At 10/7/2008 03:03, you wrote: >With the tee connector split and the TX side going into a dummy load, >there is no desense. If I reconnect the tee and go to the -8920, the >desense is back.
Make sure there's an isolator on the TX. I've seen severe desense using a perfectly good, tuned duplexer because the TX didn't "like" the high reactance at the notch frequency, causing a lot of broadband noise to come out of the PA. If the 8920 is full duplex, I'd try a dummy load on a coupler or sampler instead just to make sure there isn't something inside it that's generating the noise. Bob NO6B