Yes, Bob, W7AVK sent along this link: http://www.cvni.net/radio/nsnl/nsnl032/nsnl32mx.html
That info has never been confirmed as far as I know and they've been around for half a century according to some reports. Of course, the simple explanation is probably the right explanation: a propagation beacon that tells various stations which frequencies to use at a given time. Station "F" that's now on 7039.24 is supposed to be Vladivostok which fits with the signal being heard on the west coast of the USA at this time. So I'll retract my use of "plausible" and instead say that I've yet to hear a confirmed explanation. Jack's right: the ones near the QRP freq on 40 are a darned nuisance. Ron AC7AC -----Original Message----- They're Russian military stations. I don't know what they are used for, but they show up at various places at various times. Fred K6DGW Auburn CA CM98lw Ron D'Eau Claire wrote: > They're quite audible in N.W. Oregon this A.M. too. > > These "letter stations" turn up from time to time all over the > spectrum. I've yet to hear a plausible explanation. > > Ron AC7AC > > -----Original Message----- > Subject: [Elecraft] OT: LETTER F ON 7.39 WITH LETTER M [EMAIL PROTECTED] > > > Does anyone know what/who this is? It is making a mess of the QRP > calling frequency.. > > > > Jack, AE6GC > _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com