The LONGWAVE MESSAGE BOARD
Re: 279 AM carrier


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Posted by Bruce WA1HGJ on September 09, 2026 at 17:34:30.

In Reply to: 279 AM carrier posted by Marcy on September 08, 2026 at 00:13:27.

Marcy, there is an NDB on 279 kHz, callsign CQX, at the Chatham (MA) Airport out on the elbow of Cape Cod. I can often hear it here north of Boston, and seems likely that on a good night you might hear it as well on LI. It’s Morse ID’d as CQX with code sidebands +/- 1.02 kHz. Next time you hear the 279 carrier, listen up or down 1 kHz on 278 or 280 kHz. You may hear the weak coded ID sidebands. Many nights I’ll just hear the weak carrier but on good nights I’ll capture the IDs as well.
73, Bruce WA1HGJ

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