RE: [Repeater-Builder] question about combiners

[Steve S. Bosshard \(NU5D\)]

When the 2 channels are around 2 to 2.5 mhz apart it is pretty easy to use 2 duplexers, BpBr tuned to pass normally, but the reject is set normal on one cavity, and to reject the second repeater tx, or rx on the second cavity.   If the two channels are 200 khz or less apart then a single duplexer tuned mid band, and a hybrid combiner on the transmitters, and a splitter on the receivers works pretty good not withstanding hybrid loss.   At 850 khz it is a little more difficult.  This combination might take 2 BpBr duplexers plus a third cavity on the receive half of each duplexer.  May take some cut and try with a tracking generator.   Good luck,   Steve Nu5d   Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.