Questions tagged [radio-interception]
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12 questions
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433MHz Protocol: Unknown Three-Symbol-Encoding within the OOK data
Reverse engineering the protocol of a remote-controlled wall socket (433MHz On-Off-Keying) revealed an embedded pattern which apparently uses three symbols (besides 0s).
Symbol A = 000001
Symbol B = ...
- 143
2
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1
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Identifying the logic in remote control data packets
I have a set of 4 power sockets that can be turned on and off with an RF remote.
That remote has 4 pairs of on/off buttons along with a master pair that can control all sockets at once.
Initially, the ...
- 141
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There is an implant in me, is there a way to identify the frequency it is receiving signals on?
There is an implant in me, is there a way to identify the frequency it is receiving signals on?
I don't want to share the evidence and my reasoning for believing there is an implant in me, you can ...
2
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0
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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 ...
- 121
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Decipher hexadecimal GPS coordinates from UDP message
I'm trying to get the GPS lat/long data from a UDP message. It's captured on a radio dispatch console on a P25 radio system, if that helps.
I captured this UDP message when I sent a simulated ...
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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 ...
- 31
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Need help with a PiWM encoding question
I am working on reverse engineering a signal that I am fairly certain is a PiWM encoding.
I think I have figured it out, but the data seems to be gibberish so I am looking for some help to confirm ...
- 21
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1k
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Radio Signal 433.92MHz ASK OOK modulation, encoding?
Considering a key fob for RKE (remote keyless entry, automotive) its signal has been captured:
It sends at 433,92MHz simple on/off.
Following I regard the deltas (time differences between on-off or ...
- 31
3
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1
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562
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Interact with a 868,95 MHz device
I've got a device that measures the heat in my apartment and sends the data to a master every day. It works on 868,95 MHz frequency. I want to be able to read this data. I've got some basic in Arduino,...
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4
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5k
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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 ...
- 2,521
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Which instrument is effective in discovering carrier frequency?
If two devices have wireless interconnection, how to detect carrier frequency?
Range may vary in all radio, from FM, GSM to Wi-Fi and WiMax. Which tools are effective for doing this? Which one is ...
17
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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 ...
- 19.2k