Should not your circulator be on the transmit side before the duplexer? All of mine are. 73 Russ, W3CH
----- Original Message ----- From: "Andy Hearn" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Thursday, October 07, 2004 1:07 PM Subject: [Repeater-Builder] Re Circulator > > > HI > I have just changed my 70 cm repeater antenna over to a co-linear 8 > dBd gain, was running 2 full wave dipoles stacked (reason..antenna > faults and not able to mount with correct vertical spacing). > > When I was calibrating the circulator on the bench, all set up > perfectly, with the receive port being sharp in its setting. > > On site since the antenna was running a slightly higher VSWR > compared to a dummy load (1.2:1), I thought it might be an idea to > just tweak the receive port to optimise the rejection. However I > found the tuning to be very flat, question, is this normal or am I > missing something? > 73 > Andy G3UEQ > > > > > > > > > > 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/
