Homemade low power TV transmitter?

[ChrisW6ATV]

Originally Posted by ohohyodafarted

Specific question for Chris, I will need some sort of combiner, I was thinking of a 6 in 1 out passive combiner spliter, but I am not well versed on this sort of thing. Will this approach work? And how many sets would I be able to power on the outpout of the combiner?

Bob-

The Blonder-Tongue ZHC-12 mentioned by kbmuri, and I would guess the Holland combiner too, is made for just the purpose you describe (and that several of us seem to be planning here as well). What I do not know is if an ordinary splitter as sold for home use will work OK as a combiner with the relatively high signal levels of these commercial modulators. You certainly got a good combination of modulators (3,6,8,10,12), since it is best to skip channels when you can. As others noted, you may be starting with enough signal to split into 16 or more outputs without adding an amplifier; ultimately, just hook it all up and see what you get. Weak signals will be snowy of course; too strong/overloaded signals will usually have herringbone or diagonal lines and maybe ghost-looking/extra sync bars in the video.