Spectrum Analyzer to Hunt Wireless VoIP Interference

WLAN is using the unlicensed frequency bands, which are shared among numerous applications including some cordless phones. In this article, Cognio's Spectrum Expert frequency analyzer is tested in action by Mike Outmesguine, the president and founder of TransStellar Inc. (and the author of the book I had the chance to look at, "Wi-Fi Toys - 15 Cool Wireless Projects For Home, Office, and Entertainment").

Outmesguine examined his Wi-Fi network and observed a slowdown when multiple cordless phones were turned on. As they were fighting for the same spectrum with Wi-Fi, the speed of the connection decreased. Spectrum analyzer showed the increased power coming from the phones. The speed was restored once the phones were turned off.

Read the article here