I hope I'm not posting in the wrong place, but have done some research and need a little guidance.
After a few successful projects I am trying something new (at least for me).
I know very little about radio signals / cell signals / frequencies etc. but would like to create a "detector" for these signals.
I do not want to trace, sniff, communicate or anything - merely have my arduino light up an LED once any signal is detected across a broad spectrum.
A few things to note after research:
-This will be in the Arizona desert - so no or very little interference
-I'd like to pick up a walkie talkie or a cell phone - maybe only when it's in use?
-I do not want to record location of signal
-trying to maximize detection range. I'm thinking anenna(s) of 1-2' length?
Anyways, any direction would be great!
Thanks in advance.