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Messages - Token

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1
HF Mystery Signals / Re: 13100 +/- Khz mystery signal
« on: March 31, 2024, 2139 UTC »
Recording?  Screenshot?

What you are describing is pretty open to interpretation.  Since you posted I have left a receiver on the frequency, so far have not heard the signal.

T!

2
Utility / Re: USAF HFGCS message at 20 MHz?
« on: March 30, 2024, 0319 UTC »
Nice find, wish I had recorded it.

Sounds faked / pirate / hoax to me.  In addition to all the reasons ~SIGINT~ points out, it just sounds wrong and forced.  And the voice is synthetic, something you don't find on HFGCS.

And that leads me to why I wish I had recorded it.  I have lots of faked / hoax signals in my recordings, but never faked HFGCS traffic.

T!

3
HF Mystery Signals / Re: What kind of OTH radar could this be..
« on: March 29, 2024, 1849 UTC »
This is not an OTHR.

I don't know what it is, specifically, but for a variety of reasons (features of or missing from the signal) I know it is almost certainly not a radar.  Or if it is (since almost any signal can be) a radar it is an extraordinarily poorly designed one.  I suspect it is data of some kind, but to get a better handle on what it is would require a different recording, preferably an IQ recording or an audio recording in FM or SSB (I prefer USB) that captures both "carriers" and everything between them.

T!

5
HF Mystery Signals / Re: 7182-7196 kHz -- digital or radar?
« on: February 29, 2024, 0801 UTC »
Not sure what this is -- it sounds different, and looks more fine-grained, than radars I've heard before, but I'm no expert.

Also, on 7200 LSB, there's a continuous beep-beep in the background.  I know this frequency is heavily QRMed, but this sounds very similar to ALE to me.

Without recordings, date and time in UTC, or a bit more description, there is no way to know what you are describing.

As for the radar, a bit before you posted this the Russian 29B6 radar was on that frequency.  However I don't know how long before you posted this you heard what you heard and it was not on that freq at the time this was posted.

T!

6
Cupid is about S7 into the Mojave Desert of California today.

Long time no hear.

T!

7
Heard the Testing announcement, and flipped the source over to the house sound system.  Not super strong into the Mojave Desert tonight, S 7 or so, but perfectly usable.

T!

13
HF Mystery Signals / MOVED: 6660 LSB 17 SEPT 2023
« on: September 21, 2023, 1425 UTC »

14
Equipment / Re: Made in China Wellbrook 1530 Loop Antenna?
« on: July 06, 2023, 1834 UTC »
Anyone notice the OIP2 and OIP3 numbers on that site?  I may just be a bit of a skeptic, but I don't think that thing is doing anything but sparking at the stated "90 dBm" (1 million Watts).

T!

15
Utility / Re: Civilian aircraft on 11175 kHz USB, twice
« on: April 17, 2023, 1213 UTC »
United 1948 called mainsail on 11175 on the evening of the 16th as well.

Got a time for that?

T!

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