode that we have
00:28:10
for at our disposal what what it means
00:28:13
is you continuously
00:28:15
are scanning channels while walking
00:28:17
around your premise so when you click
00:28:21
first when you start your survey and
00:28:23
then you move to your next location
00:28:26
while you're moving your sidekick is
00:28:28
constantly capturing data in the
00:28:30
background and depending on how many
00:28:32
channels you are scanning it will take a
00:28:35
second or two seconds
00:28:38
not more than that because we have in
00:28:40
two point four and five gigs
00:28:42
39 ish channels depending on regulatory
00:28:45
domain that you're in and even if you're
00:28:47
scanning all of them
00:28:48
the dwell time on every single channel
00:28:51
is 105 milliseconds and we have two
00:28:54
wireless sneaks inside a sidekick so if
00:28:56
they are scanning different sets of
00:28:57
channels and by default they do scan
00:28:59
different sets of channels you will be
00:29:02
having like around two seconds scanning
00:29:04
time until you scan all of the channels
00:29:07
so when it takes you like eight seconds
00:29:09
to
00:29:10
move from point a to point b for example
00:29:13
you will have scanned entire spectrum
00:29:16
four times or more and then when you
00:29:19
click on your second location your four
00:29:22
full scans will be dropped
00:29:24
across the route that you've taken it
00:29:26
will be spread equally and then you
00:29:28
continue walking around so i would say
00:29:30
that continuous mode if you are accurate
00:29:33
if you have good attention to details if
00:29:36
you have good quality floor plans that
00:29:38
are scaled correctly it can be extremely
00:29:41
extremely accurate
00:29:43
the only challenge with continuous mode
00:29:45
might be when you are in an environment
00:29:48
where you don't have too many
00:29:50
too many reference points around you so
00:29:53
if you don't know exactly while looking
00:29:55
at the map where you are then continuous
00:29:58
mode might be a little bit
00:30:00
challenging and in this situation
00:30:02
different
00:30:04
version different type of survey mode
00:30:07
capturing mode
00:30:08
might be a better suit it might be
00:30:11
better suitable
00:30:12
and that leads us to
00:30:14
an autopilot
00:30:16
yeah and i am excited because i get to
00:30:18
talk to you about the autopilot survey
00:30:20
mode which blew my mind when echo came
00:30:22
out with this
00:30:24
type of survey method and i started to
00:30:25
use it in the real world so what just to
00:30:28
recap then the previous two survey modes
00:30:30
continuous and stop and go they both
00:30:31
require you telling the application
00:30:33
where you are on the map at that time
00:30:36
autopilot
00:30:37
uses the built-in ar kit on your ios
00:30:41
devices so you basically give it an
00:30:44
initial calibration points to say where
00:30:46
you are and you walk for a period of
00:30:49
distance and a tip here is to try and
00:30:51
give it as big of a distance as possible
00:30:53
and then once you've tapped again for
00:30:55
the next time it's hands-free and the
00:30:58
device knows where you are it's so cool
00:31:01
like you can see the dude on the screen
00:31:02
right now with the icon and then the
00:31:04
they're kind of showing the direction
00:31:05
that you walk in and we've got a video
00:31:07
that we're going to play you straight
00:31:08
after this slide to show you it live in
00:31:10
action and you can just walk around with
00:31:12
your mobile device if you want to just
00:31:13
have it in your palm of your hand i like
00:31:15
to do with an ipad which you'll see in a
00:31:17
second once you've gained that points
00:31:18
you just walk around and there's no need
00:31:20
to tap on the floor plan on the
00:31:22
application anymore
00:31:24
sometimes you may need to correct it if
00:31:27
it does like go to
00:31:28
beer off at some point you may need to
00:31:30
tap but it's literally if you were
00:31:32
tapping 10 times for a continuous then
00:31:35
it would be once for autopilot so it's
00:31:37
much more hands-off you can walk around
00:31:40
you can capture data so much faster and
00:31:42
you can be way more aware of your
00:31:43
surroundings and especially like max
00:31:45
said as well if you've not got many
00:31:46
reference points we surveyed like a 720
00:31:49
000 square foot warehouse both of us at
00:31:52
the same time using the ipad and
00:31:54
sidekick and autopilot mode and we
00:31:57
didn't barely have to recalibrate the um
00:32:00
the path
00:32:01
at all and we've done it in offices
00:32:03
warehouses outdoors and it's just
00:32:06
unbelievably good so
00:32:08
i'm really excited to show you the video
00:32:10
of it in action we're going to talk you
00:32:11
through some tips and stuff that we do
00:32:13
to make it work as best as possible as
00:32:16
once mac has told you about the gps
00:32:21
go for it so
00:32:23
matt is okay i will tell you about the
00:32:24
gps first then when matt is looking for
00:32:27
a file to share with you so gps mode it
00:32:29
works on mobile devices that are
00:32:32
equipped with gps radio so if you have a
00:32:34
sim equipped version of an ipad for
00:32:37
example or if you are serving with with
00:32:39
an iphone then you can use a gps that is
00:32:42
built into your device so it will be
00:32:44
pretty accurate gps
00:32:46
accuracy in your mobile device will be
00:32:48
around one to three meters typically
00:32:50
sometimes less sometimes more depending
00:32:52
on the environment you're in and
00:32:54
depending on the number of satellites
00:32:55
you are locked into
00:32:56
but if you are surveying vast open
00:32:58
spaces mines deserts for some reason or
00:33:01
big campuses that don't have too many
00:33:03
reference points and you are outside or
00:33:05
if you are doing a city that doesn't
00:33:07
block your access to
00:33:10
satellites so you can have gps lock then
00:33:13
there is nothing wrong with with using
00:33:14
gps in the past we were using
00:33:17
a dongle with windows laptop gps dongle
00:33:20
that you could use outside as well but
00:33:23
i wouldn't say there is any use case for
00:33:25
that now when you can just hook it up
00:33:27
into your mobile device and use that
00:33:29
instead
00:33:32
i say so i have the video now and i will
00:33:35
play it and then let me just talk you
00:33:37
through what is happening so um you can
00:33:39
see now i've got the ipad i've just
00:33:41
clicked on the screen it says that's my
00:33:43
first reference reference point and then
00:33:45
what i do now is i walk as far along
00:33:46
this wall as possible before i click
00:33:48
again on the map so i've tapped again
00:33:50
and you see woohoo live location
00:33:52
and now what you've seen what you can
00:33:53
see is me walking around and then my
00:33:55
survey path being updated for me without
00:33:57
me touching my ipad at all so it's just
00:34:00
moving automatically for me and i've put
00:34:02
my pencil back on top of my ipad now and
00:34:04
i'm just holding my ipad in front of me
00:34:06
and i'm just walking around i had some
00:34:08
weird guy that was filming me um as i
00:34:10
was doing it for some reason uh clue
00:34:12
here he's like he was that guy yeah
00:34:16
followed me around everywhere it was
00:34:17
quite dangerous as well because i think
00:34:18
he got shot by like a bow and arrow at
00:34:19
one point as well not sure if he saw
00:34:21
good old lara over there nearly got me
00:34:23
and there's another guy here he had an
00:34:25
axe but luckily there was a monkey head
00:34:27
on it to protect me from that but again
00:34:29
at no point have i touched my screen now
00:34:31
to update where i am on the floor plan
00:34:33
in the office i am just walking around
00:34:35
walking walking walking and i just
00:34:37
finished so i we we surveyed the whole
00:34:39
office just by using autopilot
00:34:42
it's by far our go-to survey mode we
00:34:45
absolutely love it it's so much faster
00:34:48
it gives you more awareness of your
00:34:50
surroundings and it's just really really
00:34:54
cool to use i'm not gonna lie i love
00:34:56
using it i think it's great um so the
00:34:58
big tip here though to get the best
00:35:00
accuracy and the best outcome from when
00:35:02
you are doing it
00:35:04
you really need to make sure you've got
00:35:05
good
00:35:06
floor plans that definitely helps the
00:35:08
next key thing is in making sure that
00:35:10
you accurately scale those floor plans i
00:35:12
can't emphasize that enough scaling is
00:35:15
pretty much one of the most important
00:35:16
things that you do when it comes to
00:35:18
anything echo or wi-fi related because
00:35:20
everything in wi-fi is all distance
00:35:21
related
00:35:23
then my next tip here is that you want
00:35:25
to when you're setting those first
00:35:26
initial calibration points is try and
00:35:29
give it as big of a distance as possible
00:35:31
and of course make sure you're
00:35:33
accurately tapping on the application
00:35:36
where you are if you don't tap in the
00:35:38
right place then yes it's not going to
00:35:40
be accurate so remember that junk in
00:35:42
junk out so my three big points that i
00:35:45
want to just emphasize there good floor
00:35:47
plans scale it properly and then give
00:35:49
biggest
00:35:50
uh biggest possible reference points for
00:35:52
those two calibration points is going to
00:35:54
set you up for success for when you
00:35:55
perform autopilot surveys i have one
00:35:58
more tip important one so
00:36:00
a nature of the ar kit is that after
00:36:03
some time because it's not perfect it's
00:36:05
using that reckoning so after the first
00:36:07
initial calibration your device it knows
00:36:09
where it is well it doesn't know where
00:36:11
it is but it knows your pace it knows
00:36:13
your
00:36:14
it uses a gyro accelerometer so when you
00:36:16
speed up or slow down it knows about it
00:36:18
when you move to the left or to the
00:36:20
right it knows about it but it won't be
00:36:21
perfect so after some time there is a
00:36:23
chance that it will it will start to
00:36:25
sway away from your path and if you see
00:36:27
that happening don't panic just look at
00:36:31
the map at where you are look at the
00:36:33
real location of where you are
00:36:36
and move to the nearest
00:36:38
to the nearest point that you can locate
00:36:40
on the map and click extremely
00:36:42
accurately where you are it will
00:36:44
recalibrate your ar kit and after you
00:36:47
clicked extremely accurately it will be
00:36:50
amazing again
00:36:51
what i've noticed is that people they
00:36:53
they put quite a lot of details into the
00:36:56
initial calibration but not into
00:36:58
recalibrating it after it starts to sway
00:37:01
away from your path you need to be
00:37:02
equally accurate both initially and
00:37:04
during the survey sometimes you don't
00:37:06
have to do it we've done like two
00:37:08
kilometers walks where we didn't have to
00:37:10
recalibrate it once it was still like
00:37:12
plus minus let's say 20 centimeters
00:37:15
but sometimes if you have changing light
00:37:18
conditions if someone walks in front of
00:37:20
you and you know ark just loses its mind
00:37:24
you will probably have to recalibrate
00:37:26
that stuff
00:37:27
just do it
00:37:29
and one thing to keep in mind on that is
00:37:31
uh isn't in you you've got your ipad or
00:37:33
iphone many of us have uh cases or
00:37:36
something around it uh let's don't block
00:37:38
the camera because that's really
00:37:39
important yes
00:37:41
measurement on the floor right so true
00:37:45
guys few comments on the chat you can do
00:37:48
auto pilots on all apple devices you
00:37:50
don't need to have lighter equipped
00:37:52
devices or wi-fi only devices that's not
00:37:55
the case if you have lidar it will be
00:37:57
more accurate than just the camera but
00:37:59
you can still do it with just the camera
00:38:01
with no lighter and it's fine it's fine
00:38:04
and also you don't have to stop or
00:38:06
restart the survey to recalibrate it you
00:38:08
do it as you go as soon as you realize
00:38:10
that you're starting to to go off
00:38:13
stop think click accurately and life is
00:38:16
good again
00:38:18
yeah for sure
00:38:20
okay so
00:38:21
one of the other things as well that
00:38:22
used to be uh
00:38:24
slightly challenging for me to get my
00:38:25
head around was when uh people were
00:38:27
talking about you know what can you go
00:38:28
and do a passive site survey or can you
00:38:30
go do an active site survey and what
00:38:32
what is the difference so we want to try
00:38:34
and demystify that for you right now so
00:38:36
what is a passive site survey um and
00:38:40
this is when you are using a device to
00:38:43
just passively connect the information
00:38:45
being sent over the air so things like
00:38:47
the ssid the um signal to noise ratio
00:38:51
the
00:38:52
what physical amendment we're using the
00:38:54
security the signal strength um all of
00:38:57
that information is being captured by
00:38:59
the sidekick is listening to what's
00:39:01
called as beacon frames and probe
00:39:02
response frames
00:39:04
but the
00:39:05
echo sidekick it never associates ever
00:39:09
to a wi-fi network the echo house
00:39:11
psychic is a passive only device
00:39:15
whereas if you are doing what is
00:39:17
something that's called an active site
00:39:19
survey
00:39:20
an active site survey is when you are
00:39:23
connected to the wi-fi as you are
00:39:25
performing your wi-fi validation survey
00:39:28
troubleshooting survey assessment survey
00:39:31
but you are then collecting more
00:39:33
information at the higher layers so
00:39:35
passive site survey is just collecting
00:39:37
information at layer one layer two an
00:39:39
active site survey is collect collecting
00:39:41
data at the upper layers so we're doing
00:39:43
things that you if you're pinging the
00:39:45
default gateway or if you're pinging
00:39:47
maybe google dns and you are looking at
00:39:49
the round trip times and the packet loss
00:39:52
that is going to be being done
00:39:54
from the perspective of your survey
00:39:57
devices wireless nic card so if you're
00:39:59
using an iphone it'd be your iphone if
00:40:01
it's your ipad it'd be your ipad if
00:40:04
you're using your windows laptop it
00:40:05
would be your windows laptop
00:40:07
another type of active survey is when
00:40:09
you are actively transmitting data to a
00:40:13
server so like an iperf server an e-perf
00:40:16
server and this is when you're gonna get
00:40:18
the information for things like
00:40:19
throughput and jitter so you're actually
00:40:22
transferring data over the air to the
00:40:24
access point through the access point
00:40:26
the cable to the switch
00:40:28
to the through the firewall to that endpoint
00:40:31
device that you are running those tests
00:40:33
to
00:40:34
and then you are actually going to see
00:40:36
how that wi-fi device is performing in
00:40:39
that specific location at that moment in
00:40:41
time and you can see the actual data
00:40:43
rate and the throughput that it's
00:40:44
actually been able to achieve
00:40:46
but it's really key and it's really
00:40:49
really really really important that we
00:40:51
understand that all of this information
00:40:54
is always from the perspective of the
00:40:57
wi-fi device that you're performing the
00:40:59
survey with and why is that important is
00:41:02
because let's say that you are
00:41:03
performing a wi-fi survey at a your
00:41:06
local school
00:41:07
but you are using the latest and
00:41:09
greatest ipad but the school they're not
00:41:12
going to be using ipads they're using
00:41:14
chromebooks so how your ipad performs on
00:41:17
the wi-fi is going to be completely
00:41:19
different to how that chromebook
00:41:21
performs on the wi-fi so if you're doing
00:41:22
an active survey with the ipad and you
00:41:25
want to show that data to the customer
00:41:27
or the stakeholder whoever asks you to
00:41:29
do that survey
00:41:30
and they look and they go oh that looks
00:41:33
green fantastic amazing but then they do
00:41:35
the same also do the same test with the
00:41:37
chromebook it would look completely
00:41:39
different because they're completely
00:41:40
different devices
00:41:42
so we're actually going to give you a
00:41:44
demo now a live demo
00:41:46
of a active survey that was done so i'm
00:41:49
going to stop sharing let mac take over
00:41:52
and we're going to show you the reason
00:41:53
why it's important that you understand
00:41:55
what it is you're looking at when you're
00:41:56
doing an active site survey hopefully
00:41:58
you can see that nicely and
00:42:01
clearly
00:42:02
i'll move all the stuff away from my
00:42:04
screen so guys what you can see here is
00:42:06
a small skull with a very decent design
00:42:09
for five gigahertz and all the access
00:42:12
points they are set to five gigs some of
00:42:14
them they are set to 2.4 and as you can
00:42:16
see here like the signal strength is
00:42:19
totally spotless here and let me put the
00:42:22
scale up it's neck 67 or stronger
00:42:26
everywhere
00:42:27
secondary signal strength for roaming is
00:42:29
amazing as well
00:42:31
let's take a look at channel
00:42:32
interference and channel interference is
00:42:34
non-existent we have one cci
00:42:37
everywhere and it's absolutely spotless
00:42:39
so from our wi-fi pros perspective the
00:42:42
wi-fi is amazing
00:42:44
and
00:42:45
now further when he was walking around
00:42:47
he was using an old
00:42:50
survey device it might have been or it
00:42:52
must have been one special stream and or
00:42:56
ac device with a maximum
00:42:58
data rate of 86 or something
00:43:01
megs per second in current conditions
00:43:03
and on 20 megahertz channels so we would
00:43:06
expect a throughput because that's the
00:43:09
type of the active server he was doing
00:43:12
to be peaking at around 50 megs per
00:43:16
second that's what i would expect if i
00:43:17
was standing next to the access point
00:43:19
with no interference whatsoever so let's
00:43:22
take a look here is the blue dot and
00:43:24
this blue dot represents fern in his
00:43:26
device
00:43:27
and
00:43:28
here is a slider that we can use to
00:43:30
reproduce the route that ferny has taken
00:43:33
while walking around the skull so he's
00:43:35
here and when i'm moving the slider
00:43:37
around to the right hand side i can see
00:43:40
that he has moved here to room one two
00:43:42
six and now he has moved to the adjacent
00:43:45
room and then he starts going down
00:43:48
and he moved into room one two four then
00:43:50
starts moving down
00:43:52
and then he gets to the corner he goes
00:43:54
behind the corner and then he
00:43:57
walks into rooms on the bottom part
00:44:00
close to the access point on channel 157
00:44:02
and 100. so we understand the survey
00:44:05
that he's taken he started here and then
00:44:07
went down walking into every single room
00:44:10
so now try to imagine a scenario where
00:44:13
you have a school that has paid a
00:44:15
million dollars for a new wi-fi
00:44:17
deployment and then you have a school
00:44:19
principal working together with you when
00:44:21
you're doing a post validate post
00:44:23
deployment wi-fi survey validating the
00:44:26
deployment the new deployment so the guy
00:44:28
is very proud of this network you're
00:44:30
very proud of your work you've designed
00:44:32
it so your voice and video applications
00:44:33
they should work spotlessly and then
00:44:36
you've decided to do an active
00:44:38
throughput test so you started walking
00:44:40
around and when you started here you are
00:44:43
standing very close to the access point
00:44:45
and you can see that the throughput is
00:44:46
close to 50 megs per second so life is
00:44:49
good everything is fine then you start
00:44:51
moving down and when you start moving
00:44:53
down further away from the ap the
00:44:54
throughput goes down to 28 megs per
00:44:57
second because now the signal has to
00:44:59
travel through two or three walls then
00:45:01
you disappear behind the corner and you
00:45:03
can see that the throughput has dropped
00:45:04
to 17.7 megs so it is dropping down
00:45:08
quite dramatically and then you are in a
00:45:10
room that is that has its own ap on
00:45:13
channel 52 by the throughput it's not 50
00:45:16
megs again it's down to 16.6 so friendly
00:45:20
continues walking down and he gets to
00:45:22
around here and we can see on the left
00:45:25
hand side that something has changed he
00:45:28
is indeed
00:45:30
roaming from the access point
00:45:32
that has a mac address bssid so the ss
00:45:36
the mac address of the radio furnace
00:45:38
associated to ending with eb2c i put it
00:45:41
here in a quick is not quick select in a
00:45:45
find a window and it's highlighted the
00:45:48
ap on channel 108. now the second ap
00:45:51
that he's going to jump to
00:45:52
is what so what do you think what access
00:45:55
point he would connect
00:45:57
whilst he is around here would it be an
00:46:00
ap on channel 52 or 36 on y57
00:46:03
or 157 let's take a look so i will
00:46:07
quickly put d8
00:46:11
6c here
00:46:13
and i can already see that verde has now
00:46:15
connected to the access point on channel
00:46:16
52 because when he was passing next to
00:46:18
the ap
00:46:20
his
00:46:21
survey device has decided to join that
00:46:23
ap and then he continues moving down he
00:46:25
will go to rooms one five seven one
00:46:26
hundred with access points on channels
00:46:28
157 and 100 let's take a look at the
00:46:31
throughput so
00:46:33
now i have a heat map with throughput in
00:46:35
front of us
00:46:36
and
00:46:37
it's got red here so the throughput has
00:46:40
dropped down and we know that's because
00:46:41
of he roams to a different ap but it
00:46:43
didn't recover fully it's not
00:46:46
light green again it's darkish green so
00:46:49
even if he's like close to the ap he
00:46:50
goes behind the corner
00:46:52
he now has half of its maximum data of
00:46:56
its maximum throughput real throughput
00:46:58
so do we have problems in let's say room
00:47:01
120 or room 121 we can see that it's red
00:47:04
it's red here does it mean that we have
00:47:06
slow wi-fi in that room let's let's take
00:47:09
a look so when i hover over this room
00:47:11
here
00:47:12
it's 14.7 here
00:47:16
just next to the ap on channel 100 i
00:47:18
have 5.1 megs per second but while i'm
00:47:21
standing here i am still associated to
00:47:24
the ap on channel 52. so let me move
00:47:27
back a little bit i was associated that
00:47:29
ap i moved into that room into that room
00:47:32
that room that room so funny has passed
00:47:35
next to
00:47:37
at least three better aps until he has
00:47:40
made a decision to connect to the access
00:47:42
point on channel
00:47:44
in this room not 100 but to the access
00:47:47
point two rooms away on channel 157 and
00:47:50
is this wrong it's not wrong it's
00:47:52
absolutely absolutely normal that's how
00:47:54
wi-fi works
00:47:56
the roaming decisions are being made by
00:47:58
a wi-fi client using a firmware that is
00:48:01
running on a wi-fi card we call that
00:48:03
firmware we call that decision making a
00:48:05
green diamond algorithm and every device
00:48:07
will be different
00:48:09
macbook will be slower to to roam
00:48:11
because it's not designed for fast
00:48:13
roaming iphone or android handset it
00:48:16
will be roaming faster because there are
00:48:17
mobile devices designed for fast roaming
00:48:20
so for as long as we understand that
00:48:22
this is absolutely normal like dropping
00:48:25
the throughput when we move away from
00:48:26
the ap then we can do active tests like
00:48:28
a throughput test
00:48:30
but if we don't get it then we can have
00:48:33
angry clients shouting at us that their
00:48:36
network sucks when in the real world it
00:48:38
might be spotless because if you if you
00:48:41
grab a phone that connects this wi-fi
00:48:44
network and you move around the school
00:48:46
on a voice call it might work just fine
00:48:49
you don't need to have massive
00:48:50
throughput for a voice call and if that
00:48:52
was a purpose for your wi-fi network
00:48:54
then the life is good you don't need to
00:48:56
have consistently high throughput
00:49:00
and that's pretty much everything that i
00:49:01
wanted to
00:49:03
talk about here i will stop sharing mats
00:49:06
to you anything to add
00:49:08
no that was great we've got a um a
00:49:10
webinar oh question to
00:49:12
fire up a fantastic demo as always so
00:49:15
mac if you would like to read out i will
00:49:16
launch it for us
00:49:18
i will be absolutely delighted to read
00:49:20
it out so the question is how has echo
00:49:23
how improved the way you do wi-fi site
00:49:27
surveys
00:49:28
and the answers are i save so much time
00:49:31
performing wi-fi surveys b i do more
00:49:34
surveys and make more money
00:49:37
c i no longer worry about getting hit by
00:49:39
a forklift truck
00:49:41
d
00:49:42
i'm not getting interrupted by people
00:49:44
asking me if i'm ghostbusting or selling
00:49:46
ice cream or e
00:49:48
i'm not an idaho customer yet
00:49:52
really looking forward to seeing the
00:49:54
answers to to this poll coming in and
00:49:57
uh we'll give it just a few more seconds
00:49:59
to let it carry on running and by the
00:50:02
way just to announce something people on
00:50:04
the webinar make sure you stay to the
00:50:06
end of the webinar today we've got a
00:50:07
little bit more content to get through
00:50:09
then we've got a very big special
00:50:11
announcement to share with you so make
00:50:13
sure you don't drop off early today
00:50:15
um and that being said i will end this
00:50:17
poll now and share the results with you
00:50:20
so
00:50:22
it seems like the vast majority
00:50:24
when we answer a which is that you save
00:50:26
so much time performing site surveys now
00:50:28
thanks to echo and the psychic and this
00:50:30
was really really true for for myself
00:50:32
and mac when we got our hands on the
00:50:34
echo house sidekick plus the the mobile
00:50:36
devices so no longer having to wear
00:50:38
those uh survey trays and place in the
00:50:40
laptops with all of these dongles the
00:50:42
sidekick doesn't drain power from your
00:50:43
laptop you can walk faster you can moon
00:50:46
walk you can run you can do whatever you
00:50:47
want with a sidekick pretty much and you
00:50:49
haven't gotta worry about bashing into
00:50:50
doors or having the power drain from
00:50:53
your survey i remember the days where
00:50:55
the recommendation was to take one step
00:50:57
per second if you had like one dongle
00:51:00
scanning all the channels for you
00:51:01
because the scanning time would be more
00:51:03
than four seconds now and you indeed
00:51:05
have to be working very very slowly uh
00:51:08
there is like more good answers there i
00:51:10
do more service and make more money and
00:51:11
that's exactly the case as well it was
00:51:14
the case for us for me and matt because
00:51:15
we were using how to do a customized
00:51:18
automatic reporting that saved us few
00:51:21
hours every single time we were doing a
00:51:24
either survey or a design because you
00:51:27
can take pretty much all the information
00:51:28
you want from echo how and put it into
00:51:30
into the report that's it
00:51:32
and we have something free for all of
00:51:35
you as well which you will be receiving
00:51:37
into your inbox after this webinar the
00:51:39
thank you for attending it's going to be
00:51:40
our six tips for super accurate wi-fi
00:51:43
site survey so we're just gonna quickly
00:51:45
run through what these six tips are so
00:51:48
first of all like i mentioned before
00:51:49
scaling your floor plan is so so crucial
00:51:52
um the common thing that we see people
00:51:54
do is that they would just get a floor
00:51:55
plan loaded in and then they will scale
00:51:57
a door at one meter but what happens if
00:52:00
that measurement there is off by 20
00:52:02
centimeters and it's actually 0.8 meters
00:52:04
well you think 20 centimeters it doesn't
00:52:07
sound that big of a deal matt but when
00:52:08
you magnify that over a floor plan
00:52:10
that's a 100 meters 20 centimeters turns
00:52:13
into 20 meters so that's a massive
00:52:15
massive difference so make sure you
00:52:17
scale your floor plan accurately because
00:52:19
everything that you do in ecco and wi-fi
00:52:20
is distance related your designs your
00:52:23
validations helps everything so scale is
00:52:25
number one
00:52:28
and number two is to use your beloved
00:52:30
ecohouse sidekick because ekaha sidekick
00:52:32
is a measurement device purpose
00:52:35
measurement device made for capturing
00:52:38
data
00:52:39
wi-fi data and spectrum analysis that
00:52:41
can affect wi-fi transmissions so use
00:52:44
that sidekick it's fast it's accurate
00:52:46
and it's software calibrated so every
00:52:48
time you use your sidekick for for your
00:52:50
surveys for your validations your
00:52:52
results will be
00:52:53
very good
00:52:55
yep and then making sure that you scan
00:52:57
the proper channels so if you're in an
00:52:59
environment where you don't necessarily
00:53:00
need to worry about 2.4 gigahertz you're
00:53:02
not validating it you're not designing
00:53:04
for you don't care about it what you can
00:53:05
do is you could disable those 2.4
00:53:07
gigahertz channels and then you can just
00:53:09
focus the psychic on the 5 gigahertz
00:53:11
therefore collecting more data samples
00:53:14
or if you're doing a pre-deployment ap
00:53:15
on a stick type of survey and you only
00:53:17
care about those two channels lock the
00:53:18
side kick onto those channels if that's
00:53:20
what you want to do
00:53:22
and then four capture accurately and
00:53:24
that's extremely important pretty much i
00:53:27
think like together with the scale and a
00:53:28
good quality floor plan it's
00:53:30
the most important because when you
00:53:33
click where you are it's fine but when
00:53:35
you click when you're going to be in
00:53:37
five seconds it's not fine anymore so
00:53:39
don't go through the walls don't go
00:53:41
through the water don't fly through the
00:53:43
window just click where you are and then
00:53:45
your server results will be spotless
00:53:48
especially
00:53:49
when let's say you are clicking
00:53:52
inaccurately and you went through the
00:53:54
middle of the fountain your clients can
00:53:56
ask can you walk on water and if they do
00:53:59
that your credibility is dead
00:54:02
we've seen some people turn into
00:54:03
superman when they fly out of one window
00:54:05
through one building into another one
00:54:06
you think wow how did they manage to do
00:54:08
that but that's the thing echo doesn't
00:54:10
understand or know so please make sure
00:54:11
you capture accurately and the other
00:54:13
thing you want to mention here is that
00:54:14
number five is make sure you walk on
00:54:16
both sides and working on both sides
00:54:18
what you care about if you want to
00:54:19
understand that wall attenuation value
00:54:21
of a specific wall you can't just walk
00:54:23
on one side of it to understand it you
00:54:24
need to go on both sides so
00:54:26
whatever it is that you're measuring
00:54:28
make sure you go on both sides to
00:54:30
capture that information
00:54:31
and then the final one is number six is
00:54:34
using the correct survey method for your
00:54:36
environment so depending on where you
00:54:38
are or what type of environment you're
00:54:40
in you're going to want to use a
00:54:41
different type of survey mode so we went
00:54:43
through the different types of survey
00:54:44
modes earlier so we won't run through
00:54:46
them again you can read them at your own
00:54:47
leisure once you get this in your inbox
00:54:49
and finally the big news the big
00:54:52
announcement is that we have got a
00:54:53
product launch we are
00:54:55
unbelievably excited the hairs on the
00:54:58
back of my neck have just gone up by
00:54:59
even just showing you this because it's
00:55:01
something we've everyone has been
00:55:03
working so so so hard about and we
00:55:05
cannot wait to talk to you about what it
00:55:08
is and we are telling you
00:55:10
way in advance this time to make sure
00:55:12
you lock that time in your calendars in
00:55:15
your diaries because you're not going to
00:55:16
want to miss
00:55:18
this event it's on may 19th you can just
00:55:20
scan that barcode go and get yourself
00:55:23
registered because it's our biggest ever
00:55:26
software innovation and you there's a
00:55:28
bit of a clue potentially in there which
00:55:31
i won't point out it took me a while
00:55:35
it's a typo okay sorry it's a typo it's
00:55:37
a clue who knows what it is to find out
00:55:39
what it is make sure you register and
00:55:41
make sure you come and join us on may
00:55:43
19th we're going to have an
00:55:45
action-packed webinar it can be full of
00:55:47
live demos
00:55:49
all of the
00:55:50
products yeah is going to be unbelievably amazing
00:55:54
and we are so excited to share with you
00:55:56
what it is so please make sure you scan
00:55:58
that qr code get yourself registered
00:56:00
you're not going to want to miss it
00:56:02
ah i need to take a breath i'm so
00:56:04
excited i'm like
00:56:06
i think we'll all be tired because i
00:56:08
won't be able to sleep now until the
00:56:11
launch until this event so yeah we'll
00:56:13
probably be tired a little bit so guys
00:56:14
while you're registering to the webinar
00:56:17
that is in four weeks time let's answer
00:56:19
some questions shall we so we have a few
00:56:23
great questions in our q a and a few
00:56:26
questions are from nick smith do you
00:56:27
have any examples showing the difference
00:56:29
in design that results from a purely uh
00:56:32
predictive design versus an on-site
00:56:35
survey so
00:56:36
we have tons of examples like that where
00:56:39
we have assumed based on the floor plan
00:56:41
the walls attenuation of let's say three
00:56:43
dbs that because it looked like a
00:56:45
drywall but then you go on site and
00:56:47
validate and it's actually a drywall
00:56:49
brick drywall a new type of partition
00:56:52
that is not three dbs that is 10 dbs and
00:56:54
that will change substantially the
00:56:56
amount of aps that you put in
00:56:58
inside the premise
00:57:00
so it would take you what a day to go to
00:57:02
the site and do a wi-fi
00:57:05
design survey
00:57:07
and it would have saved you potentially
00:57:10
hundreds or tens or several aps that is
00:57:13
way more expensive than spending a day
00:57:16
on site validating attenuation of your
00:57:18
walls another example if you see glass
00:57:21
buildings in big cities you can see
00:57:23
glass
00:57:24
in most cases and you can think that the
00:57:26
glass is like one or two or three dbs
00:57:28
attenuation but in fact sunglass is bomb
00:57:31
proof or rf proof and they might have 16
00:57:35
dbs of attenuation and this will be a
00:57:37
dramatic change to your design because
00:57:40
you won't be able to
00:57:41
nicely cover
00:57:43
anything through a thin glass partition
00:57:47
so i hope that answers your question
00:57:50
nick
00:57:51
another question
00:57:53
is from michael i'm sorry i'm i don't
00:57:55
fully understand what you mean by
00:57:57
freezing the ap
00:57:59
does that just mean keeping it in place
00:58:01
before you move on and that is exactly
00:58:04
the case when you do an ap on a stick
00:58:07
survey and you have a physical access
00:58:09
point on a stick on a tripod and you put
00:58:11
it inside a room and then you do a mini
00:58:13
survey around it to let's say neg 85
00:58:17
preamble detect signal detect threshold
00:58:20
then when you take this ap and you move
00:58:22
it to to a different location it's the
00:58:24
same ap it has the same bssid same mac
00:58:27
address so when you start doing a mini
00:58:29
survey around that ap then echo will
00:58:31
think oh wait a minute
00:58:33
probably this access point is somewhere
00:58:35
in the middle of between your initial
00:58:37
mini survey and your second mini survey
00:58:40
if you don't freeze it echo will move
00:58:42
this ap to a new location somewhere in
00:58:44
between if you freeze it then you can
00:58:46
use the same access point multiple times
00:58:48
while doing multiple mini surveys as
00:58:51
part of your
00:58:53
pre-deployment api stick validation
00:58:55
survey
00:58:57
so i hope that answers that question as
00:58:59
well and i will answer one more question and
00:59:02
before we switch to to stew quickly
00:59:04
any idea when ekaha pro will work on
00:59:06
surface x and surface x is irm-based
00:59:10
isn't it
00:59:11
is it or is it just the
00:59:13
is it
00:59:14
intel
00:59:15
if it's arm then the answer is it will
00:59:17
be a while because we don't have
00:59:20
software that runs on it if it's a
00:59:22
windows based machine then i was using
00:59:25
surface devices for years i was using
00:59:27
surface pros and i was using surface
00:59:29
books with great success
00:59:31
now i wouldn't use them
00:59:33
if i didn't have to
00:59:35
i would prefer to use it with my iphone
00:59:37
or my smaller ipad pro with lidar and a
00:59:41
pen input that's what we are using today
00:59:44
so i hope it answers that question
00:59:46
as well uh cool do we have any more
00:59:48
answers guys questions guys uh yeah we
00:59:50
had a quick quick one with just uh just
00:59:52
before we close out here this is
00:59:53
actually from martin uh swiss where he's
00:59:55
you talk about doing these uh these api
00:59:57
on the stick surveys with extreme
00:59:58
environments um and extreme is known to
01:00:01
have a show duplicate mac addresses for
01:00:04
each of the ssids and the radios and and
01:00:06
so this this can have can be a challenge
01:00:08
right and so the answer is yes you can
01:00:11
um and when you see the two different
01:00:12
macros you'll see two different aps and
01:00:14
you'll sometimes see this on fortinet as
01:00:16
well
01:00:17
we have a method to actually combine
01:00:19
that later uh so not to worry about it
01:00:21
you'll see your ap you can freeze it you
01:00:23
can move it pick it up afterwards as as
01:00:26
matt and macquarie we're talking about
01:00:28
uh sticks very late um earlier
01:00:30
when you come back into account pro
01:00:32
we've got an algorithm that actually go
01:00:33
ahead and uh and and fix that for you so
01:00:37
yes you can do that so it's important so
01:00:39
don't fret if you see that in your
01:00:41
during your surveys not a problem we can
01:00:43
um the system is commonly capable of uh
01:00:45
identifying that
01:00:46
yeah and then i see another question
01:00:48
here asking about survey being available
01:00:49
for android and it's currently in beta
01:00:51
testing at the moment right yeah that
01:00:53
was the next one yeah yeah so it will be
01:00:55
coming soon so just stay tuned for that
01:00:57
we will have it ready for you soon um
01:01:00
there was another question here about
01:01:02
warehouse maps with very little
01:01:03
reference points what would be the best
01:01:05
method um so
01:01:07
what we use when we did the warehouse is
01:01:09
we did use the autopilot survey mode
01:01:11
because that's fantastic if you haven't
01:01:13
got many reference points you just find
01:01:15
the ones when you first initially start
01:01:16
like grab those kind of grab somewhere
01:01:18
that you are familiar with that you can
01:01:19
line up with like the door the fire exit
01:01:22
a window a pillar or something that you
01:01:23
can use then by doing the autopilot
01:01:26
survey when you haven't got references
01:01:27
for where you can be tapping that works
01:01:29
so well for us because you're just
01:01:32
walking around and it's automatically
01:01:33
drawing your path for you which makes
01:01:35
your life so much easier so much faster
01:01:37
and again in the warehouse the big thing
01:01:39
for us is that um you know we were no
01:01:41
longer worried about getting hit by
01:01:43
forklift trucks anymore because we could
01:01:44
have such a better awareness of our
01:01:47
surroundings as we were moving around so
01:01:49
um we would particularly go with the
01:01:51
autopilot survey mode but
01:01:53
again it will depend on your environment
01:01:55
what works best for you if you need to
01:01:56
use the stop and go or continuous mode
01:01:58
for that
01:02:00
was there any other
01:02:02
questions in here before we wrap up
01:02:04
today's webinar
01:02:07
i think this is
01:02:09
definitely had some really good points
01:02:10
um most of them were answered already uh
01:02:12
throughout so i think we're uh
01:02:15
we're good to go okay we're good to go
01:02:17
yep yep just want to say one more
01:02:19
reminder if you didn't see any of our
01:02:20
previous uh demystifying wi-fi series
01:02:23
make sure you go back and check them out
01:02:24
because when you piece all of them
01:02:25
together it will hopefully give you a
01:02:27
really nice and clear uh understanding
01:02:29
and demystify wi-fi is what we was
01:02:31
trying to achieve and you and if you if
01:02:33
it makes you hungry for more that you
01:02:35
need that more learning then go and get
01:02:37
yourself registered in one of our
01:02:38
amazing ecse courses then we will dive
01:02:41
deeper over the course of four days and
01:02:43
you can really understand wi-fi
01:02:45
comprehensively so with that being said
01:02:48
we will wrap up today's webinar make
01:02:50
sure you go register for the product
01:02:51
launch on may 19th it's going to be a
01:02:54
big one we're going to see you there and
01:02:56
you're going to love it i have 100
01:02:58
confidence that it's going to blow
01:03:00
everybody's mind so uh make sure you see
01:03:03
you there thank you very much for
01:03:04
joining us for the webinar and stay in a
01:03:06
few minutes over with us we'll see you
01:03:08
on the next one big love from me and
01:03:10
ecahal
01:03:12
to everyone
01:03:13
thanks guys

Description:

Even if your wireless network has been properly designed, the only way you will ensure it works properly is through a Wi-Fi site survey. The Wi-Fi site survey is the scientific method come to life for your wireless network—a time to test your design hypothesis against real-world data and remove any risk before deploying a brand new network or making a change to an active network. It’s also useful in the ongoing maintenance of validating that your network continues to meet your requirements over time. Changes to user levels, application usage, and even the physical environment can have a significant impact on your network performance. The ongoing health check survey is your best friend for identifying minor issues before they turn into major problems. In this webinar, we’re demystifying the Wi-Fi site survey by taking a closer look at the tools and techniques available to make data-driven Wi-Fi choices that remove risk and ensure your enterprise wireless network is always perfectly tuned to the needs of your users. Topics covered The different types of Wi-Fi site surveys and when they should be performed Why a pre-deployment site survey is a critical follow up for a predictive Wi-Fi design The 6 steps to accurate Wi-Fi site surveys How to interpret collected site survey data The right tools can make Wi-Fi pre-deployment and ongoing health check site surveys incredibly simple. We’ll have some awesome live demos of real-world Ekahau survey files lined up, and as always, we’ll be taking live questions from the audience.

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