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Messages - Dr. Amp

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HF Mystery Signals / Re: 7182-7196 kHz -- digital or radar?
« on: February 25, 2024, 0027 UTC »
And now it's gone... it was there for quite a while before I posted.  (The beeps on 7200L are still there.)

HF Mystery Signals / 7182-7196 kHz -- digital or radar?
« on: February 25, 2024, 0017 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.

Latin American Pirate / UNID 6934.8 AM 0058 UTC 15 JAN 2024
« on: January 15, 2024, 0100 UTC »
Very weak, currently playing "The Old Man Down The Road" by John Fogerty

23:29 "Boys Don't Cry" by The Cure, power level has dropped several times but recovered

Other / Re: UNID 6830 USB 2324 UTC 17 OCT 2023
« on: October 31, 2023, 2312 UTC »
Tonight the frequency is presenting a perfectly normal, albeit apparently encrypted, RTTY signal. 

In parallel, but much weaker, on 6880 AM.

sign on, Monster Mash, then talking, then Zombies

6861 kHz, waterfall art, "MRI" and bat logo

2315 UTC, art off, audio bandwidth now 11kHz, wonderful sound!

Huge signal, S9+, started at 8kHz wide now jumped to 10kHz.

2307 UTC, "Radio Illuminati, I'm your host, the Azimuth Coordinator"

Other / Re: UNID 6830 USB 2324 UTC 17 OCT 2023
« on: October 27, 2023, 2351 UTC »
This is back right now on 6831, it sounds like bad SSTV or WEFAX.  It's S9 in central Pennsylvania, so I'm doubting it's from Russia.

WEFAX and SSTV / Valparaiso 17144.35 WEFAX 2312 UTC 09 SEP 2023
« on: September 09, 2023, 0051 UTC »
This shares a frequency (nominally) with New Orleans, but the fact they're a bit off, and the charts bear no resemblance to each other, gives it away instantly.  Usually when it's propagating up here to Pennsylvania, New Orleans isn't.

0010Z ID over Big Audio Dynamite's "E Equals M C Squared"

Huge signal but you're drifting all over the place.

Yeah, that's what I'm seeing.  If I knew how to upload a picture, I would've.

I've seen the big hump many times and read somewhere that that's what it was.  But I've never seen the narrow signals. 

Are there any theories about why they're using such an odd, multi-part signal?

This is S9+ at my location, and I've never seen it before.  The closest thing to it on the sigidwiki visually is CLOVER2000, but it's listed as being 2kHz wide and these signals are both 4kHz wide (unless of course they're each two transmissions immediately adjacent, but it doesn't sound like the samples on the wiki.)

It's making a barber-pole pattern on the waterfall.  Is there something wrong with the modulation, or is it on top of some digital ute?  I've seen a pattern like that before.

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