Finding Interference with App

[jpearson0525]

One of my goals is to find a way to identify areas of high wifi interference. At the moment, I run around and take a lot of measurements based on a map I make up. I use the map to provide me with measurement coordinates, so I can see what is happening. To attempt to find interference points, I take all of the export reports from my measurements, mark each record with the measurement point ID, and sort them by channels and measurement point ID. Then I look at the signal strength of all of the on a channel and see which APs are bombarding a device on the same channel. Is this a reasonable technique? I'm now trying to include the channels with widths > 20 Mhz to how they may be contributing to any interference. One question is how would you look at the strength values and what would you believe are interfering signals. example: -80 and -30 should interfer. However, -50 and -55 probably are interfering.
Cheers, Jim.