Artie, not sure I can picture the block diagram, but it's common to use a cavity or attenuator between the preamp and the receiver front end to avoid overload.
73, Paul, AE4KR ----- Original Message ----- From: k2aau To: Repeater-Builder@yahoogroups.com Sent: Tuesday, August 18, 2009 8:47 PM Subject: [Repeater-Builder] ENHANCED RECEIVE I have heard of repeater owners using pre-amps on the receive side of the duplexer and adding 1 pass-reject cavity after the preamp and placing a pre-amp on the pass reject cavity to enhance more receive. Does this work or is it a myth? Artie k2aau