When you operated on split antennas... did you have any type of filtering on the separated transmitter and receiver antenna lines... ie a band pass cavity?
If you take an ohm meter and measure your duplexer cavity ports... do you get a true "hard" dc ground? You might just say what type of duplexer you have... make and model. Last but not least... do you have another receiver to try in place of the current unit? s. > "Jeff Lehmann" <[EMAIL PROTECTED]> wrote: > I have taken the amplifier out of line and had the > same results. I've also taken the duplexer out > completely, and run the RX on the top antenna, and > TX on the bottom. I thought for a while that this > solved the problem, but it ended coming back eventually. > There was quite a bit of desense in this configuration > obviously, so the feedback probably just wasn't strong > enough to overcome it, for a while. > > I don't have a circulator in line. > > 73 > Jeff N1ZZN > > > If you've got the patience... drop the transmitter down to > > the exciter only power and see if you can reproduce the > > problem at any time. > > > > Do you have a circulator on the power amplifier's output? > >
