At 02:59 PM 12/19/2005 -0800, you wrote: >I have been pulling my hair out (I don't have that much more to go) over an >old Celwave 6 cavity 526-4 pass reject duplexer. I can get the notches to >tune properly one by one but when I put it all back together it just does >not seem to sum out right. Is there a procedure someone can point me to? > >Also, I am curious if I need to use the same high frequency and low >frequency ports which would be the opposite for ham radio out here, or if I >need to keep the transmitter port for the transmitter and the receiver for >the receiver.
<---Yes, you want to keep the same frequency relationship between the hipass and lowpass ports. In other words, if it was Tx high and Rx low before and that's upside down from your needs, you'd connect your Rx to the Tx port and your Tx to the Rx port. Also, it sounds like you made the common mistake of cavity tuning, in that you didn't guarantee a 50 ohm load at each port (you didn't say HOW you tuned 'em but I suspect you didn't use 50 ohm pads on both ports when you did). Ken ------------------------------------------------------------------------------ President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html We offer complete Kenwood TKR repeater packages! We are now an authorized Telewave Dealer! AH6LE/R - IRLP Node 3000 http://www.irlp.net 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/
