On 9/15/2013 7:04 AM, Tom W8JI wrote:
WLW shared the frequency with other stations, I believe one in Canada.
I'm pretty sure that is why they had to use a directional pattern at
night. Throughout a long history, WLW shared (and time shared) channels.
WLW was NOT directional then, and is not directional now. They had
then, and still have now, a primary tower that is 189.3 electrical
degrees, and a standby tower that is 87.8 electrical degrees.
http://transition.fcc.gov/fcc-bin/amq?list=0&facid=29733.
A frequency search for 700 kHz shows some high power night time licenses
in AB and NB. I don't remember if those licenses existed before the
downgrade the Clear Channel concept, which I think happened sometime in
the 70s or early 80s.
You may be confusing WLW with WCKY on 1530 kHz, which was then and is
now, ND daytime, DA at night. I remember it as four towers in line.
Their primary protection is KFBK in Sacramento.
73, Jim K9YC
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Topband Reflector
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