We Have two repeaters at one location using two antennas and 2 duplexers, but because of the high-powered UHF paging TX we got too much desense on the top antenna for receive so we split to make the top TX only and the lower RX only. We had 2 micor stations with 2 TX/RX duplexers. By retuning the notches and then combining the RX cavities from each duplexer to the lower antenna and combing the output of the TX cavities to the top antenna we ended up with an excellent system. However if you are running a station that doesn't already have a circulator (it's integral in the micor 70 watt stations, one of ours was a 250 watt micor, so we added a circulator to the output) you will need to add the circulators to avoid mixing in the amps between the two transmitters.
Gregg R. Lengling, W9DHI, Retired Administrator http://www.milwaukeehdtv.org K2/100 S#3075 KX1 S# 57 Politics is the art of appearing candid and completely open, while concealing as much as possible. -States: The Bene Gesserit View -----Original Message----- From: n1ofj [mailto:[EMAIL PROTECTED] Sent: Friday, December 19, 2003 9:40 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] use of Bp/Br duplexer as 2 channel combiner Has anyone ever used a Bandpass/reject duplexer as a transmit combiner. As an example, using one port set up as a pass on Frequency A, reject on frequency B, and the other port to reject frequency A and pass Frequency B? Any thoughts on this would be appreciated. Thanks, Dave N1OFJ Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
