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 _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
