Make a multi-coupler out of a stick of hardline, take your ports every 1/4 electrical wavelength using a 3-5 pf cap, seal everything with copper tape or aluminum autobody shop tape - hold back the flames on the aluminum please this is not going to be flexed like tower feedline.
nu5o wrote: > > Good evening. I have some TxRx bandpass filters that we are using > in a 450-470 tower top preamp system. The system will be installed > on a new tower soon and we are trying to figure out a way to get 3 > windows instead of 2 out of the bandpass filter so we can add 448- > 449.5 Receive on the amplified downfeed to the 2 commercial windows. > > Has anyone done this and if so, what equipment and/or configuration > did you use? With high gain antennas at great HAAT and with tower > top preamps, we just hate not to use it on the 440 ham band. > > Thanks, > > Andy NU5O/P29AM > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ -- 73...Clark Beckman N8PZD Pursuant to U.S. Code, title 47, Chapter 5, Subchapter II, ß227, "Any and all nonsolicited commercial E-mail sent to this address is subject to a download and archival fee of $500.00 U.S.". E-mailing denotes acceptance of these terms. Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/