[TowerTalk] 80 meter quad loops
donovanf at starpower.net
Fri Nov 4 09:25:18 EST 2005
I have a similar system, four 2-element quads, 50 meters high,
at azimuths of 45, 150, 225 and 290 degrees. I also lengthen
the reflectors by adding wire to move them down the CW band.
At one time I had planned to install relays to add inductance to
switch the reflectors from SSB to CW, but I never implemented
it because of concerns about lightning induced relay failures.
Later, I discovered that the quads work very well on SSB when
the reflectors are set for CW, but the converse is not true. So I
leave them set for CW except for a few weekends each year.
My amplifiers (monoband 3-1000Z) easily handle the high
VSWR on SSB when the quads are set to CW; however, there
are many solutions to this problem if your amplifiers are
sensitive to high VSWR.
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