It'll be about 26 watts into the cans. Not sure what the receiver sensitivity is at this point. Once I get everything as it should be, I'll do a benchmark test for the repeater records so I'll have something to compare against.
We've got a similar set of cans on our 6.85 machine and they do a good job, so I'm pretty confident these will be alright, once I learn what I'm doing! Mike WM4B From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Ralph Mowery Sent: Saturday, July 19, 2008 10:05 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Duplexer Tuning / Desense Get rid of the rg-8x and get some double shielded cable. Even a couple of feet of single shielded cable can cause much desense. Depending on the sensitivity and power level, a 4 cavity duplexer is just barley enough for a 600 KHz spacing on 2 meters. --- On Fri, 7/18/08, Mike Besemer (WM4B) <[EMAIL PROTECTED]> wrote: From: Mike Besemer (WM4B) <[EMAIL PROTECTED]> Subject: [Repeater-Builder] Duplexer Tuning / Desense To: Repeater-Builder@yahoogroups.com Date: Friday, July 18, 2008, 10:33 PM most from your Repeater System?, and the one thing I need to do yet is check for internal desense. I had to replace the Teflon-type cable which leads from the Mark IV transmitter to the back panel, and when I replaced it, all I had was some RG-8X. I?m (sort of) hoping that?s the problem, but I won?t know until I check. I can?t see where I?ve missed anything obvious, although tuning these types of duplexers is new to me. I spent 17 years in the Air Force working navigation and comm gear, so I?m pretty well versed in what I?m doing, but since this is a new venture for me, I?m certainly open to suggestions. I?ll check for internal desense tomorrow, but in the meantime if anybody has anything to add, please chime in.
<<image001.jpg>>
<<image002.jpg>>
