Just got another BDA for indoor cell repeater, formerly AT&T it is on 864 MHz cell B band (now like band 15?) Nice parts are a couple 24 cavity duplexers, one for up and the other for downlink. No guess as to the amp power, a couple or few watts. Won't know more until I get my tracking generator up and working, then see how far I can push the duplexers. Keep me busy a while if nothing.