[Lowfer] Dead of the night signal enhancement

[Dick Goodman]

	Over the last several years of monitoring signals on L.F. I've noticed that
the reception seems to always be the best about halfway between midnight and
dawn. For the last 2 nights, I've plotted the signal strength of AM740 (740
KHz) and WWV on 10 MHz. I saw a definite enhancement of signal strength in
that time period. I'm going to run this for a few more nights to see if it
is  repeatable.

	http://mysite.verizon.net/wa3usg/AM740.jpg
	http://mysite.verizon.net/wa3usg/WWV10.jpg


	I had forgotten that I even had the software to do this. It's a Strip Chart
program called "RadioSkyPipe" available from Radio Sky Publishing (there is
a free version there):

	http://www.radiosky.com/skypipeishere.html
	http://www.radiosky.com/

	It's a pretty flexible program. It's getting its input from a 12 bit A/D
converter plugged into my parallel printer port. The analog end of the
converter is connected to the S-meter in my old Kenwood R2000. You can also
configure the software to use any input to your soundcard (or the output of
your soundcard) as input instead of an outboard A/D converter. Radio Sky
Publishing offers the A/D converter in kit form that will  plug into a
parallel printer port. They also offer one that plugs into a USB port. This
system won't detect really weak signals (eg QRSS) but it's cool for plotting
signals that are stronger.

Happy Thanksgiving!

Dick, WA3USG
Mechanicsburg, PA.
FN10LE