Bruce,
One common method of combining two receivers is to use a coax tee at the
antenna feedline and 1/4 wave pieces of 75 ohm coax from the tee to each
receiver. This can be expanded to four receivers using six pieces of 75 ohm
coax, but probably isn't worth the effort.
If the received signal levels are high enough just about any splitter
will work. I have used the four-way CATV splitters with no problems other
than F connectors can be a PITA. The fact that these are designed for 75
ohms has little impact on using them this way.
Mini Circuits has many different models of splitter/combiners available.
Regular UHF receive multicouplers show up on ebay from time to time.
They usually have some sort of bandpass filter and medium gain, low noise
preamp installed to make up for splitter losses and provide a degree of
frequency pre-selection. This type of setup would be your ideal solution.
FWIW, I know of at least one commercial site where four UHF receivers
are just connected with random pieces of 50 ohm coax to a splitter made from
three N type tees. This has worked for them for several years. YMMV.
73,
Al, K9SI
> Date: Tue, 02 Aug 2005 20:02:25 -0000
> From: "brucenanney" <[EMAIL PROTECTED]>
> Subject: Rx Combiner
>
> Anybody got a good idea for building a combiner for UHF receivers.
> Need to put 4 Rx on one antenna. Thanks, Bruce.
>
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