HI Scott, Yes, I've seen and dealt with them before.The isolation isn 't the greatest, we had a few in public safety systems years ago, the only way to get good duplexing was to add a pass cavity in the rx and TX.( We ran about 1mhz. spacings) They are actually DB Products private labeled with the Big "M" on it. There is an article on repeater Builder about them..... Lance Alfieri N2HBA ----- Original Message ----- From: Scott Zimmerman To: Repeater Builder List Sent: Wednesday, January 09, 2008 2:50 PM Subject: [Repeater-Builder] Mot? Lo-Band duplexers
Anyone seen a set of these before? Any documentation available? Can they be used on 6M? I have never seen this type of duplexer They are marked with 37.98 as a frequency. The open port on the tees kinda makes me wonder. These are not mine. I can't lay hands on them personally. I am posting this for a friend, and out of general curiosity. Scott . Scott Zimmerman Amateur Radio Call N3XCC 612 Barnett Rd Boswell, PA 15531
