Just What The Wi-Fi Doctor Ordered: AirMedic
Well it's about time someone did this. First there was nothing. Then the Cadillac of Laptop-based spectrum analyzers came along: Cognio...to this day, still unrivaled. Then Cisco scarfed up Cognio and the honeymoon between cash-strapped users and a bleeding-edge startup ended... You want Spectrum Analysis, you pay. Not unexpected of course.
Then those same self-funded users turned to the low-end alternative: MetaGeek's Wi-Spy. For 10% of the price of Cisco's Spectrum Expert, you too can have very basic spectrum analysis in the 2.4 GHz band only. What was that? Oh yes, that's right..."you get what you pay for." Rats. If 'basic' and '2.4 GHz-only' will do ya, then you're all set with Wi-Spy. But what if you need more but can't shell out $4k/license? Well, you are just stuck. Grrr.