/r/signalidentification
Help with identifying radio signals.
Don't know what a signal is? Post here and we will help you identify it!
Please read the posting guidelines before submitting (you can find the guidelines when you click "Submit a new link" or "Submit a new text post").
RULES
- No "trolling" (you will be banned without warning).
- Do not be rude.
- Attacks, insults, etc. will be met with one warning. Another offence and you will be banned.
- Follow all site rules.
Recommended sites for audio/image/video/data files
Use audio/video/image hosting sites with direct playing capabilities - downloading should not be required for playback.
- Audio: vocaroo.com, ...
- Video: streamable.com, ...
- Images: imgur.com, ...
- Data (I/Q files, docs) etc: mega.nz, ... _____
Helpful Link(s)
Sub-Reddits
/r/signalidentification
15,703 Subscribers
Signal at around 220.4 and 221.3
23:05 UTC
is this the tiangong signal?
it appeared when Tiangong was passing by,
09:30 UTC
Is this repetive signal morse code?
Found lots of signals that sound like it but this was very repetitive and sounded lower in tone than some of the others.
20:06 UTC
Help with Signal 1 of 2
Tried to decide this using Multipsk (picture in second post) but just get jumbled letters. Could anyone help? Thanks as always.
19:30 UTC
Definitely sounds like voice
Cannot clean this up in any mode but it definitely sounds like voice. Anyone suggest what to try?
19:28 UTC
Just posting for interest
Received Bristol 19:25 on 29/01/25
19:23 UTC
Help with Signal 2/2
Picture of decoded data from previous video.
19:19 UTC
Eerie sounding signal
Hey all, got a lot more to explore with a new loop antenna. This sounds very eerie, could anyone help identify it. Is it a bundle of ft8 signals or something similar. Any help appreciated as always. Thanks
19:45 UTC
OTHR?
Received a few different sounding signals this evening I think I have picked some up before but not sure about this one, is it OTHR? Possibly Kontayner?
19:16 UTC
Some kind of packet radio bursts
Hey all, trying a new passive loop antenna and picking up a few new signals. This is from Bristol at 19:10 on 28/01. Is this Stanag or something else. Received packet radio before and the signal seems similar to that.
19:12 UTC
is it possible to receive signal from very old satellites? like the Vanguard 1 or others?
Hello everyone, I was wondering if it's possible to receive signal from old satelites on sdr sharp, using a dipole antenna, if so, is there a website with frequencies and time?
11:01 UTC
I am calling this "Unusual Side Band" as a placeholder. What is it.
Center around 467.2125 MHz. Steady carrier (if that's the right word) off-center at 467.2165 MHz makes it look vaguely like LSB. Signal lasts about two seconds. Repeats every 20 seconds. Width about 12 kHz. Listening on NFM each pulse is one high tone (maybe 300 Hz) followed by a low tone (sub 100 Hz buzz). Bee Bum. Bee Bum. Located in NYC/NJ area.
09:06 UTC
Is this RF jamming? I unfortunately live with conspiracy theorists, and they think all OTH radar is jamming, but I find it interesting that this is in a HAM band. Central USA 3:15Z 2025-1-28
03:30 UTC
Is this radar of some kind? 132.8 MHz just outside of Boston, MA, US
17:20 UTC
Weird signal around 8 Mhz
Could this be an OTH signal? It looks a bit different to a classic OTH signal.
23:15 UTC
Unid 903.1MHz
Now normally I would know what the signals are in my area but this one stumps me. There's two of these. This one being strong at 903.1 and the other at 917.7 I think.
21:09 UTC
Current 455mhz signal activity (follow up to previous post)
02:03 UTC
What is to the left and right?
What signal is the pulsing on the left and the solid red on the right? Can I decode it?
22:59 UTC
Unknown Signal on 466.230Mhz similar to POCSAG
I am trying to identify, and if possible decode, a signal on 466.230 and 466.075 Mhz.
The signal ist very strong an transmits every 60 seconds for a duration of 30 seconds.
Location is Germany. From my research the frequency is assigned to a pager service.
It sounds somewhat like POCSAG to me, but no decoding software is able to handle it.
Link to Audio:
Here
If anyone knows what it is, or could be, I would be very happy!
21:12 UTC
I think these are a triac dimmer's RFI but unsure
23:53 UTC
What type of paging is this?
22:52 UTC
13.56 Mhz
Evening all, picking this up in Avonmouth tonight at 19:38. Is this interference or something a bit more interesting. Having a look through SigWiki as well but not sure.
19:39 UTC
A better video of that 455 mhz "blip"
00:09 UTC
Massive ~130khz ISM signal
04:45 UTC
Anyone adept at Audio Forensics?
23:54 UTC
Does anyone know what this is? Received in Chester, UK.
19:34 UTC
Strange signal at HF band
12:51 UTC
DDH47 (test)
19:18 UTC
Any idea what this signal at 32 Mhz might be?
I use AM modulation with a bandwidth of about 5 khz to attempt to demodulate this signal. This audio pulses
12:45 UTC