Hey all! In today’s video, we’re gonna go over how we can create a predictive site survey.
To see the full video please see it below or you can check it out to our channel: https://sitesurveypros.com/
For those of you who are looking to get a Heat Map or to get a predictive report on the best placement for a piece. A lot of companies hire me as a consultant to perform a lot of Heat map. When they go for deployment, they actually have somewhat of a visual representation of how the AP placement will work depending on the density factors that we set on this plan.
In today’s video, I’m just gonna go over everything that I do when I work with my customers in terms of getting this project up and ready for them. Prior to deploying some ep’s. We always do recommend that doing an actual site survey is best recommended. If you are not doing an actual site survey at least get wireless I guess signal analyzer or a spectrum analysis on the survey itself or in on the environment. Just to kind of get an overall glimpse of you to know before deploying to point four or five is there any noise in the air that all kind of disrupt these signals that we’re running on this specific channel.
Right now, we are using air magnet survey professionals to do this predictive site survey. When we go to start a new project. Go over here, a new project then choose “cisco prime planner project. Then give it a name survey planner. Will import the floor plan or the map. Don’t worry about calibrating right now. I just leave everything in my feet. The floor plan dimensions I leave it as zero and zero. I’ll show you why.
In the next slide here or next video, so over here we go to commercial warehouse signal propagation. I leave it as a default AP power. We can set this up later creepy and I’ll just go to next and we’ll go to the warehouse. So it’s going to ask us if we want to calibrate the dimension service and we’ll say yes. What I’m working with one of my customers all just asking “What’s the distance between the end of this aisle”. Or if they could give me a schematic that has the legends on it.
For now, I’ll just ask the pipe manager or warehouse manager just to give me the rough estimate of the distance between these two points. Let’s say they said it was nine feet. I’ll put nine feet, click on recalibrate and I’ll click ok and based on these measurements here or these warehouse aisles or ceilings what we can do is just start working with an airbag Nick survey pearl and come over here to a planner and what we’ll do is we’ll just create I guess attenuation or density areas.
We’ll create a rectangle and we’ll put that as a warehouse high density. Create another one here high density. Now, we’re gonna do the middle aisles and the racks here. What we’re gonna do is just come over to our drawing tool over here and we’re gonna create a rectangle attenuation area so let’s start over here attenuation area it’s set to warehouse density high. Now, we’re gonna start adding our access points and the reason why I love AirMagnet is because of this feature as long as you have the latest software or firmware and you have a gold membership plan with AirMagnet.
They usually upgrade their antenna patterns and AP’s quite often. I gonna show you something. I deleted all of my settings so we’re just starting over here so the reason why I love this piece of software is because of this ap feature right now and AirMagnet as long as you have the latest software firmware or you have a gold support contract you can always upgrade AirMagnet and you’ll see of the AP profiles in here antennas. So if you just click over here to create AP, click it once and just drag in your AP where you think that AP is gonna be going.
Now that AP is here. Just right click on it. Then, you should double click on this or right-click on it and go to AP properties and this is what you can do. I like to call my AP basis space or one. Now you can click on AP model if it supports it, click over it here. If your working with 2.4 you know channels 16 or 11. Right now, I just leave it as default as channel 1 or 36. The mac address I leave, don’t worry about that just because you’re doing a predictive site survey IP address, it doesn’t matter and now my transmit power is something that you want to take into consideration. Know your access point what you’re working with call support and just ask them “what’s a default transmit power on a Meraki device that is running.
Then the antenna type. Here’s the thing that I love about this is you can come over here and because we work with cisco Meraki a lot we’re gonna go over to Meraki right here and we’re gonna select the MR 33 which is really popular access point and then we’re gonna just leave everything here as a default. Don’t worry about that. You can see if you want to support 11n and the beauty of this here is because I work with a lot of logistics companies manufacturing companies. So typically 90% of my time. I’m in a warehouse environment. I’m gonna set this over to typical 38 feet or 40 feet warehouse ceilings and I’m just going to click default just put default MR33 AP 4O feet ceiling and click ok.
Now that’s just gonna give me my baseline access point. What I’m gonna do is double click on it and I’m gonna set as default AP. When I set it to default AP. Every time I drag another AP it’s gonna inherit those settings that I set 50 milliwatts 44 40 foot ceiling and all the rest of the parameters that I said. So I’m just gonna base on best effort and kind of guestimate, what I’m gonna do is I think based on my knowledge. I’m gonna set an AP here in this area. I’ll set another one here, I’ll set another one here, here, here and here. Now, what we can do I’ll pause this video. Then refresh this list then generate a heat map of the overall signal-to-noise ratio and our social value. So a heat map of displaying the signal around these areas. I’ll just show you this, I’m just gonna pause this video while refreshes and it’ll probably take about two to three minutes.
Now that it finished it’s analysis. Now you can see actually the levels of signal that we have right now we’re about minus 50 in most of these areas right here. If you want to look at some of the gray areas right now you’re gonna about minus 70 so non-existent wifi in these areas. These are just predictive values and what you can do again is you can come over here and if you had some dead zones over here, just easily take an AP because it’s still set into default mode. Click over there and just click on your map again and just do a refresh. Now that we added that AP. You can see, we get more coverage in areas that we didn’t get on the south side of this building.
Now, we’re looking at just some dead zones that we have over here that are in the minus 70 to minus 100 so basically meaning this is nonexistent wifi. Now, you can just repeat the process of adding an AP then click on refresh but I’m not gonna do that right now. So, that’s typically how you run a predictive site survey. I don’t recommend just running a predictive site survey if you are gonna be running a predictive site survey at all. I would always say work with me get a spectrum analysis. I can either ship you one of my cards and we could do is remote analysis where I provide you to software. You can run around the warehouse with your laptop and my software my license key and we could look at signature you would send back the spectrum analyzer and RF Cart and we can look at the analysis of what we captured. Just to see if there’s any interference and if there’s no and I would say, this is fine in terms of doing a predictive site survey. Like I mentioned we always recommend an on sites survey just to look at the real values and you know how everything propagates within your house because you know you might not need 14 APs and might need only 10 but if the price isn’t too much of a concern then you 14 is fine. You could always work with your controller and setting your DVD levels a little bit lower, a little bit higher or going with a different approach of having more APs smaller cell coverages. Hence putting your AP transmit power lower and just having just more of a redundant AP flashing in your warehouse.
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In this video, we go over how to perform a predictive wireless site survey using AirMagnet’s site survey pro software.
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