UNID 690 AM Pittsburgh PA what is this? 26 FEB 2024 Pirate or not?

[Mick Boyle]

I have listened to this station on a Pittsburgh SDR. I tried finding it online. I don't know what kind of station it is. It doesn't seem to have any station IDs or commercial breaks. Is it a pirate or unlicensed station? I thought I would see if anyone else can find out what it is. Thanks. Also, I think it is stereo.
I just heard a voice identifying it at 1800 UTC "AM 690 Underground Stereo"

[n2avh]

See thread at https://www.radiodiscussions.com/threads/690-pirate.752947/. Might be a Part 15 in which case the receiver must be super close to the transmitter, or they're going beyond Part 15 which I did way back in high school 45 years ago!

[ThaDood]

That's Boomer's WAG690, his AM Carrier-Current Station. Running 5W carrier from used LPB, Inc., gear, and home-brewed the C-QUAM AM Stereo side. Now, since you heard that, can you get the 1620kHz AM Part 15 station that's about 2 miles away from. Even Boomer, doesn't know who that is.

[Mick Boyle]

Thanks ThaDood,

You got it. I have exchanged a few emails with Boomer and it is just what you said. I will try to hear 1620 next. Mystery solved.

That's Boomer's WAG690, his AM Carrier-Current Station. Running 5W carrier from used LPB, Inc., gear, and home-brewed the C-QUAM AM Stereo side. Now, since you heard that, can you get the 1620kHz AM Part 15 station that's about 2 miles away from. Even Boomer, doesn't know who that is.