/r/signalidentification

Photograph via snooOG

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").


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Sub-Reddits

/r/RTLSDR

/r/amateurradio

/r/shortwave

/r/signalidentification

13,310 Subscribers

8

Is this a mobile network?

Picked this up in Bristo UKl tonight 12/12/24. Still new and trying to find info on sigWiki but work in progress. Find things that look close but not quite sure. Thanks for the support.

7 Comments
2024/11/12
22:24 UTC

8

Signal identification

Could anyone advise what this is, received in Hampshire UK on 136.82 MHz. Have powered down devices but signal remains, can't see anything on Signal Wiki on air and frequencies that looks like this.

10 Comments
2024/11/10
14:51 UTC

14

Mobile Network??

Hi there, receiving this very strong signal this evening in Gravesend UK at 18:45. Is this a mobile network at this frequency or something else. Is there anything that can be done with this (not decoding calls texts ) but identifying the network or something?

10 Comments
2024/11/06
19:06 UTC

3

Identify Signal

Found another signal I haven't seen before usually don't find much between 250 and 350 MHz except a load of TETRA but found this tonight in Gravesend UK. Anyone know what this might be?

1 Comment
2024/11/05
21:23 UTC

5

Interference?

Picked this up tonight in the UK at 20:04. Having a few hours to see what's out there. Have tried a few different modes but not getting anything recognisable. Is this just interference?

4 Comments
2024/11/05
20:06 UTC

6

Musical Tones

Hey there, picked this up in Gravesend UK tonight 05/11/24. Not heard anything like this before, could anyone assist with identifying this? Thanks

6 Comments
2024/11/05
18:46 UTC

9

Any idea what this could be?

That little chirp between 445.28-445.32MHz.

I would be also interested in those lines little higher. There are .001MHz bands, 8 of them they are what seems to be empty carriers, and together they change slowly like a binary counter.

4 Comments
2024/11/04
20:25 UTC

23

Curious what this is. Started within the last 24h or so. 466M. South Hampshire, UK

9 Comments
2024/11/01
11:02 UTC

3

Interference - Where to start?

4 Comments
2024/11/01
01:13 UTC

2

Tetrapol?

A few weeks ago several carriers appeared that seem to be tetrapol, but I'm not sure since I can't find any information about tetrapol on 800mhz.

There are other Tetrapol carriers on 390 Mhz but I don't think they are harmonics of these. I'm in Mexico City.

2 Comments
2024/10/31
23:52 UTC

3

CW at 174.2 kHz

There is a stream of morse code on this frequency. Approximately one letter every 7 second. And the morse code is long way from perfect even though it is easily read.

Anyone know what this signal is, who sends it and the purpose of it? Is it some sort of number station?

7 Comments
2024/10/31
17:10 UTC

25

Need help identifying a signal.

19 Comments
2024/10/31
15:57 UTC

0

7983.33hz

What is this frequency from?

3 Comments
2024/10/30
18:27 UTC

25

I was playing around trying to see what all I could pick up and I came across this.

For reference I'm in southern Arizona in the middle of nowhere. It almost sounds like it's the audio to a TV channel because there's ads mixed in, is that possible? If nothing else, could someone tell me what that frequency is supposed to be used for?

23 Comments
2024/10/29
05:16 UTC

7

Unknown Signal at 26.9 MHz In Kastoria Greece SZ2RCK OpenWebRX+

1 Comment
2024/10/27
07:12 UTC

15

Picked this up while scanning 2m

2 Comments
2024/10/24
08:27 UTC

16

71,9 MHz signal

Eastern Europe, Roumanie

6 Comments
2024/10/24
02:12 UTC

8

60 MHz wideband signal

Eastern Europe, Roumanie

1 Comment
2024/10/24
02:11 UTC

3

What radio station is this?

9 Comments
2024/10/23
14:37 UTC

5

Help identifying this beeping

Very new to this. Unfortunately didn't get a video capture, I just hit record on SDRConnect

7.098Mhz AM - Brisbane, Australia.

https://whyp.it/tracks/218128/sdrconnect-audio-20241020-215821-7098000hz?token=667Y7

Thank you!

5 Comments
2024/10/20
20:34 UTC

7

I see this during the day, it is not constant, some kind of pager?

6 Comments
2024/10/18
15:06 UTC

7

help identifying this (Location: Spokane Washington)

4 Comments
2024/10/15
18:24 UTC

4

Help with identifying signals

Hey all, scanning through some frequencies tonight and in the 500 MHz region, small movements in the frequency display variations in noise floor and look like some kind of signal. The signal is fairly wide but not there until the frequency selection is in a specific spot. Is this just the noise floor moving up or down?

3 Comments
2024/10/15
18:03 UTC

7

What could cause this RFI?

8 Comments
2024/10/14
19:43 UTC

4

Captured in the area of Seattle, WA, USA. 453.7875MHz.

2 Comments
2024/10/10
18:02 UTC

17

what are these things that show up on my waterfall?

27 Comments
2024/10/10
15:29 UTC

2

Why is it like this?

Ive got an SDRV4, and an antenna connected (terminated with PL connection). whenever I tighten the connection between the Antenna and the SDR, theres noticable signal loss, and when I loosen it all the signals and some interference came back.

any Idea why its like this? and how to prevent it? Thanks

https://reddit.com/link/1fyyhgl/video/wrhckwnczitd1/player

10 Comments
2024/10/08
12:23 UTC

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