kb2vxa said:Hi Mike and all,
Just what do you intend to do with that mess? While that's cooking on the back burner let's take a closer look at the splitter and combiner. Have you noticed they're exactly the same electrically? Have you noticed the similarity to an ordinary CATV signal splitter? Aparantly not or that's what you would have come up with. That's right, only the connectors are different and in any case quite unsuitable.
With the exception of active multicouplers the passive ones work as combiners as well, RF flows both ways. Nope, amplifiers work one way only unless they're special bidirectional CATV repeaters or distribution amps.
I went that route to disaster, several UHF and some VHF signals went WAY down when I combined an 800MHz antenna with the existing one. What you need is a diplexer which is a low pass and a high pass filter back to back having a crossover point of 700MHz. That's it in brief, no point in going through it all again when you can find several of my posts regarding my success with it.