I can't speak to verticals spaced that tightly but I can speak to dipoles spaced that tightly. I have 2 phased half wave dipoles spaced 1/8 apart and fed 180 degs out of phase. I get nice gain (looks like a solid S unit or ~5db as expected from on the air tests). But the bandwidth has to be managed. The 2:1 BW is no more than 125khz. No issue on CW when I use my CW stub setting but a definite issue going from 3850 down to 3600 in an SSB contest.
And additionally, the impedance is very difficult to match. I have used open wire line feeders and found the 50 Ohm matching point to tap off - I believe about 3/8 wave down the feed line for each element. The impedance changes significantly as you shift frequency. I have opted to use a remote tuner at the connection point of the 2 feeders to get full band SSB coverage which works slick. The verticals will present different impedances than the dipoles, but I would think the complexity of the 1/8 wave separation and phasing would be a similar bronco to ride. By the way it's a "kick @#s" antenna to EU. I often get "loudest USA station" reports when running in a SSB DX contest. 73 Ed N1UR _________________ Topband Reflector Archives - http://www.contesting.com/_topband
