Hi Andy, You can do it in a number of ways, the first being a simple divider. to 2, 4 or x number of output ports (with coresponding "loss")
You can parallel filter window networks with simple coaxial diplex dividers, but adding the third or more windows really starts to cause problems in an example 445-450, 455-460 and 465-470 system. You start to fight interaction ripples in the response and it becomes a pain. You can have them custom made. I just engineered one for a repeater site and the windows were over $1300. But it works killer... I have yet to see a tower top amplifier filter network that can survive a lightning hit. cheers skipp skipp025 at yahoo.com > "nu5o" <[EMAIL PROTECTED]> 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/
