Fred, I can confirm your bearing on this from central PA is also on a NW/SE line. It's currently 2345 UTC (6:45pm ELT) and the signal's strength varies from very strong to barely there. While the carrier doesn't seem to follow a set pattern, watching it for a while shows one - the carrier seems to slowly climb to a maximum frequency of around 1040.34, then slowly fall to a minimum of around 1040.2, then do a quick reverse and start to climb again. Here's a copy of the image from a screenshot:
http://www.radiodxing.com/images/1040%20khz%202354%20UTC%202-1-2010.jpg That inflection point at the minimum is very pronounced each cycle. I don' t know enough about AM transmitters to know what it might indicate, but maybe others can detect something useful from it. <http://www.radiodxing.com/images/1040%20khz%202354%20UTC%202-1-2010.jpg> I can't hear any audio but will check back at various times of the day to see if I can make anything out. Brett Saylor Central PA Quantum QX Pro loop On Wed, Jan 27, 2010 at 11:08 PM, Fred Schroyer <fredi...@windstream.net>wrote: > Driving home a couple of weeks ago, I noticed a strange het on 1040. Its > pitch rose & fell very slowly (spanning a couple of musical notes over a > minute), through roughly an octave either side of middle C (in other words, > maybe a hundred Hz up to several hundred), with no apparent pattern, just a > gradual rising and falling. Kinda like a very, very slow moaning. The > aimless frequency drift reminds me of an old tube oscillator with poor > voltage regulation and no temperature compensation! _______________________________________________ IRCA mailing list IRCA@hard-core-dx.com 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: irca@hard-core-dx.com
