Have been experimenting with BOG antennas. They are cranky to get going.
They have a velocity factor of +- .5
When mine was too long, I was hearing an LU station and everything else was
30 db down. I shortened it twice ending up at .5 it started acting
somewhat like a Beverage. If "way too long" the antenna can reverse
direction.
It had a strange reactance bump at 4.5 MHZ and found it was caused by an
old, in ground, iron water pipe from some bygone era. Sweeping frequencies
to get the correct termination, I found that the dew on the grass caused a
some shift.
Ground conductivity may be a known value, but in some locations it can vary
along the length of an antenna.
A preamp is a must as the gain is low.
A standard Beverage antenna is a poor transmitting antenna. The on ground
Beverage would be very poor for transmitting. Talk about ground losses.
Anyone can not have too many receive antennas. Found I could copy a DX
station on the BOG with an approaching thunderstorm when there was no copy
on other antennas that included standard Beverages.
Bruce-K1FZ
Does the panel think hocus pocus,or is there some truth in the design.
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UR RST IS ... ... ..9 QSB QSB - hw? BK
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