I'll give this a try, Ron. Thanks! Mark - N9WYS
-----Original Message----- From: Repeater-Builder@yahoogroups.com On Behalf Of Ron Wright Mark, Some verification of the duplexer tuning can be done with 2 HTs, one with an S meter. Simply use one HT on low power, 0.1 W, transmit thru the duplexer to the other HT with S-meter both tuned to what one wants the notch and again at the pass freqs. You can get some idea if the notch is tuned. Having a good attenuator can aid in this. Also direct HT to HT with attneuator, at least 50 db, for reference could be used. I've used this for tuning duplexers although not the preferred method. With the going back and forth with this issue at least one can get some sort of handle on the tuning of the duplexer. If you have better equipment use it, but sounds as if you do not and the dual HT approach will give you something. 73, ron, n9ee/r ps do not wish to drive directly the .1 W into the HT for receive obviously.
