I would guess that the resulting impedance mismatch would mess with the current nodes somewhat... In order to acheive peak effeciency, you really want to stay on the odd numbered 1/4 wave current nodes. Not really sure what the effect on velocity of propagation would be.. you will definately need that bit of information to cut the length properly.
I strongly suggest sticking with 50 ohm high quality cable. I have found that the little details are what will kill an effort regarding this project.. The series resonant notch is very sensitive, so it doesn't take much of a change to wander from resonance... and you need every dB you can wring out of this design. If I get a chance, I will look into it.. I think I have some RG6 around here... the foil may become an issue as well over time. Just not real sure. 73 Mike K5JMP www.k5jmp.us -----Original Message----- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of Robin Midgett Sent: Thursday, April 20, 2006 7:11 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] 6m heliax duplexer experiment Good show Mike! Q: What would be the effect of using high quality 75 ohm cable (say double shielded RG-6) for the interconnect cables? At 03:05 PM 4/20/2006, you wrote: >OK folks... have done a minor re-write of the duplexer page with a bunch of >updated data.. >www.k5jmp.us >look for the duplexer link on the left-hand side.. > >moderators, and webmasters of RBTIP heads-up... the URL has changes as >well.. > > 73 >Mike Perryman >www.k5jmp.us > > > > > > > >Yahoo! Groups Links > > > > Thanks, Robin Midgett K4IDC 615-322-5836 office - rolls to pager 615-835-7699 pager 615-301-1642 home [EMAIL PROTECTED] http://www.people.vanderbilt.edu/~robin.midgett/index.htm Yahoo! Groups Links Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
