3 ms·
Once upon a time, a receiver would actually need to hop. But I wonder if one can build a decent receiver for a scheme like this using SDR (e.g. a direct RF sam
by amluto 3y ago
Once upon a time, a receiver would actually need to hop. But I wonder if one can build a decent receiver for a scheme like this using SDR (e.g. a direct RF sampling receiver and some DSP. (The Xilinx RFSoC series looks like it could do this without coming close to breaking a sweat.). In the absence of jamming, I wouldn’t be surprised if a system like HAVEQUICK could be decoded without the key.
(In the presence of jamming, the dynamic range of the receiver could matter.)
- CobaltFire 3y agoIt 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.
- ancientworldnow 3y agoDecoding HAVE QUICK doesn't help you when the transmissions are still encrypted though.