Jim, there is one notable exception to your statement. In the older Sinclair Q202G duplexers, the cable from the can to the first tee is part of the tuned circuit. If that length is not right, the sliding dialectric notch tuning will not work. In moving some 170 mHz duplexers down to the 146 mHz region, I had to lengthen that cable on each can by 2 inches, from 10.5 to 12.5. The notch would not tune till that was done.
73 - Jim W5ZIT -----Original Message----- From: [EMAIL PROTECTED] To: [email protected] Sent: Tue, 2 Jan 2007 2:19 PM Subject: Re: [Repeater-Builder] Cavity Filter advice Jim wrote: If the cavities are tuned correctly, and have no internal issues, those cables lengths are irrelevant, except for losses. If the length _is_ a factor, then either the cavities are tuned wrong, or they have a problem. -- Jim Barbour WD8CHL ________________________________________________________________________ Check Out the new free AIM(R) Mail -- 2 GB of storage and industry-leading spam and email virus protection.
