> Hey everyone,
> Thought about this yesterday...would it be possible to use a
> conventional pass/reject duplexer to combine two UHF
> transmitters into a
> single antenna?
>
> Example:
> Transmitter A is 453Mhz
> Transmitter B is 443Mhz
Yes. Assuming the duplexer provides sufficient isolation to keep IM
products tamed down, it will work fine. A good UHF pass/reject duplexer
will give you 80 to 100 dB of isolation, which should be plenty. Just be
sure to measure the IM products to be sure.
Most UHF pass/reject duplexers won't have a problem doing the 10 MHz spread.
--- Jeff WN3A
