Metageek makes great wireless analyzer tools. The picture above is showing “Chanalyzer Pro”. The software works with Metageek’s Wi-spy usb wireless adapter line. The unique part about this software is the ability to show all devices that may be operating in the 2.4Ghz spectrum. That means you will be able to identify noise coming from microwave ovens to 2.4Ghz cordless phones. Another cool feature is being able to see if the 2.4Ghz spectrum is overloaded. For instance if you have a high density AP deployment, you will be able to detect if your over saturating the 2.4Ghz spectrum. If so, you may want to consider lowering your AP’s power output. They also sell an adapter that can view the 5Ghz spectrum as well.
Wireless is a bust, at least in the conference room I’m in. The 2.4Ghz spectrum is saturated with hotel AP’s, mifi’s, and Interop wifi sponsor Xirrus AP’s.
I then turned my nexus 4 to strictly use 5Ghz (knowing that there is much more
channel space available in 5Ghz band), however Xirrus doesn’t have good 5Ghz coverage in the conference room I’m in. I was able to connect my macbook pro to a 5Ghz channel. Signal shows a -72db.
The more the 2.4Ghz band is saturated, 5Ghz will become even more important. As we move up the spectrum, our coverage range falls. Building out your wireless network coverage in 5Ghz is extremely important. If you know your 5Ghz coverage is great, then you already know your 2.4Ghz coverage will be more than adequate.
A great tool to use on OSx in the command line is:
Running the command without any switches will show you all the available options.