(1550 WQCD/1580 WWCD SPUR) 1717.68 AM 0300 UTC 22 NOV 2023

[Kilokat7]

Edit 11/23/23: After a second night of hearing this I've finally identified the source of the programming as coming from AM 1580 WWCD "CD 92.9", an alternative rock station in Columbus, Ohio with an FM translator on 92.9.  1580 WWCD programming is parallel to 1550 WQCD in Delaware, OH.  I'm guessing this is some sort of spur or mixing product.

This math may explain it: 1717.68-1580=137.68 kHz & 1717.68-1550=167.68 kHz, 167.68-137.68=30 kHz which of course is the difference between 1580 kHz & 1550 kHz.

This thread can probably be moved.

Very faint music heard on my overnight SDR recording right at the noise floor, carrier measuring 1717.6784 @ 0302 UTC.  This station appeared to be on for several hours but much too weak to discern music genre or much of anything else.  Anyone else catch it?

[ChrisSmolinski]

Looking at my SDR recordings (the usual way), I could not see anything at all, not even a weak carrier.

So I ran them through Carrier Sleuth, and sure enough I found this super weak carrier, which matches the frequency you report. Looks like it was on all night.

[Kilokat7]

Thanks for the sanity check, Chris.  Further review of my recordings only yielded small bits of music, which was still going when I stopped my recording at 1200 UTC.

[Kilokat7]

This one is being heard again tonight and just as weak as last night with occasional audio peaks rising above the noise floor.