On Feb 6, 2005, at 3:08 PM, K3BU@aol.com wrote:
In a message dated 2/6/2005 9:57:54 AM Eastern Standard Time,
k7fm@teleport.com writes:
I used to wonder how come I could use a tri-band beam, advertised at
8 db
gain, and an amplifier advertised at 1500 watts and yet be 15 db down
from
other local stations who were using 3 element mono-banders. Since the
power
limit is 1500 watts, they would naturally have been running the same
power
as me.
This non-linear ionospheric amplification must therefore have been the
explanation. I had been puzzled for years. They obviously lived in
such a
duct, while I did not.<<
Yuri -- Perhaps they had a special antenna tuner that had a 7.5v. 75A
fil xfmr?
...
Richard L. Measures, AG6K, 805.386.3734. www.somis.org
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