RE: [SPAM] - Re: [Repeater-Builder] Duplexer Question - Email found in subject

[Kevin Bednar]

Title: Duplexer Question

Thanks. I found the problem. Bad N connector on the TX cable which was also causing the desense. I upped the power to 100 watts into the duplexer and get 80 out the antenna port which is within spec, and now have no desense! :)   Kevin From: Steve Grantham [mailto:[EMAIL PROTECTED] Sent: Friday, October 15, 2004 11:45 AM To: Repeater-Builder@yahoogroups.com Subject: [SPAM] - Re: [Repeater-Builder] Duplexer Question - Email found in subject Your insertion loss may be a little high.  It is under 3.0 dB, but is over 1.5 dB.  (80, 40, 20...)  Unless I am mistaken, your power out of the duplexer should be a tad over 60W to meet specs.   Steve ----- Original Message ----- From: Kevin Bednar To: Repeater-Builder@yahoogroups.com Sent: Friday, October 15, 2004 10:27 AM Subject: [Repeater-Builder] Duplexer Question Hey all, quick question about a 2 meter repeater I just put up for testing. I'm putting out about 80 watts from the PA into the duplexer, but only getting about 55 watts out of the antenna port on the duplexer. This seems kind of high to me. The specs of the duplexer are: Power handling - 150 watts (Im running half that) Min seperation - 1.5 Mhz (I'm running 2.55Mhz offset) Isolation at min sep - 90db (the plot I was sent with the duplexer shows better than 105db on both sides because of the wider spread) TX and RX loss at my seperation - approx 1.2db I'm also having some desense when the PA gets keyed, but I'm not sure if it’s the duplexer or a cabling issue yet. Have to do some further research. The duplexer came tuned from the factory on my freqs, and it’s a six cavity, BPBR type from Fiplex so I cant see it being a duplexer issue. Any input is greatly appreciated. TIA to all. Kevin K2KMB 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 the Yahoo! Terms of Service.