I'm sure it can be made to go. It would help if you told us what the duplexer is - i.e. a full quarter-wave style, or is it the shortened helical resonator type? I didn't come up with that model on their website.
If it's a full quarter-wave style, the plunger may have run up inside the fixed portion of the center rod. Chuck WB2EDV ----- Original Message ----- From: Com/Rad Inc To: [email protected] Sent: Saturday, September 26, 2009 11:14 AM Subject: [Repeater-Builder] 6M Sinclair Duplexer We have a Sinclair 2H-30-3R6C duplexer which tops out at approxiamtely 51.8 Mhz on the high notch... Anyone ever create a "fix" to get this up another 1 or 1.5 Mhz ? This looks like a cavity shrinking exercise Ed Folta K9QPJ
