Yes, the Telegesis solutions are nice, well engineered products.
Notice though, they promote Wi-Spy on their web site http://www.telegesis.com/telegesis_z...rt_/wi-spy.htm for the very reasons that i mentioned.
There is nothing better than visualising the environment that you are working in, to better understand what your wireless link is 'seeing'.
Rememeber the zigbee prodcuts and wifi products only look at the spectrum on a per channel basis....its what they cannot see thats important!
So its worth remebering that there is a low cost solution for Spectrum analysis should you need it.
I also recall that in Circuit celler there was a 2.4ghz analyser project, so its quite feasable to build one if you are working in that area a lot.
The Circuitcellar hardwrae, PBPro and a 128x64 GLCD make a great portable spectrum analyser with better than per channel resolution.
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