I am not sure why people responded privately on this topic. But here is my reply:
All methods can be used. The "hard phase reversal" with equal lengths of coax works (in my experience) however it makes the DC component "shorted" and can mess up switching options. The properly cut 180 deg additional phase lag coax works better (especially if its low loss coax) since there is no DC short introduced, The "phase box" works, and is a necessity in my opinion for anything but 180 and in phase solutions, but is not a simple build - test project to work as designed. My 160M phased T top verticals have simple switching for - both in phase - both 180 out of phase - and just the rear antenna (which is not fully omni directional because of passive interaction). All switched with a simple relay box I made. That gives enough patterns to play with to find one that works in most situations. The 180 out of phase is "end fire" towards EU. Ed N1UR _________________ Topband Reflector Archives - http://www.contesting.com/_topband