Satellite spectrum

Here’s a first try at plotting the output of usrp_spectrum_sense.py
data, using 256 wxPython gauges to cover 500Mhz:

http://musicriver.homeunix.com:8737/satmon_1.jpg

That’s G10R horizontal, the beacon at 11701 is clear on the left, 11270,
11800, etc.

The idea is to have something to monitor a satellite in near real time
for news uplink transponders which appear and disappear.