Robert, There is nothing wrong with the T-1504 series duplexer if it if properly tuned and adjusted, and unless you have money to throw away to bolster our sagging economy you arn't going to accomplish a lot in the process. I just retuned a set of 1504A's the other day for 443/448.325 and got 80 DB of isolation from each side, with an insertion loss less then 1.5 DB.
Interconnect cables are easy to make for the 1504's and the service manual indicates the proper length of each cable for the freq. range you want to tune to. It's a lot easier and less expensive to add additional cans for greater isolation or filtering to the duplexer you have then puchase a brand new duplexer. Let me know if you need some help with this and I'll see if I can work something out with you about getting together after the Holidays. Doug (in Jasper, Ga.) N3DAB/WPRX486/WPJL709 ---- georgiaskywarn <[EMAIL PROTECTED]> wrote: ============= 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

