RE: [Repeater-Builder] use of Bp/Br duplexer as 2 channel combiner

[Gregg Lengling]

Not if you are using BpBr filters to start out with.     Gregg R. Lengling, W9DHI, Retired Administrator http://www.milwaukeehdtv.org K2/100 S#3075 KX1 S# 57 Politics is the art of appearing candid and completely open, while concealing as much as possible.   -States: The Bene Gesserit View -----Original Message----- From: David Malicki [mailto:[EMAIL PROTECTED] Sent: Friday, December 19, 2003 10:57 AM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] use of Bp/Br duplexer as 2 channel combiner   Okay....I would assume that it would be necessary to add Babdpass filters additionally after the circulators >From: "Gregg Lengling" <[EMAIL PROTECTED]> >Reply-To: Repeater-Builder@yahoogroups.com >To: >Subject: RE: [Repeater-Builder] use of Bp/Br duplexer as 2 channel combiner >Date: Fri, 19 Dec 2003 10:44:58 -0600 >MIME-Version: 1.0 >X-Sender: [EMAIL PROTECTED] >Received: from n8.grp.scd.yahoo.com ([66.218.66.92]) by mc7-f8.hotmail.com with Microsoft SMTPSVC(5.0.2195.6713); Fri, 19 Dec 2003 08:45:30 -0800 >Received: from [66.218.67.200] by n8.grp.scd.yahoo.com with NNFMP; 19 Dec 2003 16:45:09 -0000 >Received: (qmail 4972 invoked from network); 19 Dec 2003 16:45:08 -0000 >Received: from unknown (66.218.66.217)  by m8.grp.scd.yahoo.com with QMQP; 19 Dec 2003 16:45:08 -0000 >Received: from unknown (HELO smtp811.mail.sc5.yahoo.com) (66.163.170.81)  by mta2.grp.scd.yahoo.com with SMTP; 19 Dec 2003 16:45:08 -0000 >Received: from unknown (HELO DESK) ([EMAIL PROTECTED]@68.21.198.123 with login)  by smtp811.mail.sc5.yahoo.com with SMTP; 19 Dec 2003 16:45:08 -0000 >X-Message-Info: JGTYoYF78jHcTHAzELJgqmt+KOAfstCk >X-eGroups-Return: [EMAIL PROTECTED] >X-Apparently-To: Repeater-Builder@yahoogroups.com >Message-ID: <[EMAIL PROTECTED]> >X-MSMail-Priority: Normal >X-Mailer: Microsoft Outlook, Build 10.0.4510 >X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 >In-Reply-To: <[EMAIL PROTECTED]> >X-eGroups-Remote-IP: 66.163.170.81 >X-Yahoo-Profile: glengling >Mailing-List: list Repeater-Builder@yahoogroups.com; contact [EMAIL PROTECTED] >Delivered-To: mailing list Repeater-Builder@yahoogroups.com >Precedence: bulk >List-Unsubscribe: >Return-Path: [EMAIL PROTECTED] >X-OriginalArrivalTime: 19 Dec 2003 16:45:30.0453 (UTC) FILETIME=[8353D050:01C3C64F] > >We Have two repeaters at one location using two antennas and 2 duplexers, >but because of the high-powered UHF paging TX we got too much desense on the >top antenna for receive so we split to make the top TX only and the lower RX >only.  We had 2 micor stations with 2 TX/RX duplexers.  By retuning the >notches and then combining the RX cavities from each duplexer to the lower >antenna and combing the output of the TX cavities to the top antenna we >ended up with an excellent system.  However if you are running a station >that doesn't already have a circulator (it's integral in the micor 70 watt >stations, one of ours was a 250 watt micor, so we added a circulator to the >output) you will need to add the circulators to avoid mixing in the amps >between the two transmitters. > > >Gregg R. Lengling, W9DHI, Retired >Administrator http://www.milwaukeehdtv.org >K2/100 S#3075 KX1 S# 57 >Politics is the art of appearing candid and completely open, while >concealing as much as possible.   -States: The Bene Gesserit View > > > >-----Original Message----- >From: n1ofj [mailto:[EMAIL PROTECTED] >Sent: Friday, December 19, 2003 9:40 AM >To: Repeater-Builder@yahoogroups.com >Subject: [Repeater-Builder] use of Bp/Br duplexer as 2 channel combiner > >Has anyone ever used a Bandpass/reject duplexer as a transmit >combiner. As an example, using one port set up as a pass on Frequency >A, reject on frequency B, and the other port to reject frequency A >and pass Frequency B?  Any thoughts on this would be appreciated. >Thanks, >Dave N1OFJ > > > > > > > >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/ > > > > > > > > >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/ > > Make your home warm and cozy this winter with tips from MSN House & Home. 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. 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.