Gang,
I have an 80-ft tower topped by an KT34XA (elements insulated from 32-ft
boom) and 40-2CD (only reflector electrically connected to 22-ft boom). I
have 8 x 50-ft lengths of 4-ft wide welded, galvanized steel fence for a
ground screen. No other radials.
I have successfully matched this on 160 with about 350-pF series capacitor
to a 45-ft #12 gamma wire spaced about 3-ft from the tower.
I also want to feed the tower on 80. I have been hoping that the 160 gamma
wire would "disappear" electrically when it is open-circuited. Given the
complex configuratino of the GAP vertical antennas, this may be but a faint
hope. I'm having trouble creating a good match on 80 with a simple gamma
feed scheme.
Has anyone on the reflector tried to feed the same tower on two bands?
Please reply off-reflector.
Thanks and 73,
Brian K1LI
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UR RST IS ... ... ..9 QSB QSB - hw? BK
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