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Russian
00:00:01
handling the housekeeping for us and a00:00:03
very warm welcome to everybody joining00:00:05
us on our webinar series today like stu00:00:08
said we are continuing on our00:00:09
demystifying wi-fi series and on this00:00:12
episode we are specifically focusing on00:00:14
how we perform wi-fi site surveys so00:00:17
let's jump straight into it first off a00:00:20
quick introduction of who we are so00:00:22
you've got myself and mac uh with the00:00:25
directors of product marketing and ecse00:00:27
over here at eckaha and we've got the00:00:28
fabulous stew who's just done the00:00:30
amazing housekeeping he's going to be00:00:31
keeping on the q a00:00:33
feature so any questions that you really00:00:35
want to ask us during the webinar today00:00:37
please use that functionality and if you00:00:39
see a question there that you really00:00:40
like the lookup that we haven't got00:00:41
around to use the upvote feature because00:00:44
that that means there's going to be a00:00:45
more of a chance that we'll get around00:00:47
to that question during the webinar00:00:49
so if this is your first webinar that00:00:51
you're joining us with and you don't00:00:52
know what we're talking about when we00:00:53
say this is our demystifying wi-fi00:00:55
series uh what do we mean by that and we00:00:58
means that this is the fourth episode of00:01:01
us trying to demystify wi-fi so if you00:01:03
haven't seen the previous episodes the00:01:05
webinars we've done we've got blogs00:01:07
we've got videos and a webinar on each00:01:10
of these categories and you can access00:01:12
them over at our website at ekahal.com00:01:15
so if you confuse around you know what00:01:17
is coverage planning or how you do00:01:18
capacity planning or planning for the00:01:21
wi-fi channels you can go and check how00:01:23
any one of these episodes to help00:01:25
demystify that part of wi-fi00:01:30
and the agenda for today's webinar is00:01:33
fairly simple first we'll start with00:01:35
what is a site survey and site survey my00:01:39
friends is a visit to the site where you00:01:41
take measurements of something in00:01:44
wi-fi these measurements are 802.1100:01:47
modulated things captured by our wi-fi00:01:50
cards and spectrum analysis captured by00:01:53
a surprise spectrum analyzer both built00:01:56
into our amazing sidekick like a00:01:58
hardware sidekick not a stu sidekick00:02:01
then we'll talk about the different00:02:02
types of wi-fi site survey collection00:02:05
modes00:02:06
and finally we'll talk about our tips00:02:09
for performing perfect quality site00:02:11
surveys00:02:15
and the00:02:17
whole webinar really you know focuses on00:02:19
the three easiest how we want to get to00:02:20
three easy steps to great wi-fi every00:02:22
day and the wi-fi site surveys fits into00:02:25
every single one of those categories so00:02:27
into step one when you're validating00:02:29
your design and you go into your site00:02:31
you want to take your00:02:32
trusted echo house sidekick and you can00:02:34
go and take the measurements of you know00:02:36
the attenuation your how much how far00:02:39
your access points cover the channel00:02:40
contention what's going on in your00:02:42
environment so you can go back and00:02:44
validate that your design meets what you00:02:47
were anticipating it to do when you00:02:49
actually get on site00:02:51
you can use your sidekick for that as00:02:53
well as in step two also with step three00:02:55
when you're performing regular health00:02:57
check surveys you want to be using your00:02:59
echo site keep performing the different00:03:01
types of surveys and depending on where00:03:03
you are or how you refer to the wi-fi00:03:05
surveys people will record you know have00:03:08
one name for how you do a predictive00:03:10
model or if you do a predictive design00:03:12
or if you're going on a site are you00:03:13
doing a pre-deployment survey or someone00:03:16
just says to you hey mac or hey stu can00:03:18
you come on site and do a wi-fi survey00:03:20
for me and you're like sure but what00:03:22
kind of survey is it that you want me to00:03:23
do is it a validation survey is it an00:03:26
assessment survey is it a pre-deployment00:03:29
survey so we're going to try and put00:03:31
some clarity around the different types00:03:34
of surveys that you do in the different00:03:36
aspects of the wi-fi life cycle and00:03:38
within our three easy steps to great00:03:39
wi-fi every day00:03:43
and this is the inside look at our00:03:46
amazing sidekick and every time i say or00:03:49
matt says amazing sidekick again sees00:03:51
you smiling there so i'm not sure if you00:03:53
guys seen it before this is how it looks00:03:55
inside we have00:03:57
seven on the directional antennas which00:03:59
means that doesn't matter pretty much00:04:00
how you hold your sidekick it will be00:04:03
omnidirectional it will capture the00:04:06
electromagnetic waves from all the sides00:04:09
and also it has a spectrum analyzer and00:04:11
two00:04:12
great quality wi-fi cards additionally00:04:16
we have a hard drive in it where hard00:04:18
drive ssd00:04:20
and proper battery with00:04:22
they say eight hours battery life but00:04:24
actually00:04:25
i've never had less than eight hour00:04:27
battery life typically it's more00:04:33
so what are these different types of00:04:35
wi-fi surveys that we are referring to00:04:37
then so if we take a look at our three00:04:40
easy steps are broken down in maybe like00:04:41
a slightly different way and we take a00:04:43
look at the step one and that's the00:04:44
design element of the of the three steps00:04:48
so that first part is the wi-fi design00:04:50
survey now this is when you are going to00:04:52
be wanting to go on site to collect the00:04:55
rf and the environment details so this00:04:57
is when you want to go on site find out00:04:59
if they've got any interferers look at00:05:01
where you can and can't mount access00:05:03
points um you know really start to get00:05:06
an understanding of how the environment00:05:08
is so then you can go back to your00:05:10
predicted model inside of echo how00:05:13
and then update your design so you you00:05:16
go there with your sidekick you gather00:05:18
that information you look at how busy00:05:20
the environment is how many noisy00:05:22
neighbors there are and find out you00:05:24
know maybe there's some channels that00:05:26
you want to avoid because everyone's00:05:27
just using let's say the non-dfs00:05:29
channels on five gigahertz so you think00:05:31
oh okay they're really highly uh00:05:33
contentious so i want to maybe use the00:05:35
the non-dfs00:05:37
yeah the uni-2 extended band so i can00:05:39
avoid some of that channel contention00:05:41
and you want to go back get all of that00:05:42
information so you can then go back00:05:44
update your design00:05:45
then moving on to step two mac00:05:48
and step two actually when matt says00:05:52
step one00:05:53
sometimes you will start in a different00:05:55
order so you might be asked to go to the00:05:58
site and do a troubleshooting survey00:05:59
which is step three without designing00:06:02
the network in the first place or00:06:04
sometimes you will start with a00:06:05
predictive design00:06:06
and then you will go to the site to00:06:08
validate your predictive design with00:06:10
wi-fi design survey both part of step00:06:12
one and as part of a validation step two00:06:16
we have two different types of surveys00:06:18
available for us first one is a00:06:20
pre-deployment survey this is the type00:06:22
of survey that you typically do in more00:06:24
in more challenging environments like00:06:26
warehouses or industrial00:06:29
difficult to predict open spaces that's00:06:32
where you use ap on a stick where after00:06:35
placing an access point somewhere it's00:06:36
very difficult to come back and change00:06:38
its location for00:06:40
different reasons like maybe you have00:06:42
access to the ceiling today in a00:06:44
warehouse00:06:45
then you place an access point00:06:47
and00:06:48
on the following week you will have00:06:49
massive racks00:06:51
installed pretty much in front of that00:06:52
ap and you won't have access to that00:06:54
anymore so before you do that for 20000:06:56
aps for example you need to make sure00:06:58
that it's absolutely spotless and that00:07:01
your design is really going to work in a00:07:03
real world that's why ap on stick is00:07:06
crucial in challenging environments not00:07:08
necessarily in carpeted office spaces00:07:10
typical ones with just like a wind lift00:07:13
shafts and toilets concrete core in the00:07:15
center and open spaces around in this00:07:18
spaces it is typically enough to do a00:07:22
wi-fi design survey followed by a wi-fi00:07:25
design without doing ap honesty00:07:27
additionally when you do ap on a stick00:07:29
survey it doesn't mean that you have to00:07:31
do a mini survey around ap on stick by00:07:33
the way we will talk about the ap on a00:07:35
stick in more detail00:07:38
later on it means that you have to just00:07:40
do it enough times for you to fully00:07:42
understand the propagation of00:07:45
radio waves around you so you validate00:07:48
your design so that's pre-deployment00:07:50
survey and then you do your deployment00:07:53
all the access points and fancy antennas00:07:55
they are placed00:07:56
mounted tilted directed00:07:59
exactly as you said they should be in00:08:01
your fancy predictive design00:08:04
then you do a post validation survey and00:08:07
you do a post validation survey00:08:09
at least few days after the deployment00:08:11
was finished because you want to make00:08:13
sure that your irm algorithms radio00:08:16
resource management algorithms different00:08:19
vendors will call it by different names00:08:20
but00:08:21
channels allocation transmitting power00:08:23
level they will need time for the vendor00:08:26
to settle on00:08:28
optimal settings that's why you don't do00:08:30
post deployment survey on the same day00:08:32
as your deployment there's few more00:08:36
i think very good tips for post00:08:38
deployment service that we have for you00:08:39
here when you do a post deployment00:08:42
survey that validates that everything00:08:44
that you that you sculpt as part of your00:08:47
design is really working as it should in00:08:49
the real world00:08:51
frees that channels and transmitting00:08:53
power levels before you start doing the00:08:55
survey it's very very frequent that some00:08:59
channels change00:09:00
while you are walking around00:09:02
transmitting power levels change while00:09:04
you are walking around and then you end00:09:05
up having00:09:07
access points with the radios00:09:09
transmitting on four different channels00:09:11
on five gigahertz and then you scratch00:09:13
your head thinking00:09:14
what the hell happened so freeze that00:09:16
stuff00:09:17
and that's post deployment survey00:09:20
and matthew i think we will go back to00:09:22
you for step three00:09:24
thanks max there there are some really00:09:26
good tips to think about them for when00:09:27
you are doing your post deployment00:09:28
validation survey is letting the rrm00:09:30
algorithm settle down and then freezing00:09:33
that rm algorithm so that your00:09:35
channels and transmit power are not00:09:37
constantly changing whilst you're00:09:38
performing a validation survey because00:09:39
it's if that's happening it's almost00:09:41
like the goal posts are moving every00:09:42
time you're walking around collecting00:09:44
that data because everything's changing00:09:45
the channels are changing the transmit00:09:47
power changing so the coverage is going00:09:49
to look different the channel00:09:50
interference is going to look different00:09:51
so great tip there00:09:53
so if we take a look at step three about00:09:54
the health checks elements to our three00:09:56
steps to great wi-fi every day we kind00:09:58
of broken this down to the periodic00:10:00
health survey and the troubleshooting00:10:02
assessment survey because like max said00:10:04
you may get called in to do a00:10:07
a survey because the people are having00:10:09
problems and then when you start to00:10:11
speak to your stakeholder that's asking00:10:12
you to come and do the survey you00:10:14
actually find out it's because they're00:10:15
having some issues with wi-fi that's00:10:17
already been deployed so they want you00:10:18
to come and do an assessment of that00:10:20
environment00:10:22
but one of the00:10:24
most00:10:25
overlooked surveys i think especially00:10:27
when we was doing professional services00:10:29
was the periodic health survey now a lot00:10:32
of our customers are stakeholders they00:10:34
just didn't see the value in this they00:10:36
didn't think it would be worth paying00:10:37
that additional money for00:10:39
but if you do not perform these periodic00:10:42
health check surveys there's no way you00:10:44
can keep your finger on the pulse of00:10:45
your wi-fi network and find out what is00:10:47
happening and then fixing those issues00:10:50
before they become too apparent and the00:10:51
wi-fi goes down and it stops working and00:10:54
now you can't run your business because00:10:56
you wasn't adaptive and constantly00:10:58
checking your environment00:11:00
so this is why it's super critical to00:11:02
constantly do these periodic health00:11:04
check surveys because so much changes in00:11:07
wi-fi you could have done your amazing00:11:09
design you could have done your perfect00:11:11
deployment and validated it and then00:11:14
three months later00:11:16
they've had physical changes in the00:11:17
environment they have more users coming00:11:19
in they use the wi-fi in a different way00:11:21
they've had00:11:22
up firmware updates happen to the00:11:24
printers and the tvs and other devices00:11:26
around the office and now they're00:11:28
creating tons of channel contention00:11:31
the environment has changed so you need00:11:33
to go there check what's going on and00:11:34
then you can be adaptive to make sure00:11:37
that you constantly keep a high00:11:38
performing wireless network00:11:41
and then the troubleshooting assessment00:11:42
survey is when you've had a design done00:11:45
by someone else and it's been deployed00:11:48
and then a few few weeks months years00:11:51
later down the line they're trying to00:11:52
use the wi-fi and it's just not working00:11:54
in the way that they intended it to00:11:55
whether it's in a warehouse whether it's00:11:56
in an office or a shopping mall and they00:11:59
call you to come out and do a an00:12:01
assessment survey to find out what's00:12:03
going on so this is when you would start00:12:05
at step three you would do an assessment00:12:06
and you would see you know what this00:12:08
design was done five years ago for00:12:10
providing basic wi-fi connectivity but00:12:13
the way that you're trying to use the00:12:14
wi-fi today is you want to run voice and00:12:16
video calls and run your business over00:12:18
to wi-fi whereas before you had all00:12:20
these cables everywhere that people were00:12:21
plugging into well you know what you00:12:23
need to do it that's a complete redesign00:12:25
so you need to you start a step three00:12:27
and you go round back down to step one00:12:29
and you start with a new design then you00:12:31
move on to step two to validate that00:12:32
design whether you've a pre-deployment00:12:34
survey and then finally a post00:12:35
deployment survey so hopefully that's00:12:38
given a little bit of color around the00:12:40
different types of surveys because i'm00:12:41
sure everyone on the webinar today at00:12:44
some point in their life has been asked00:12:45
to go and do a survey hey can you go do00:12:47
a survey of00:12:49
this environment and you know we all say00:12:51
yeah of course but what kind of survey00:12:53
so00:12:54
yeah there we go and these steps are00:12:56
really key folks i mean that what matt00:12:58
and uh and mac are talking about here is00:13:01
is where we want to understand um you00:13:03
know we've gone through that whole life00:13:04
cycle that design and validating health00:13:06
checks and again health checks are00:13:08
definitely something you want to keep an00:13:10
eye on because a lot of times you can00:13:11
come into a warehouse i know mac you and00:13:13
i've00:13:14
we've seen this where you've gone into a00:13:15
warehouse00:13:17
the complaint is not working but the the00:13:19
nms software the dashboard says yes it's00:13:21
working fine clients are connecting but00:13:23
they keep dropping off not too sure00:13:25
you go to the warehouse and physically00:13:27
look and you see00:13:28
well as part of that health check you're00:13:29
going to visually look right well00:13:31
someone's damaged the antenna it's00:13:32
knocked out of place one of them is off00:13:34
you've got four and three of them are00:13:36
out or something because a forklift hit00:13:37
or something a box hit or something like00:13:38
that and a lot of times it is you know00:13:40
those are things that can you can use00:13:43
as a visual on your health check to go00:13:45
and check that out add that into your um00:13:47
your document as well by00:13:49
using our trusty00:13:50
ios type survey take a picture of it00:13:52
make a remediation plan for yourself00:13:55
yeah we we say that a lot about you know00:13:57
warehouses and antennas being moved by00:13:59
forklifts but it honestly happens more00:14:01
often than you think because fort lift00:14:02
drivers it's not necessarily the most00:14:04
obvious thing they're going to see as00:14:05
they're driving around they're looking00:14:06
for the pallets where to go and they00:14:08
whack an antenna and it all supports00:14:10
some it changes the orientation of that00:14:12
antenna where it's going to affect the00:14:13
propagation pattern that now means that00:14:15
the coverage that you used to have down00:14:17
that aisle is now gone so when they're00:14:18
trying to do the scanning of the00:14:20
inventory and the stock it's no longer00:14:21
working but what do the users say is00:14:23
that hey the wi-fi sucks00:14:25
or someone's put in a giant fan00:14:27
in the warehouse and it's actually00:14:29
called a big ass fan that's the name of00:14:31
the company00:14:33
and it's so massive that uh when the fan00:14:35
spins the blades kick in right and that00:14:38
attenuation all that that wi-fi is going00:14:41
all over the place right it's it's00:14:42
having a nice dance so you're thinking00:14:44
of your ap is going around and around00:14:45
right so that that that does happen and00:14:47
those things get installed00:14:49
after your wonderful deployment you've00:14:51
done all that work i feel like i have to00:14:53
share a story map of something that00:14:55
actually happened to us and that was we00:14:57
did a design for a warehouse and we had00:15:01
ins we did the design the deployment00:15:02
validated it and it was all working00:15:04
perfectly it had lots of racks we put00:15:06
access points down each aisle and with00:15:08
the antennas and stuff00:15:10
and then literally like a couple weeks00:15:12
later they called us back and said hey00:15:13
the wi-fi isn't working anymore and00:15:15
we're like what do you mean why is the00:15:17
wi-fi not working anymore i said yeah00:15:18
look you know as we said has anything00:15:20
changed he said no nothing's changed00:15:23
the wi-fi just stopped working and of00:15:25
course me and mac we got in our car we00:15:26
drove to the site00:15:28
we went on site and what did we find00:15:31
well the back wall where we had mounted00:15:33
the access points and antennas they had00:15:35
decided that there was now enough space00:15:37
to put a rack against the back wall so00:15:39
they could fit more stock on there so00:15:41
they had built another rack in front of00:15:43
all the access points and antennas and00:15:44
then filled it with stock which was00:15:46
covering that where the access points00:15:48
and antennas were covering the aisles00:15:50
but now they were completely blocked by00:15:52
this new rack that wasn't there like00:15:53
literally at two weeks ago and it was00:15:55
completely filled with stock because we00:15:56
went well yeah i mean you blocked the00:15:58
wi-fi so what do you expect and um so00:16:02
these things they they do genuinely00:16:04
happen um but anyway let's take a look00:16:06
at what we got coming up next00:16:08
and we have our first00:16:10
whole question00:16:12
and i will be super delighted to read00:16:15
the poll question for you00:16:17
when performing a pre-deployment00:16:20
validation wi-fi survey00:16:22
which do you find the most important00:16:26
a00:16:27
wall attenuation values00:16:29
b00:16:30
signal propagation to understand00:16:32
coverage00:16:33
c signal propagation to understand00:16:35
contention00:16:36
d00:16:37
all of the above or e00:16:40
i do not do pre-deployment validation00:16:42
wi-fi surveys and just a quick reminder00:16:46
a pre-deployment validation survey is an00:16:50
ap on a stick00:16:52
survey00:16:55
yep00:16:56
we uh we will let the poll carry on00:16:58
running for a few more seconds whilst00:17:00
you are boating um running00:17:05
doesn't look like you're running um but00:17:07
yeah we'll let it go for a few more00:17:09
seconds and i will end the poll and00:17:10
share the results of everybody now so00:17:13
let's share these results and we can see00:17:15
that big percentage of you went for all00:17:18
of the above so checking for the all00:17:21
attenuation values the signal property00:17:23
propagation to understand coverage as00:17:25
well as contention so that is really00:17:27
really good but very interesting to see00:17:29
that a lot there's still a percentage of00:17:31
people that do not do pre-deployment00:17:32
validation wi-fi surveys are apinistic00:17:34
type of surveys i would be um interested00:17:37
to find out why that is so if that was00:17:39
you that answered that please drop a00:17:41
message in the chat and let us know00:17:44
exactly and i'm really proud of you00:17:45
everyone because i was looking forward00:17:47
to00:17:48
all of the above answer that's probably00:17:51
the right answer however if you don't do00:17:53
pre-deployment surveys we understand we00:17:55
don't judge you might be working in00:17:56
environments that do not require those00:17:58
surveys00:18:00
and hopefully hopefully after this00:18:02
webinar we can actually probably um00:18:04
put some value to that right and and00:18:06
here we are speaking here we are it was00:18:08
it was like we knew so the people that00:18:11
are joining us on this webinar today who00:18:12
are not familiar with what an ap on a00:18:14
sticky as well00:18:15
if you see behind me i've got a here's00:18:18
one i made earlier that is behind me as00:18:20
well you can just about see my ap on the00:18:21
stick so i really like your hand00:18:23
movement it's like some smooth00:18:26
don't get too excited mac um and we are00:18:30
going to just explain a little bit what00:18:31
an apionistic type of survey is so this00:18:34
is when you want to take the actual00:18:36
access point model and antenna that00:18:37
you're planning to deploy00:18:39
on site that you are using your00:18:41
predictive model but maybe it's a00:18:42
slightly challenging environment perhaps00:18:44
it's an environment where you just want00:18:46
to validate that when it does get00:18:47
deployed it is actually going to00:18:49
definitely match what you've got in your00:18:50
predictive model so what you do is you00:18:52
take that access point you mount it on a00:18:54
tripod that's what we call the stick and00:18:56
then what you can do is you're going to00:18:57
have a battery pack to power that access00:18:59
point and then you're going to turn it00:19:01
on00:19:02
and then you're going to configure yourself a couple of ssids and what00:19:05
we've got here is an exhaust survey ssid00:19:07
on 2.4 gigahertz on channel one then an00:19:09
echo house survey five gigahertz on00:19:11
channel 36 so it's just broadcasting the00:19:13
two channels you're going to set this00:19:15
transmit power to be static and then00:19:17
what you're going to do is you're going to plop that ap on the stick in one of00:19:20
those positions that you've got your00:19:22
predictive model for where you want to00:19:23
place an access point and then what00:19:25
you're going to do is you're going to00:19:26
take your mobile device or your server00:19:29
device that you're using with your00:19:30
trusted econo sidekick and then what00:19:32
you're going to do is you're going to00:19:33
walk a distance away from that access00:19:36
point to measure how phi actually covers00:19:38
and then we've got two values here00:19:41
and you can see we've got the the guy00:19:43
with the cap on walk into the cell edge00:19:45
of neg6700:19:47
and then we've got the lady with the cap00:19:49
one walk into the the cell age of -8500:19:52
dbm now let us know in the chat when00:19:54
you're doing a pre-deployment ap on a00:19:56
stick type survey what value do you00:19:58
usually walk to is it the next 67 dbm00:20:01
value or do you walk to the neg 85 dbm00:20:04
value when you're performing your00:20:05
pre-deployment validation api and stick00:20:07
type surveys let us know if it's00:20:09
something else you can tell us it's00:20:10
something else but00:20:12
i'll give it a few seconds then i'll let00:20:14
mac explain what we're talking about00:20:16
with these00:20:17
uh values here let me just open okay so00:20:20
you can see the values are just going00:20:21
like crazy here this is good yeah a lot00:20:23
of audience participation here this is00:20:24
great wow what do you say stu do we have00:20:27
like 50 50 yeah between00:20:29
6700:20:30
it's like reading the time zones right00:20:32
yes i think we're00:20:34
right in that middle right it depends00:20:36
yeah that's why i'm asking actually i00:20:37
think nike 67 is kind of winning here00:20:41
versus neg85 so guys next 85-ish around00:20:45
that we have two values in wi-fi in00:20:47
a2.11 that we really care about first is00:20:50
the preamble detect signal detect which00:20:52
is four db's above the noise flow so if00:20:56
a wi-fi station hears another wi-fi00:20:58
station00:21:00
with four dbs higher than the noise flow00:21:02
they will be able to demodulate a00:21:04
preamble and they will differ from00:21:07
transferring data even if it's their00:21:09
turn to transfer so that's what a cci00:21:13
is pretty much when we have multiple00:21:15
clients trying to access the medium on00:21:16
the same channel and they can hear each00:21:18
other very faintly they will still00:21:21
politely00:21:23
wait for other clients to finish their00:21:25
transmissions00:21:26
that is why we00:21:28
think that in most situations00:21:31
surveying with ap on stick until you get00:21:33
to the threshold of around nega 85 which00:21:36
happens to be00:21:38
around 4 db00:21:40
above the noise flow makes sense because00:21:44
if you do that then you understand how00:21:46
your aps are going to be00:21:49
are going to be00:21:51
creating contention with other aps00:21:53
around them00:21:55
if you just survey to next 67 then you00:21:57
are validating your primary signal00:21:59
strength00:22:00
in typical environment sometimes it will00:22:03
be next 65 sometimes it's enough to00:22:05
design for next 70 from free space00:22:08
pathways perspective00:22:09
but in most cases we really want to00:22:11
understand what channel contention is00:22:13
going to to be hence around negative00:22:16
threshold00:22:19
great explanation00:22:20
thank you very much my love00:22:23
there is something else that we needed00:22:24
to talk about when you are doing an ap00:22:27
on a stick or pre-deployment validation00:22:29
survey and that is something that's00:22:31
called freezing your ap so if you're00:22:33
performing this type of survey with echo00:22:35
how then that means that you what you00:22:38
need to do is once you've collected that00:22:40
information that data you need to tell00:22:42
echo how that you want to00:22:44
freeze that access points data so you00:22:46
can then pick it up and move it to a new00:22:47
location and then when you survey that00:22:50
other location in the other location is00:22:52
stored the details for where you00:22:54
surveyed originally on that position and00:22:56
then it was create the new data for the00:22:58
new access point so it's really00:23:00
important to remember to freeze your aps00:23:02
that's why you can see on the left hand00:23:03
side00:23:04
that middle ap icon has got like a00:23:06
snowflake icon00:23:08
the other thing that we want to talk00:23:09
about is locking your channels if i just00:23:11
go back one slide you'll see that our00:23:13
test ap here the pre-deployment apistic00:23:15
that we're using is just broadcasting on00:23:17
channel 1 and channel 3600:23:20
so why is that important because by00:23:22
default the psychic is going to be00:23:23
scanning all of the channels but if you00:23:26
are00:23:27
focusing on just the00:23:29
ap and your ap ap on the stick to get00:23:31
that data what you can do is tell the00:23:33
sidekick to only scan on those two00:23:35
channels00:23:36
and what that's going to do is it's00:23:38
going to create more data points on your00:23:41
survey path so you can get lots of lots00:23:43
of data and information about your test00:23:46
ap if that's all that you're interested00:23:48
in so on the left hand side we locked00:23:49
onto just the two channels whereas on00:23:51
the right hand side that's when it's00:23:53
scanning all channels and you can00:23:54
clearly see here on the survey path00:23:56
there are way more blue data points00:24:03
anything you want to add here mac00:24:05
i'm typing answers to questions in chat00:24:08
so no00:24:10
okay fine00:24:11
um so yes and there might there may be00:24:14
an argument to say that even if you are00:24:15
doing an ap on a stick type of survey00:24:17
that you may still want to scan all of00:24:18
the channels so then you get a good00:24:21
understanding of what's going on in the00:24:23
environment and mac we can hear you type00:24:25
in now thanks00:24:27
um so00:24:29
we can00:24:31
if you have all of this channels enabled00:24:33
to scan when you're doing your api on a00:24:34
stick type survey you get you get to00:24:36
build a picture for the environment so00:24:38
what's happening on all the other00:24:39
channels around you but if you really00:24:41
only care about your ap on a stick then00:24:42
you can just lock on on just those two00:24:44
channels but be aware that you're not00:24:45
going to be collecting the data for00:24:46
those other channels00:24:48
but this is i mean that is literally00:24:51
important right is to do this because00:24:52
this is where you're literally telling00:24:54
that sidekick to put its resources and00:24:56
just focus on that00:24:58
right and that and that helps because uh00:25:00
it gives you that true painted rf00:25:03
picture of what's happening and uh00:25:06
both are correct but both are um you00:25:08
know they serve their purpose for each00:25:10
one so00:25:11
exactly so it really depends on what it00:25:13
is that you're trying to look for what00:25:15
you're trying to you're trying to get00:25:16
from your type of survey the good thing00:25:18
here is that you the options are00:25:19
available for what it is that you're00:25:21
looking for to do00:25:23
so we're now going to talk about the00:25:24
different types of survey data00:25:25
collection for using either our mobile00:25:27
applications or if you are still using a00:25:30
laptop so what are these different types00:25:33
of survey collection methods that we can00:25:34
do so what we can see here is we've got00:25:36
a really cool dude with his mobile00:25:38
device connected to his sidekick00:25:40
and the first method that we're going to00:25:42
be talking about is the stop and go uh00:25:44
type of survey mode so if you've ever00:25:46
used the echo how application before and00:25:48
you're performing a survey00:25:50
you have an option to choose a different00:25:52
type of survey method so stop and go and00:25:56
now when would we recommend that we do a00:25:58
stop and go type of survey uh this is00:26:01
typically when you're gonna be00:26:03
in maybe more challenging maybe harsher00:26:05
environments because what you do is you00:26:07
basically go to a position on the floor00:26:10
plan where you are in the environment00:26:11
and then you tap on the screen of your00:26:14
mobile device or you click with your00:26:17
mouse if you're using a laptop and it00:26:19
will basically count down for a period00:26:21
of time default is five seconds and it's00:26:23
going to be collecting the information00:26:25
about the wi-fi for five seconds in that00:26:28
position that you're standing in you can00:26:29
change that time if you want to um but00:26:32
then once it's finished that countdown00:26:34
until you move to the next location and00:26:37
then you click again00:26:39
it is not collecting any of the layer 200:26:41
wi-fi information so all of that data00:26:43
between from when you walk from point a00:26:46
to point b and you clicked again00:26:48
is basically not being collected so it00:26:51
doesn't collect as much data if you use00:26:53
the stop and go00:26:54
method but if you are in certain00:26:56
environments then there is a use case to00:26:58
use it there if you're i don't know00:27:00
there's a lot of stuff flying around00:27:02
moving around or it's a you've got00:27:04
treacherous terrain and you need to00:27:06
really watch where you're going you00:27:07
might just want to go to that position00:27:09
click on just stop and go and go okay i00:27:10
need to climb out of here or swiftly00:27:13
move over there or dodge a forklift00:27:16
there or something and then then you00:27:18
click in another position so that's the00:27:20
stop and go method you can use it00:27:22
probably in more dangerous and hazardous00:27:25
environments so mac i'll let you talk00:27:26
about the continuous mode of course and00:27:29
i think you can use continuous instead00:27:31
of stop and go as well so even if you00:27:33
are in a very difficult environment00:27:35
where you constantly have to watch for00:27:37
hazards you can still use continuous and00:27:39
do like a mini survey00:27:41
without moving around too much probably00:27:43
you will capture more information in the00:27:45
same time when compared to using stop00:27:47
and go that's why i personally call stop00:27:51
and go a legacy mode however it's00:27:53
nothing wrong with using it it works00:27:55
for as long as you understand that it00:27:57
just captures data for a few seconds and00:27:59
then it stops capturing data when when00:28:01
you're not clicking and waiting then00:28:03
you're good to go so continuous mode is00:28:05
the most00:28:06
classic mode that we have00:28:10
for at our disposal what what it means00:28:13
is you continuously00:28:15
are scanning channels while walking00:28:17
around your premise so when you click00:28:21
first when you start your survey and00:28:23
then you move to your next location00:28:26
while you're moving your sidekick is00:28:28
constantly capturing data in the00:28:30
background and depending on how many00:28:32
channels you are scanning it will take a00:28:35
second or two seconds00:28:38
not more than that because we have in00:28:40
two point four and five gigs00:28:42
39 ish channels depending on regulatory00:28:45
domain that you're in and even if you're00:28:47
scanning all of them00:28:48
the dwell time on every single channel00:28:51
is 105 milliseconds and we have two00:28:54
wireless sneaks inside a sidekick so if00:28:56
they are scanning different sets of00:28:57
channels and by default they do scan00:28:59
different sets of channels you will be00:29:02
having like around two seconds scanning00:29:04
time until you scan all of the channels00:29:07
so when it takes you like eight seconds00:29:09
to00:29:10
move from point a to point b for example00:29:13
you will have scanned entire spectrum00:29:16
four times or more and then when you00:29:19
click on your second location your four00:29:22
full scans will be dropped00:29:24
across the route that you've taken it00:29:26
will be spread equally and then you00:29:28
continue walking around so i would say00:29:30
that continuous mode if you are accurate00:29:33
if you have good attention to details if00:29:36
you have good quality floor plans that00:29:38
are scaled correctly it can be extremely00:29:41
extremely accurate00:29:43
the only challenge with continuous mode00:29:45
might be when you are in an environment00:29:48
where you don't have too many00:29:50
too many reference points around you so00:29:53
if you don't know exactly while looking00:29:55
at the map where you are then continuous00:29:58
mode might be a little bit00:30:00
challenging and in this situation00:30:02
different00:30:04
version different type of survey mode00:30:07
capturing mode00:30:08
might be a better suit it might be00:30:11
better suitable00:30:12
and that leads us to00:30:14
an autopilot00:30:16
yeah and i am excited because i get to00:30:18
talk to you about the autopilot survey00:30:20
mode which blew my mind when echo came00:30:22
out with this00:30:24
type of survey method and i started to00:30:25
use it in the real world so what just to00:30:28
recap then the previous two survey modes00:30:30
continuous and stop and go they both00:30:31
require you telling the application00:30:33
where you are on the map at that time00:30:36
autopilot00:30:37
uses the built-in ar kit on your ios00:30:41
devices so you basically give it an00:30:44
initial calibration points to say where00:30:46
you are and you walk for a period of00:30:49
distance and a tip here is to try and00:30:51
give it as big of a distance as possible00:30:53
and then once you've tapped again for00:30:55
the next time it's hands-free and the00:30:58
device knows where you are it's so cool00:31:01
like you can see the dude on the screen00:31:02
right now with the icon and then the00:31:04
they're kind of showing the direction00:31:05
that you walk in and we've got a video00:31:07
that we're going to play you straight00:31:08
after this slide to show you it live in00:31:10
action and you can just walk around with00:31:12
your mobile device if you want to just00:31:13
have it in your palm of your hand i like00:31:15
to do with an ipad which you'll see in a00:31:17
second once you've gained that points00:31:18
you just walk around and there's no need00:31:20
to tap on the floor plan on the00:31:22
application anymore00:31:24
sometimes you may need to correct it if00:31:27
it does like go to00:31:28
beer off at some point you may need to00:31:30
tap but it's literally if you were00:31:32
tapping 10 times for a continuous then00:31:35
it would be once for autopilot so it's00:31:37
much more hands-off you can walk around00:31:40
you can capture data so much faster and00:31:42
you can be way more aware of your00:31:43
surroundings and especially like max00:31:45
said as well if you've not got many00:31:46
reference points we surveyed like a 72000:31:49
000 square foot warehouse both of us at00:31:52
the same time using the ipad and00:31:54
sidekick and autopilot mode and we00:31:57
didn't barely have to recalibrate the um00:32:00
the path00:32:01
at all and we've done it in offices00:32:03
warehouses outdoors and it's just00:32:06
unbelievably good so00:32:08
i'm really excited to show you the video00:32:10
of it in action we're going to talk you00:32:11
through some tips and stuff that we do00:32:13
to make it work as best as possible as00:32:16
once mac has told you about the gps00:32:21
go for it so00:32:23
matt is okay i will tell you about the00:32:24
gps first then when matt is looking for00:32:27
a file to share with you so gps mode it00:32:29
works on mobile devices that are00:32:32
equipped with gps radio so if you have a00:32:34
sim equipped version of an ipad for00:32:37
example or if you are serving with with00:32:39
an iphone then you can use a gps that is00:32:42
built into your device so it will be00:32:44
pretty accurate gps00:32:46
accuracy in your mobile device will be00:32:48
around one to three meters typically00:32:50
sometimes less sometimes more depending00:32:52
on the environment you're in and00:32:54
depending on the number of satellites00:32:55
you are locked into00:32:56
but if you are surveying vast open00:32:58
spaces mines deserts for some reason or00:33:01
big campuses that don't have too many00:33:03
reference points and you are outside or00:33:05
if you are doing a city that doesn't00:33:07
block your access to00:33:10
satellites so you can have gps lock then00:33:13
there is nothing wrong with with using00:33:14
gps in the past we were using00:33:17
a dongle with windows laptop gps dongle00:33:20
that you could use outside as well but00:33:23
i wouldn't say there is any use case for00:33:25
that now when you can just hook it up00:33:27
into your mobile device and use that00:33:29
instead00:33:32
i say so i have the video now and i will00:33:35
play it and then let me just talk you00:33:37
through what is happening so um you can00:33:39
see now i've got the ipad i've just00:33:41
clicked on the screen it says that's my00:33:43
first reference reference point and then00:33:45
what i do now is i walk as far along00:33:46
this wall as possible before i click00:33:48
again on the map so i've tapped again00:33:50
and you see woohoo live location00:33:52
and now what you've seen what you can00:33:53
see is me walking around and then my00:33:55
survey path being updated for me without00:33:57
me touching my ipad at all so it's just00:34:00
moving automatically for me and i've put00:34:02
my pencil back on top of my ipad now and00:34:04
i'm just holding my ipad in front of me00:34:06
and i'm just walking around i had some00:34:08
weird guy that was filming me um as i00:34:10
was doing it for some reason uh clue00:34:12
here he's like he was that guy yeah00:34:16
followed me around everywhere it was00:34:17
quite dangerous as well because i think00:34:18
he got shot by like a bow and arrow at00:34:19
one point as well not sure if he saw00:34:21
good old lara over there nearly got me00:34:23
and there's another guy here he had an00:34:25
axe but luckily there was a monkey head00:34:27
on it to protect me from that but again00:34:29
at no point have i touched my screen now00:34:31
to update where i am on the floor plan00:34:33
in the office i am just walking around00:34:35
walking walking walking and i just00:34:37
finished so i we we surveyed the whole00:34:39
office just by using autopilot00:34:42
it's by far our go-to survey mode we00:34:45
absolutely love it it's so much faster00:34:48
it gives you more awareness of your00:34:50
surroundings and it's just really really00:34:54
cool to use i'm not gonna lie i love00:34:56
using it i think it's great um so the00:34:58
big tip here though to get the best00:35:00
accuracy and the best outcome from when00:35:02
you are doing it00:35:04
you really need to make sure you've got00:35:05
good00:35:06
floor plans that definitely helps the00:35:08
next key thing is in making sure that00:35:10
you accurately scale those floor plans i00:35:12
can't emphasize that enough scaling is00:35:15
pretty much one of the most important00:35:16
things that you do when it comes to00:35:18
anything echo or wi-fi related because00:35:20
everything in wi-fi is all distance00:35:21
related00:35:23
then my next tip here is that you want00:35:25
to when you're setting those first00:35:26
initial calibration points is try and00:35:29
give it as big of a distance as possible00:35:31
and of course make sure you're00:35:33
accurately tapping on the application00:35:36
where you are if you don't tap in the00:35:38
right place then yes it's not going to00:35:40
be accurate so remember that junk in00:35:42
junk out so my three big points that i00:35:45
want to just emphasize there good floor00:35:47
plans scale it properly and then give00:35:49
biggest00:35:50
uh biggest possible reference points for00:35:52
those two calibration points is going to00:35:54
set you up for success for when you00:35:55
perform autopilot surveys i have one00:35:58
more tip important one so00:36:00
a nature of the ar kit is that after00:36:03
some time because it's not perfect it's00:36:05
using that reckoning so after the first00:36:07
initial calibration your device it knows00:36:09
where it is well it doesn't know where00:36:11
it is but it knows your pace it knows00:36:13
your00:36:14
it uses a gyro accelerometer so when you00:36:16
speed up or slow down it knows about it00:36:18
when you move to the left or to the00:36:20
right it knows about it but it won't be00:36:21
perfect so after some time there is a00:36:23
chance that it will it will start to00:36:25
sway away from your path and if you see00:36:27
that happening don't panic just look at00:36:31
the map at where you are look at the00:36:33
real location of where you are00:36:36
and move to the nearest00:36:38
to the nearest point that you can locate00:36:40
on the map and click extremely00:36:42
accurately where you are it will00:36:44
recalibrate your ar kit and after you00:36:47
clicked extremely accurately it will be00:36:50
amazing again00:36:51
what i've noticed is that people they00:36:53
they put quite a lot of details into the00:36:56
initial calibration but not into00:36:58
recalibrating it after it starts to sway00:37:01
away from your path you need to be00:37:02
equally accurate both initially and00:37:04
during the survey sometimes you don't00:37:06
have to do it we've done like two00:37:08
kilometers walks where we didn't have to00:37:10
recalibrate it once it was still like00:37:12
plus minus let's say 20 centimeters00:37:15
but sometimes if you have changing light00:37:18
conditions if someone walks in front of00:37:20
you and you know ark just loses its mind00:37:24
you will probably have to recalibrate00:37:26
that stuff00:37:27
just do it00:37:29
and one thing to keep in mind on that is00:37:31
uh isn't in you you've got your ipad or00:37:33
iphone many of us have uh cases or00:37:36
something around it uh let's don't block00:37:38
the camera because that's really00:37:39
important yes00:37:41
measurement on the floor right so true00:37:45
guys few comments on the chat you can do00:37:48
auto pilots on all apple devices you00:37:50
don't need to have lighter equipped00:37:52
devices or wi-fi only devices that's not00:37:55
the case if you have lidar it will be00:37:57
more accurate than just the camera but00:37:59
you can still do it with just the camera00:38:01
with no lighter and it's fine it's fine00:38:04
and also you don't have to stop or00:38:06
restart the survey to recalibrate it you00:38:08
do it as you go as soon as you realize00:38:10
that you're starting to to go off00:38:13
stop think click accurately and life is00:38:16
good again00:38:18
yeah for sure00:38:20
okay so00:38:21
one of the other things as well that00:38:22
used to be uh00:38:24
slightly challenging for me to get my00:38:25
head around was when uh people were00:38:27
talking about you know what can you go00:38:28
and do a passive site survey or can you00:38:30
go do an active site survey and what00:38:32
what is the difference so we want to try00:38:34
and demystify that for you right now so00:38:36
what is a passive site survey um and00:38:40
this is when you are using a device to00:38:43
just passively connect the information00:38:45
being sent over the air so things like00:38:47
the ssid the um signal to noise ratio00:38:51
the00:38:52
what physical amendment we're using the00:38:54
security the signal strength um all of00:38:57
that information is being captured by00:38:59
the sidekick is listening to what's00:39:01
called as beacon frames and probe00:39:02
response frames00:39:04
but the00:39:05
echo sidekick it never associates ever00:39:09
to a wi-fi network the echo house00:39:11
psychic is a passive only device00:39:15
whereas if you are doing what is00:39:17
something that's called an active site00:39:19
survey00:39:20
an active site survey is when you are00:39:23
connected to the wi-fi as you are00:39:25
performing your wi-fi validation survey00:39:28
troubleshooting survey assessment survey00:39:31
but you are then collecting more00:39:33
information at the higher layers so00:39:35
passive site survey is just collecting00:39:37
information at layer one layer two an00:39:39
active site survey is collect collecting00:39:41
data at the upper layers so we're doing00:39:43
things that you if you're pinging the00:39:45
default gateway or if you're pinging00:39:47
maybe google dns and you are looking at00:39:49
the round trip times and the packet loss00:39:52
that is going to be being done00:39:54
from the perspective of your survey00:39:57
devices wireless nic card so if you're00:39:59
using an iphone it'd be your iphone if00:40:01
it's your ipad it'd be your ipad if00:40:04
you're using your windows laptop it00:40:05
would be your windows laptop00:40:07
another type of active survey is when00:40:09
you are actively transmitting data to a00:40:13
server so like an iperf server an e-perf00:40:16
server and this is when you're gonna get00:40:18
the information for things like00:40:19
throughput and jitter so you're actually00:40:22
transferring data over the air to the00:40:24
access point through the access point00:40:26
the cable to the switch00:40:28
to the through the firewall to that endpoint00:40:31
device that you are running those tests00:40:33
to00:40:34
and then you are actually going to see00:40:36
how that wi-fi device is performing in00:40:39
that specific location at that moment in00:40:41
time and you can see the actual data00:40:43
rate and the throughput that it's00:40:44
actually been able to achieve00:40:46
but it's really key and it's really00:40:49
really really really important that we00:40:51
understand that all of this information00:40:54
is always from the perspective of the00:40:57
wi-fi device that you're performing the00:40:59
survey with and why is that important is00:41:02
because let's say that you are00:41:03
performing a wi-fi survey at a your00:41:06
local school00:41:07
but you are using the latest and00:41:09
greatest ipad but the school they're not00:41:12
going to be using ipads they're using00:41:14
chromebooks so how your ipad performs on00:41:17
the wi-fi is going to be completely00:41:19
different to how that chromebook00:41:21
performs on the wi-fi so if you're doing00:41:22
an active survey with the ipad and you00:41:25
want to show that data to the customer00:41:27
or the stakeholder whoever asks you to00:41:29
do that survey00:41:30
and they look and they go oh that looks00:41:33
green fantastic amazing but then they do00:41:35
the same also do the same test with the00:41:37
chromebook it would look completely00:41:39
different because they're completely00:41:40
different devices00:41:42
so we're actually going to give you a00:41:44
demo now a live demo00:41:46
of a active survey that was done so i'm00:41:49
going to stop sharing let mac take over00:41:52
and we're going to show you the reason00:41:53
why it's important that you understand00:41:55
what it is you're looking at when you're00:41:56
doing an active site survey hopefully00:41:58
you can see that nicely and00:42:01
clearly00:42:02
i'll move all the stuff away from my00:42:04
screen so guys what you can see here is00:42:06
a small skull with a very decent design00:42:09
for five gigahertz and all the access00:42:12
points they are set to five gigs some of00:42:14
them they are set to 2.4 and as you can00:42:16
see here like the signal strength is00:42:19
totally spotless here and let me put the00:42:22
scale up it's neck 67 or stronger00:42:26
everywhere00:42:27
secondary signal strength for roaming is00:42:29
amazing as well00:42:31
let's take a look at channel00:42:32
interference and channel interference is00:42:34
non-existent we have one cci00:42:37
everywhere and it's absolutely spotless00:42:39
so from our wi-fi pros perspective the00:42:42
wi-fi is amazing00:42:44
and00:42:45
now further when he was walking around00:42:47
he was using an old00:42:50
survey device it might have been or it00:42:52
must have been one special stream and or00:42:56
ac device with a maximum00:42:58
data rate of 86 or something00:43:01
megs per second in current conditions00:43:03
and on 20 megahertz channels so we would00:43:06
expect a throughput because that's the00:43:09
type of the active server he was doing00:43:12
to be peaking at around 50 megs per00:43:16
second that's what i would expect if i00:43:17
was standing next to the access point00:43:19
with no interference whatsoever so let's00:43:22
take a look here is the blue dot and00:43:24
this blue dot represents fern in his00:43:26
device00:43:27
and00:43:28
here is a slider that we can use to00:43:30
reproduce the route that ferny has taken00:43:33
while walking around the skull so he's00:43:35
here and when i'm moving the slider00:43:37
around to the right hand side i can see00:43:40
that he has moved here to room one two00:43:42
six and now he has moved to the adjacent00:43:45
room and then he starts going down00:43:48
and he moved into room one two four then00:43:50
starts moving down00:43:52
and then he gets to the corner he goes00:43:54
behind the corner and then he00:43:57
walks into rooms on the bottom part00:44:00
close to the access point on channel 15700:44:02
and 100. so we understand the survey00:44:05
that he's taken he started here and then00:44:07
went down walking into every single room00:44:10
so now try to imagine a scenario where00:44:13
you have a school that has paid a00:44:15
million dollars for a new wi-fi00:44:17
deployment and then you have a school00:44:19
principal working together with you when00:44:21
you're doing a post validate post00:44:23
deployment wi-fi survey validating the00:44:26
deployment the new deployment so the guy00:44:28
is very proud of this network you're00:44:30
very proud of your work you've designed00:44:32
it so your voice and video applications00:44:33
they should work spotlessly and then00:44:36
you've decided to do an active00:44:38
throughput test so you started walking00:44:40
around and when you started here you are00:44:43
standing very close to the access point00:44:45
and you can see that the throughput is00:44:46
close to 50 megs per second so life is00:44:49
good everything is fine then you start00:44:51
moving down and when you start moving00:44:53
down further away from the ap the00:44:54
throughput goes down to 28 megs per00:44:57
second because now the signal has to00:44:59
travel through two or three walls then00:45:01
you disappear behind the corner and you00:45:03
can see that the throughput has dropped00:45:04
to 17.7 megs so it is dropping down00:45:08
quite dramatically and then you are in a00:45:10
room that is that has its own ap on00:45:13
channel 52 by the throughput it's not 5000:45:16
megs again it's down to 16.6 so friendly00:45:20
continues walking down and he gets to00:45:22
around here and we can see on the left00:45:25
hand side that something has changed he00:45:28
is indeed00:45:30
roaming from the access point00:45:32
that has a mac address bssid so the ss00:45:36
the mac address of the radio furnace00:45:38
associated to ending with eb2c i put it00:45:41
here in a quick is not quick select in a00:45:45
find a window and it's highlighted the00:45:48
ap on channel 108. now the second ap00:45:51
that he's going to jump to00:45:52
is what so what do you think what access00:45:55
point he would connect00:45:57
whilst he is around here would it be an00:46:00
ap on channel 52 or 36 on y5700:46:03
or 157 let's take a look so i will00:46:07
quickly put d800:46:11
6c here00:46:13
and i can already see that verde has now00:46:15
connected to the access point on channel00:46:16
52 because when he was passing next to00:46:18
the ap00:46:20
his00:46:21
survey device has decided to join that00:46:23
ap and then he continues moving down he00:46:25
will go to rooms one five seven one00:46:26
hundred with access points on channels00:46:28
157 and 100 let's take a look at the00:46:31
throughput so00:46:33
now i have a heat map with throughput in00:46:35
front of us00:46:36
and00:46:37
it's got red here so the throughput has00:46:40
dropped down and we know that's because00:46:41
of he roams to a different ap but it00:46:43
didn't recover fully it's not00:46:46
light green again it's darkish green so00:46:49
even if he's like close to the ap he00:46:50
goes behind the corner00:46:52
he now has half of its maximum data of00:46:56
its maximum throughput real throughput00:46:58
so do we have problems in let's say room00:47:01
120 or room 121 we can see that it's red00:47:04
it's red here does it mean that we have00:47:06
slow wi-fi in that room let's let's take00:47:09
a look so when i hover over this room00:47:11
here00:47:12
it's 14.7 here00:47:16
just next to the ap on channel 100 i00:47:18
have 5.1 megs per second but while i'm00:47:21
standing here i am still associated to00:47:24
the ap on channel 52. so let me move00:47:27
back a little bit i was associated that00:47:29
ap i moved into that room into that room00:47:32
that room that room so funny has passed00:47:35
next to00:47:37
at least three better aps until he has00:47:40
made a decision to connect to the access00:47:42
point on channel00:47:44
in this room not 100 but to the access00:47:47
point two rooms away on channel 157 and00:47:50
is this wrong it's not wrong it's00:47:52
absolutely absolutely normal that's how00:47:54
wi-fi works00:47:56
the roaming decisions are being made by00:47:58
a wi-fi client using a firmware that is00:48:01
running on a wi-fi card we call that00:48:03
firmware we call that decision making a00:48:05
green diamond algorithm and every device00:48:07
will be different00:48:09
macbook will be slower to to roam00:48:11
because it's not designed for fast00:48:13
roaming iphone or android handset it00:48:16
will be roaming faster because there are00:48:17
mobile devices designed for fast roaming00:48:20
so for as long as we understand that00:48:22
this is absolutely normal like dropping00:48:25
the throughput when we move away from00:48:26
the ap then we can do active tests like00:48:28
a throughput test00:48:30
but if we don't get it then we can have00:48:33
angry clients shouting at us that their00:48:36
network sucks when in the real world it00:48:38
might be spotless because if you if you00:48:41
grab a phone that connects this wi-fi00:48:44
network and you move around the school00:48:46
on a voice call it might work just fine00:48:49
you don't need to have massive00:48:50
throughput for a voice call and if that00:48:52
was a purpose for your wi-fi network00:48:54
then the life is good you don't need to00:48:56
have consistently high throughput00:49:00
and that's pretty much everything that i00:49:01
wanted to00:49:03
talk about here i will stop sharing mats00:49:06
to you anything to add00:49:08
no that was great we've got a um a00:49:10
webinar oh question to00:49:12
fire up a fantastic demo as always so00:49:15
mac if you would like to read out i will00:49:16
launch it for us00:49:18
i will be absolutely delighted to read00:49:20
it out so the question is how has echo00:49:23
how improved the way you do wi-fi site00:49:27
surveys00:49:28
and the answers are i save so much time00:49:31
performing wi-fi surveys b i do more00:49:34
surveys and make more money00:49:37
c i no longer worry about getting hit by00:49:39
a forklift truck00:49:41
d00:49:42
i'm not getting interrupted by people00:49:44
asking me if i'm ghostbusting or selling00:49:46
ice cream or e00:49:48
i'm not an idaho customer yet00:49:52
really looking forward to seeing the00:49:54
answers to to this poll coming in and00:49:57
uh we'll give it just a few more seconds00:49:59
to let it carry on running and by the00:50:02
way just to announce something people on00:50:04
the webinar make sure you stay to the00:50:06
end of the webinar today we've got a00:50:07
little bit more content to get through00:50:09
then we've got a very big special00:50:11
announcement to share with you so make00:50:13
sure you don't drop off early today00:50:15
um and that being said i will end this00:50:17
poll now and share the results with you00:50:20
so00:50:22
it seems like the vast majority00:50:24
when we answer a which is that you save00:50:26
so much time performing site surveys now00:50:28
thanks to echo and the psychic and this00:50:30
was really really true for for myself00:50:32
and mac when we got our hands on the00:50:34
echo house sidekick plus the the mobile00:50:36
devices so no longer having to wear00:50:38
those uh survey trays and place in the00:50:40
laptops with all of these dongles the00:50:42
sidekick doesn't drain power from your00:50:43
laptop you can walk faster you can moon00:50:46
walk you can run you can do whatever you00:50:47
want with a sidekick pretty much and you00:50:49
haven't gotta worry about bashing into00:50:50
doors or having the power drain from00:50:53
your survey i remember the days where00:50:55
the recommendation was to take one step00:50:57
per second if you had like one dongle00:51:00
scanning all the channels for you00:51:01
because the scanning time would be more00:51:03
than four seconds now and you indeed00:51:05
have to be working very very slowly uh00:51:08
there is like more good answers there i00:51:10
do more service and make more money and00:51:11
that's exactly the case as well it was00:51:14
the case for us for me and matt because00:51:15
we were using how to do a customized00:51:18
automatic reporting that saved us few00:51:21
hours every single time we were doing a00:51:24
either survey or a design because you00:51:27
can take pretty much all the information00:51:28
you want from echo how and put it into00:51:30
into the report that's it00:51:32
and we have something free for all of00:51:35
you as well which you will be receiving00:51:37
into your inbox after this webinar the00:51:39
thank you for attending it's going to be00:51:40
our six tips for super accurate wi-fi00:51:43
site survey so we're just gonna quickly00:51:45
run through what these six tips are so00:51:48
first of all like i mentioned before00:51:49
scaling your floor plan is so so crucial00:51:52
um the common thing that we see people00:51:54
do is that they would just get a floor00:51:55
plan loaded in and then they will scale00:51:57
a door at one meter but what happens if00:52:00
that measurement there is off by 2000:52:02
centimeters and it's actually 0.8 meters00:52:04
well you think 20 centimeters it doesn't00:52:07
sound that big of a deal matt but when00:52:08
you magnify that over a floor plan00:52:10
that's a 100 meters 20 centimeters turns00:52:13
into 20 meters so that's a massive00:52:15
massive difference so make sure you00:52:17
scale your floor plan accurately because00:52:19
everything that you do in ecco and wi-fi00:52:20
is distance related your designs your00:52:23
validations helps everything so scale is00:52:25
number one00:52:28
and number two is to use your beloved00:52:30
ecohouse sidekick because ekaha sidekick00:52:32
is a measurement device purpose00:52:35
measurement device made for capturing00:52:38
data00:52:39
wi-fi data and spectrum analysis that00:52:41
can affect wi-fi transmissions so use00:52:44
that sidekick it's fast it's accurate00:52:46
and it's software calibrated so every00:52:48
time you use your sidekick for for your00:52:50
surveys for your validations your00:52:52
results will be00:52:53
very good00:52:55
yep and then making sure that you scan00:52:57
the proper channels so if you're in an00:52:59
environment where you don't necessarily00:53:00
need to worry about 2.4 gigahertz you're00:53:02
not validating it you're not designing00:53:04
for you don't care about it what you can00:53:05
do is you could disable those 2.400:53:07
gigahertz channels and then you can just00:53:09
focus the psychic on the 5 gigahertz00:53:11
therefore collecting more data samples00:53:14
or if you're doing a pre-deployment ap00:53:15
on a stick type of survey and you only00:53:17
care about those two channels lock the00:53:18
side kick onto those channels if that's00:53:20
what you want to do00:53:22
and then four capture accurately and00:53:24
that's extremely important pretty much i00:53:27
think like together with the scale and a00:53:28
good quality floor plan it's00:53:30
the most important because when you00:53:33
click where you are it's fine but when00:53:35
you click when you're going to be in00:53:37
five seconds it's not fine anymore so00:53:39
don't go through the walls don't go00:53:41
through the water don't fly through the00:53:43
window just click where you are and then00:53:45
your server results will be spotless00:53:48
especially00:53:49
when let's say you are clicking00:53:52
inaccurately and you went through the00:53:54
middle of the fountain your clients can00:53:56
ask can you walk on water and if they do00:53:59
that your credibility is dead00:54:02
we've seen some people turn into00:54:03
superman when they fly out of one window00:54:05
through one building into another one00:54:06
you think wow how did they manage to do00:54:08
that but that's the thing echo doesn't00:54:10
understand or know so please make sure00:54:11
you capture accurately and the other00:54:13
thing you want to mention here is that00:54:14
number five is make sure you walk on00:54:16
both sides and working on both sides00:54:18
what you care about if you want to00:54:19
understand that wall attenuation value00:54:21
of a specific wall you can't just walk00:54:23
on one side of it to understand it you00:54:24
need to go on both sides so00:54:26
whatever it is that you're measuring00:54:28
make sure you go on both sides to00:54:30
capture that information00:54:31
and then the final one is number six is00:54:34
using the correct survey method for your00:54:36
environment so depending on where you00:54:38
are or what type of environment you're00:54:40
in you're going to want to use a00:54:41
different type of survey mode so we went00:54:43
through the different types of survey00:54:44
modes earlier so we won't run through00:54:46
them again you can read them at your own00:54:47
leisure once you get this in your inbox00:54:49
and finally the big news the big00:54:52
announcement is that we have got a00:54:53
product launch we are00:54:55
unbelievably excited the hairs on the00:54:58
back of my neck have just gone up by00:54:59
even just showing you this because it's00:55:01
something we've everyone has been00:55:03
working so so so hard about and we00:55:05
cannot wait to talk to you about what it00:55:08
is and we are telling you00:55:10
way in advance this time to make sure00:55:12
you lock that time in your calendars in00:55:15
your diaries because you're not going to00:55:16
want to miss00:55:18
this event it's on may 19th you can just00:55:20
scan that barcode go and get yourself00:55:23
registered because it's our biggest ever00:55:26
software innovation and you there's a00:55:28
bit of a clue potentially in there which00:55:31
i won't point out it took me a while00:55:35
it's a typo okay sorry it's a typo it's00:55:37
a clue who knows what it is to find out00:55:39
what it is make sure you register and00:55:41
make sure you come and join us on may00:55:43
19th we're going to have an00:55:45
action-packed webinar it can be full of00:55:47
live demos00:55:49
all of the00:55:50
products yeah is going to be unbelievably amazing00:55:54
and we are so excited to share with you00:55:56
what it is so please make sure you scan00:55:58
that qr code get yourself registered00:56:00
you're not going to want to miss it00:56:02
ah i need to take a breath i'm so00:56:04
excited i'm like00:56:06
i think we'll all be tired because i00:56:08
won't be able to sleep now until the00:56:11
launch until this event so yeah we'll00:56:13
probably be tired a little bit so guys00:56:14
while you're registering to the webinar00:56:17
that is in four weeks time let's answer00:56:19
some questions shall we so we have a few00:56:23
great questions in our q a and a few00:56:26
questions are from nick smith do you00:56:27
have any examples showing the difference00:56:29
in design that results from a purely uh00:56:32
predictive design versus an on-site00:56:35
survey so00:56:36
we have tons of examples like that where00:56:39
we have assumed based on the floor plan00:56:41
the walls attenuation of let's say three00:56:43
dbs that because it looked like a00:56:45
drywall but then you go on site and00:56:47
validate and it's actually a drywall00:56:49
brick drywall a new type of partition00:56:52
that is not three dbs that is 10 dbs and00:56:54
that will change substantially the00:56:56
amount of aps that you put in00:56:58
inside the premise00:57:00
so it would take you what a day to go to00:57:02
the site and do a wi-fi00:57:05
design survey00:57:07
and it would have saved you potentially00:57:10
hundreds or tens or several aps that is00:57:13
way more expensive than spending a day00:57:16
on site validating attenuation of your00:57:18
walls another example if you see glass00:57:21
buildings in big cities you can see00:57:23
glass00:57:24
in most cases and you can think that the00:57:26
glass is like one or two or three dbs00:57:28
attenuation but in fact sunglass is bomb00:57:31
proof or rf proof and they might have 1600:57:35
dbs of attenuation and this will be a00:57:37
dramatic change to your design because00:57:40
you won't be able to00:57:41
nicely cover00:57:43
anything through a thin glass partition00:57:47
so i hope that answers your question00:57:50
nick00:57:51
another question00:57:53
is from michael i'm sorry i'm i don't00:57:55
fully understand what you mean by00:57:57
freezing the ap00:57:59
does that just mean keeping it in place00:58:01
before you move on and that is exactly00:58:04
the case when you do an ap on a stick00:58:07
survey and you have a physical access00:58:09
point on a stick on a tripod and you put00:58:11
it inside a room and then you do a mini00:58:13
survey around it to let's say neg 8500:58:17
preamble detect signal detect threshold00:58:20
then when you take this ap and you move00:58:22
it to to a different location it's the00:58:24
same ap it has the same bssid same mac00:58:27
address so when you start doing a mini00:58:29
survey around that ap then echo will00:58:31
think oh wait a minute00:58:33
probably this access point is somewhere00:58:35
in the middle of between your initial00:58:37
mini survey and your second mini survey00:58:40
if you don't freeze it echo will move00:58:42
this ap to a new location somewhere in00:58:44
between if you freeze it then you can00:58:46
use the same access point multiple times00:58:48
while doing multiple mini surveys as00:58:51
part of your00:58:53
pre-deployment api stick validation00:58:55
survey00:58:57
so i hope that answers that question as00:58:59
well and i will answer one more question and00:59:02
before we switch to to stew quickly00:59:04
any idea when ekaha pro will work on00:59:06
surface x and surface x is irm-based00:59:10
isn't it00:59:11
is it or is it just the00:59:13
is it00:59:14
intel00:59:15
if it's arm then the answer is it will00:59:17
be a while because we don't have00:59:20
software that runs on it if it's a00:59:22
windows based machine then i was using00:59:25
surface devices for years i was using00:59:27
surface pros and i was using surface00:59:29
books with great success00:59:31
now i wouldn't use them00:59:33
if i didn't have to00:59:35
i would prefer to use it with my iphone00:59:37
or my smaller ipad pro with lidar and a00:59:41
pen input that's what we are using today00:59:44
so i hope it answers that question00:59:46
as well uh cool do we have any more00:59:48
answers guys questions guys uh yeah we00:59:50
had a quick quick one with just uh just00:59:52
before we close out here this is00:59:53
actually from martin uh swiss where he's00:59:55
you talk about doing these uh these api00:59:57
on the stick surveys with extreme00:59:58
environments um and extreme is known to01:00:01
have a show duplicate mac addresses for01:00:04
each of the ssids and the radios and and01:00:06
so this this can have can be a challenge01:00:08
right and so the answer is yes you can01:00:11
um and when you see the two different01:00:12
macros you'll see two different aps and01:00:14
you'll sometimes see this on fortinet as01:00:16
well01:00:17
we have a method to actually combine01:00:19
that later uh so not to worry about it01:00:21
you'll see your ap you can freeze it you01:00:23
can move it pick it up afterwards as as01:00:26
matt and macquarie we're talking about01:00:28
uh sticks very late um earlier01:00:30
when you come back into account pro01:00:32
we've got an algorithm that actually go01:00:33
ahead and uh and and fix that for you so01:00:37
yes you can do that so it's important so01:00:39
don't fret if you see that in your01:00:41
during your surveys not a problem we can01:00:43
um the system is commonly capable of uh01:00:45
identifying that01:00:46
yeah and then i see another question01:00:48
here asking about survey being available01:00:49
for android and it's currently in beta01:00:51
testing at the moment right yeah that01:00:53
was the next one yeah yeah so it will be01:00:55
coming soon so just stay tuned for that01:00:57
we will have it ready for you soon um01:01:00
there was another question here about01:01:02
warehouse maps with very little01:01:03
reference points what would be the best01:01:05
method um so01:01:07
what we use when we did the warehouse is01:01:09
we did use the autopilot survey mode01:01:11
because that's fantastic if you haven't01:01:13
got many reference points you just find01:01:15
the ones when you first initially start01:01:16
like grab those kind of grab somewhere01:01:18
that you are familiar with that you can01:01:19
line up with like the door the fire exit01:01:22
a window a pillar or something that you01:01:23
can use then by doing the autopilot01:01:26
survey when you haven't got references01:01:27
for where you can be tapping that works01:01:29
so well for us because you're just01:01:32
walking around and it's automatically01:01:33
drawing your path for you which makes01:01:35
your life so much easier so much faster01:01:37
and again in the warehouse the big thing01:01:39
for us is that um you know we were no01:01:41
longer worried about getting hit by01:01:43
forklift trucks anymore because we could01:01:44
have such a better awareness of our01:01:47
surroundings as we were moving around so01:01:49
um we would particularly go with the01:01:51
autopilot survey mode but01:01:53
again it will depend on your environment01:01:55
what works best for you if you need to01:01:56
use the stop and go or continuous mode01:01:58
for that01:02:00
was there any other01:02:02
questions in here before we wrap up01:02:04
today's webinar01:02:07
i think this is01:02:09
definitely had some really good points01:02:10
um most of them were answered already uh01:02:12
throughout so i think we're uh01:02:15
we're good to go okay we're good to go01:02:17
yep yep just want to say one more01:02:19
reminder if you didn't see any of our01:02:20
previous uh demystifying wi-fi series01:02:23
make sure you go back and check them out01:02:24
because when you piece all of them01:02:25
together it will hopefully give you a01:02:27
really nice and clear uh understanding01:02:29
and demystify wi-fi is what we was01:02:31
trying to achieve and you and if you if01:02:33
it makes you hungry for more that you01:02:35
need that more learning then go and get01:02:37
yourself registered in one of our01:02:38
amazing ecse courses then we will dive01:02:41
deeper over the course of four days and01:02:43
you can really understand wi-fi01:02:45
comprehensively so with that being said01:02:48
we will wrap up today's webinar make01:02:50
sure you go register for the product01:02:51
launch on may 19th it's going to be a01:02:54
big one we're going to see you there and01:02:56
you're going to love it i have 10001:02:58
confidence that it's going to blow01:03:00
everybody's mind so uh make sure you see01:03:03
you there thank you very much for01:03:04
joining us for the webinar and stay in a01:03:06
few minutes over with us we'll see you01:03:08
on the next one big love from me and01:03:10
ecahal01:03:12
to everyone01:03:13
thanks guysDescription:
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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