6 can duplexor won't tune smoothly, generates RX noise... Lightning hit, Yep, its probably flashed over on one of the first cans from the ant, you might have carbon tracks and a twisted/melted cap. Also inspect your connectors, Ts and the coax itsself as a possible source of noise after a lightning hit also.
Difficult to tune, if the interconnect coax is supposed to be 1/4 wave length, or multiples, 1/2 3/4... What worked good at 160mhz, will not work good at 146 mhz. Been there, done that! It will do something, but you will have high insertion loss, and your deepest notch for best rx sensitivity will not be real deep. You will not get best performance until you get the correct length coax between cans. Somebody suggested removing the bad can, and running 2+3. That might work if your tx is clean, and you arent trying to run high watts, if the other cans are ok, and coax is tuned right. Try it, it won't cost you anything cept time and some additional hair loss from scratching your head. 73 Ed N3SDO
