I have built a Vhf engineering 440 repeater from an old kit. Now I am looking for a duplexer. I bought a set of Sinclair notch duplexers. The original marking were for 461 and 466. They provide enough rejection for the system to work but I am not satisfied with the performance. Has anyone tried the vertex duplexer? How well do they work. Are they band pass/notch or notch only. If they will work then the price is good. Of course I would prefer some 4 can Bp/Br duplexers but have not yet found any. Also has anyone used and of the Motorola or Ge mobile duplexers? Tnx fer help
jimmy
