At 11:42 PM 8/5/2004 -0000, you wrote: >REAL EASY, It's not hard. You haven't seen many BpBr Duplexers have >you?
<---Actually, I've seen tons of Batwing ones, Sinclair, even ol' Celwave ones. Even the newer Wacom ones (now RxTx) have cavities in series, not parallel. The pass is tuned with the plunger (inthe center) and the notch is tuned with the Rod (not plexiglass). The RF is applied at the connector (one end of the internal loop) the other end of the loop has a "cap to ground" adjusted by changing the dielectric of the "cap" by adjusting the "rod". That's how it works in a very very simplestic exp. <---Thanks for the explanation. It must have to do with the propagation mode to/from the cavity. It took awhile to wrap my head around a bandpass cavity being in parallel with the feed and not in series with it. Ken ------------------------------------------------------------------------------ President and CTO - Arcom Communications Makers of state-of-the-art repeater controllers and accessories. http://www.ah6le.net/arcom/index.html 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/
