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Showing posts from March, 2014

Device Retry% in Fluke AirMagnet WiFi Analyzer (Video!)

So I'm milling around Twitter one afternoon when someone told me that Fluke AirMagnet WiFi Analyzer was overwhelming.  Well, it is if you don't know what to look for.  And since I'm in the midst of developing an online class about WiFi sniffing, I decided to whip up a shabby-looking 10 minute video that might help those who feel overwhelmed.




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Spectrum? It Damn Near Killed 'Em

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When I wrote a blog post recently extolling the virtues of WiFi protocol analysis, I expected some blowback.  Not because WiFi protocol analysis won't help performance (only a Garofalo-ian fool would assert that it won't), but because I touted protocol analysis at the expense of spectrum analysis.  

Well, it's time to make amends.  Spectrum analysis is pretty darned useful, too.  And the spectrum analyzer that I use (Metageek's WiSpy DBx with Chanalyzer) underwent a notable update in recent months.  Here, then, is an update on Chanalyzer and a reminder of what spectrum analyzers can be useful for.

For quite some time Metageek's spectrum analysis suite (consisting of the WiSpy USB adapter and the Chanalyzer software application) has been the thrifty man(and woman)'s tool of choice for analyzing WiFi frequencies.  The original Metageek WiSpy (a 2.4 GHz-only device without an external antenna interface) was a $100 (all prices in USD) USB adapter and the original Ch…