It sounds like what you have is a transmitter combiner. In other words, multiple transmitters can be connected to a single antenna. This is not a duplexer. It may be possible to reconfigure the cavities into a duplexer for your repeater, but it is not an easy task.
73, Joe, K1ike tahrens301 wrote: > Hi Folks, > > Anybody heard of one of these? > > It came out of a repeater on 154.xx. > > It has a total of 8 cavities, 4 of which > have an additional 'T' which has a 15 1/2" > stub made of RG-9. It's shorted at the end > (braid to center conductor). > > The other 4 do not have this additional T. > > Any ideas on how to tune these guys? Do I need > to modify the length of the stub? > > (its going on 147.1) > > thanks, > > Tim >
