I have a quarter-wave vertical for 40m on a steeply sloped lot, at about 100m AGL, 300m horizontally from the ocean. It currently has a relatively poor radial field (more are in the works, of course); I use it entirely as a multiband receive antenna, not for TX. A second fan-vertical element is connected to the same feedpoint, configured as an inverted-L for 80m, which I do use for TX, but rarely. It's resonant on both 40 and 80, and works on 160 at low power with an in-shack tuner.
Downhill, toward the ocean, is also the direction to EU and JA. On sloped land like this, is a second vertical director-like element downhill, below the first one likely to work (it would have to be limited to 10.5m height above ground)? If so, would it buy me much? EZNEC suggests a slight improvement is possible, but modelling this kind of system has been problematic for me in the past, so I'm not confident of the results. Are there other alternatives I should consider for increased gain on 40, 80 and/or 160? The horizontal space I have available above ground is very limited, so things like an FCP or a K9AY loop are too big. I could make room for a BOG or Beverage, but the longest run would be about 50m, and it's not really in the right direction. 73, Rick ZL2HAM / ZM1G _________________ Topband Reflector