This is why it is best to put about 1-2 db 50 ohm pad between the duplexer and the receiver, to help keep the receive side at 50 ohm.
------ Original Message ------ Received: Sun, 29 Jun 2008 10:35:15 PM PDT From: [EMAIL PROTECTED] SNIP > Maybe a dB or two at most. I claim that once you take that duplexer off > the spectrum analyzer/tracking gen. & install it in your system, the actual > isolation may very well change more than that due to notch pulling from the > non-50 ohm TX, RX and/or antenna. So all your efforts of squeezing every > last fraction of a dB out of the duplexer notches are for naught. SNIP
