Topband: PHASING SHUNT FED TOWERS

[Tom W8JI]

I have a system with two gamma matched towers that works pretty well.  I
did all I could to make them appear to be similar.  The gamma dimensions
and capacitance are identical - and I used a loading wire on top of one of
them  - making it longer and longer until the match was similar.>>>

Results are heavily dependent on the particular gamma match system and tower 
resonance, because the gamma acts not only as a transformer, but as a 
transmission line. Sometimes, through luck, it works. Sometimes it does not 
work at all.

The key in all of this are current phase and current levels in the towers.