Hackrf measurements
From Hamspirit wiki
13cm
frequency: 2320.0 if_gain: 47dB rf_gain: 14dB
power out: 34mW
if_gain: 47dB rf_gain: 0dB
power out: 2.6mW
* remember toggle rf_gain from 0 to 14 to 0 to activate due to driver error (in osmocom, grc?)