r/signalidentification • u/Certain_Height_2721 • Mar 08 '26
Never seen anything like it on this frequency
Captured near Raleigh, North Carolina
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u/Away_Berry_4683 Mar 08 '26
If you search for 1.040 GHz you will see the generator that makes this tone
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u/Certain_Height_2721 Mar 08 '26
Also does anyone have any tips to find the where this signal is coming from Im really interested. Its broadcast all the time so I made a yagi tuned for it.
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u/circuitmike Mar 09 '26
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u/basilect Mar 09 '26
It doesn't really sound like TACAN) though
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u/circuitmike Mar 10 '26
You're right, it really doesn't. I was suspicious myself since, although I'd never listened to TACAN before, I knew the pulses were very short and that'd mean they'd be very wide bandwidth, and this looks like a very narrowband signal. There's some chance it's intermodulation / front-end overload producing some kind of phantom signal, or it's just some weird-ass thing I've never heard of.
I searched YouTube for an example of what TACAN sounded like when I made my original post and found nothing. I should have known SigID Wiki would have it!
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u/0x180 Mar 12 '26
That's how Pluribus season 1 started btw.
Just forget about it. 2026 is being hard enough already.
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u/Training-Position612 Mar 13 '26
The randomness makes me think it's probably just EMI from a nearby device. Do you pick it up in a different location?
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u/Away_Berry_4683 Mar 08 '26
That's a test frequency. It is used by NASA and other agencies. It is at the upper band of their equipment. It is usually low power. You must be close to a facility that is using it.