One is tempted to assume major US stations are the ones exactly on-frequency, but not necessarily. Each could be off to one side or the other, and the XE opposite.
By ear I can sometimes decide whether a station is low or hi if I can isolate it and by stepping 10 kHz on the DX-398, with BFO at default offset, detect a slightly higher or lower pitch compared to several adjacent frequencies. But 1 or 3 Hz is not really enough difference, for me, anyway. Get up to 10 Hz or more and there is a noticeable difference. But still this is all relative rather than absolute.. Glenn -------------------------------------------- On Thu, 10/24/13, Bob Young <[email protected]> wrote: Subject: RE: [NRC-AM] Mostly Mexican MW DX to Enid OK, October 18-24, 2013 To: "NRC list" <[email protected]>, "IRCA" <[email protected]>, "[email protected]" <[email protected]> Date: Thursday, October 24, 2013, 10:37 AM Glenn, I like your method of calculating the offses, haha! Now the question is, are they high or low? Bob Young KB1OKL > Date: Thu, 24 Oct 2013 08:08:30 -0700 > From: [email protected] > > > ** MEXICO. 700, Oct 21 at 1159 UT, music right across hourtop, no NA, 1203 finally ID as ``La Poderosa`` and again at 1205, more music. Making SAH of 76/minute = 1.27 Hz with WLW roughly opposite. So XEGD in Hidalgo del Parral, Chihuahua has decided to modulate with something other than hum as 24 hours ago (Glenn Hauser, OK, DX LISTENING DIGEST) > > ** MEXICO. 720, Oct 18 at 0457 UT, full ID for XHDE FM 105.7 & XEDE AM, 0458 NA, mixing WGN with SAH of 192/minute = 3.2 Hz. No sign of the real KSAH at the moment. Cantú: > 720 XEDE La Kaliente + FM 105.7 Saltillo, Coah. 8,000 250 > Kudos to XEDE for holding its own with 250 watts vs 50,000 (Glenn Hauser, OK, DX LISTENING DIGEST) > > _______________________________________________ IRCA mailing list [email protected] http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: [email protected]
