Robert, Motorola sold a gazillion 100 watt UHF Micor repeater stations equipped with the T-1500 series duplexers, and many of them are still working just fine today. I'm curious: What is prompting you to replace your existing duplexer? Is your repeater an original Micor, or some other brand? I ask these questions because I don't see the justification to spend nearly two thousand bucks, if no real improvement results.
One option you might explore is the addition of a bandpass-only cavity on each side of your existing duplexer, or at least one on the transmit side to clean up any sideband noise from the PA. Some aftermarket PAs are remarkably trashy, and a bandpass cavity can do wonders to improve the station operation- especially if receiver desensing is being caused by transmitter noise that falls on the receive frequency. 73, Eric Lemmon WB6FLY -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of georgiaskywarn Sent: Saturday, November 29, 2008 5:59 AM To: [email protected] Subject: [Repeater-Builder] Suggestions on UHF - TXRX BP/BR dups Getting ready to purchase a TXRX dups for my UHF repeater. Repeater will be running about 100watts into the dup.s. Will be buying new. Suggestions on model numbers to look for? Is the TX/RX brand what I need to be looking at (for the best BP/BR dup.s)? Currently running the Moto series 1500 (BP/BR). Thanks, Robert KD4YDC
