I have a set of sinclair Q202GR and a set of Q202G on 2m and they work great. I wouldn't take anything for them. My company sells a lot or Telewave TPRD-1554 cans, but the sinclairs seem to be much better. My guess is size has a lot to do with it. One of the sinclair sets I have has the trimmer caps for the notch. The other two sets I have are the kinds with the clear plastic rods you slide in and out for the notch. Excellent units! 73 de N5NPO
----- Original Message ----- From: [email protected] <[email protected]> To: [email protected] <[email protected]> Sent: Sat Jun 27 21:29:46 2009 Subject: RE: [Repeater-Builder] Help with Duplexer Ron, If you really have a Q202G (I'm guessing that "Q020G" was a typo) cavity set, they are not bandpass. What suggests that they are bandpass? The standard Q202G BpBr duplexer has only one loop per can, and a blank plate is installed where a second loop would be. A tiny threaded cap next to each loop connector covers the notch adjustment. Be aware that a Q202G duplexer that was in commercial service will probably have the high-split harness that measures about 12" between the centers of each tee, and will not tune down to the 2m band. The harness drawing is found here: <www.repeater-builder.com/sinclair/sinclair-q202-g-cable-harness.pdf> 73, Eric Lemmon WB6FLY -----Original Message----- From: [email protected] <mailto:Repeater-Builder%40yahoogroups.com> [mailto:[email protected] <mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of n4sfu Sent: Saturday, June 27, 2009 7:13 PM To: [email protected] <mailto:Repeater-Builder%40yahoogroups.com> Subject: [Repeater-Builder] Help with Duplexer I dont usually post on the forum but rcv the emails everyday and follow all posts. I recently purchased a 4 can set of Sinclair Q020G cavities not knowing until I had them tuned and connected to the MSR2000 that they are Bandpass only. Needless to say that desense will not permit the rcv of weak signals at all say 5 miles away. Does anyone know of a good place to acquire a couple of the notch cavities with the cables to go with this set or of a good set of BP/BR cavities at a reasonable price to complete this repeater installation. We are located in South GA and are locating this repeaer on 146.715 mhz. All help is appreciated. Ron/N4SFU
