It can get you the operating spectrum recording, but given the noisy environments HQ operates in, and the fact that secondary and tertiary transmissions are par

It can get you the operating spectrum recording, but given the noisy environments HQ operates in, and the fact that secondary and tertiary transmissions are part of the obfuscation… it get very hard to get at the encrypted signal to even start decrypting it. Source: Worked with HQ as an operator and technician in the military, and tried exactly what you describe using a commercial SDR on signals from my base.