Gnack..
I know you can appreciate the problems. In addition, all my off-the-shelf
modulators seem to "lose their signal into the noise" and need periodic
rebooting (off/on) to refresh their output......strange...?? (overload?
impedance mismatch?..??? bad design?)
So my quest will continue for that elusive modulator.

I know one day they'll appear at some hamfests, and for reasonable
prices..........................(but I'm hoping someone in China is making a
home version at this moment)

Les



I see it looks like you really need a bunch of now obsolete MATV parts
like tunable mixers to keep sidebands suppressed and an antenna trap for
the channel 3 signal. Toobad you don't know someone who is replacing a
bunch of hotel systems that you could get the head end parts from

Without a fairly large investment it's hard to actually combine signals
through a simple splitter.

Though you can homebrew your own sideband traps fairly easily if you have
a well stocked junk box. tunable channel 3 traps are very simple just a
few turns of wire and a trimmer capacitor.

Likely somewhere they do make digital modulators but I would not want to
even think of buying one since I would guess they are currently in the
domain of broadcast equipment and we all know how inflated those prices
are.

Gnack