Hi folks, Just a bit of an update... got the 6 cavity Telewave duplexer tweaked up - looks like it pretty much hit the specs in the data sheet.
With a dummy load at the 'antenna' port, I used an "iso-tee" to inject a signal at both the receiver input, and between the antenna port & the dummy load. With a weak signal, both places showed me that there was no desense. Very weak signal would hold in the repeater. However, putting the system on the antenna (a 150-160 mhz DB-224 100' horizontally & 10' vertically separated) through a metal building fed with 7/8 heliax, there seems to be no end to the desense! The wattmeter shows 30 watts forward & 3 watts reflected at the antenna port, if my math serves, it's less than 2:1. Can the less than 1:1 match be the culprit? Thanks, Tim W5FN
