[Discuss-gnuradio] Spectral Survey with GRC?

[Bruce E. Kahn]

Hi GRC companions

Has anyone used GRC to acquire a large range RF spectral survey? 
Basically, step from range to range, and save the output in a (text) 
file. I would like to be able to average each frequency/range for some 
(variable) period of time, or do peak hold, much like some of the nice 
FFT sinks do. I have been doing this in Python with a modification of 
osmocom_spectrum_sense, but I would rather use GRC since it is more 
intuitive. I just need a starting point, and particularly how to save to 
file, and time average. This seems like it would be pretty 
straightforward, but I haven't seen it done anywhere (with GRC).

A little background. I am working on a research project on ambient RF 
energy harvesting (using printed metamaterial antennas). I recently got 
a HackRF One to help understand the ambient RF energy present and 
correlate it with energy harvesting performance.

Thanks in advance!


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