Your 2.5 MHz experience is partly because of hills and partly because of
poor soil conductivity. Same phenomenon affects the AM broadcast band in
the daytime. In the midwest and along the seacoast the ground-wave
low-frequency propagation is much better than in Colorado.
Lloyd Rasmussen, Kensington, MD
http://lras.home.sprynet.com
-----Original Message-----
From: Phil Scovell
Sent: Saturday, April 19, 2014 1:09 AM
To: [log in to unmask]
Subject: WWV From Colorado
Denver is about 50 to 60 miles from WWV and there are lots of hills between
here and Fort Collins where the antennas are. During the day, you would
normally think that their 2.5 signal would be booming into Denver but most
days, from noon to about 3 PM local, I can't copy them strong enough to hear
the voice announcement. I can here the carrier, of course, but some days I
just can bearly hear them on 2.5 MHz. The 5.0 frequency is fair during the
afternoon but some nights is 40 over and a few times this winter, I copied
the actual female voice of WWVH in Hawaii on 5.0 as it transmits on the same
frequency. She makes the announcement before the voice out of the Fort
Collins stations begins to talk and I have copied her over the WWV carrier
often over the years. The same is true on 10.0 and 15.0 MHz. I copied the
carrier and her the voice in the noise on 20.0 and 25.0 but the one I copy
the best, being so close, is the 5.0 MHz as I said. In 1992 with my 2
element 40 meter beam at 70 feet, some mornings I copied WWVH on 5.0 at 40
over S9. In other times, I have copied, how be it a handful of time, WWVH
on the 2.5 MHz frequency, too, but that has been pretty rare. As I recall,
most of those times were back in the mid to late seventies. I sure miss
hearing the time and condition levels given in CW like it was back then,
too. I've never been able to copy the atomic clock signals down there in
the 50 to 60 to 70 Hz range but of course I'm not using any kind of super
long wire, say 500 miles long, at that low frequency range, haha.
Phil.
K0NX
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