Thanks to everyone who responded. In the meantime, I had left a phone
message with the engineer for the local Clear Channel office, who turns
out to be a ham, and he confirmed this morning that power-down is
controlled by a PC based on the table of average sunrise-sunset times
for this location. That saves them having to determine exactly when
sunrise and sunset occur, and requires changing only once a month. The
current time is 6:30 EDT, or 5:30 EST. I had misread the table, and as
someone said, their night power is indeed 6 watts. Wonder if they
really are doing that, because their signal here is still 40 over S9 at
night. Days, it buries the S-meter.
73, Pete N4ZR
The World Contest Station Database, updated daily at www.conteststations.com
The Reverse Beacon Network at http://reversebeacon.net, blog at
reversebeacon.blogspot.com,
spots at telnet.reversebeacon.net, port 7000
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UR RST IS ... ... ..9 QSB QSB - hw? BK
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