Questions tagged [gnu-radio]

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0answers
25 views

How to replay a signal on a different frequency with Gnu Radio Companion and Hack RF

I captured the traffic of a remote control for a LED light. I have multiple of those LED Lights. The payload seems to be the same for each device but the frequency(channel) differs. For one LED light ...
3
votes
0answers
95 views

Recovering data from mystery signal

I was scanning the airwaves using my RTL-SDR and found a signal being broadcast locally that I was able to receive. When I configure the SDR Console V3 software to NFM, I get the following audio. (Wav ...
4
votes
2answers
288 views

Need help in figuring out checksum used in this small wireless packet

Need help in figuring out the checksum used for this small data packet. Packet is 48 bits long, I already have figured out most of the bits. Least 8 bits change even if there is a single bit change in ...
7
votes
4answers
4k views

System for reverse engineering RF signals

Lately I've been experimenting with software-defined radio (SDR) and have come up with some heuristics by which I can visually identify certain kinds of signals by looking at their representation on a ...
17
votes
2answers
13k views

Intercepting GSM communications with an USRP and Gnu Radio

I would like to know what is needed to intercept GSM communications with an USRP (Universal Software Radio Peripheral) and using Gnu Radio. Is there tutorial about that ? What type of USRP is ...