TV Tuner in reverse?
James Knott
james.knott-bJEeYj9oJeDQT0dZR+AlfA at public.gmane.org
Thu Sep 2 16:39:47 UTC 2010
William Park wrote:
> Hi,
>
> TV tuner will decoded ATSC signal from RG-6 input and record it to local
> harddisk.
> Is there a way to do in reverse? That is, send a recorded TV program into RG-6
> coax
> cable in its original format, so that on the remote side, it would be as though
> it's coming
> from antenna.
>
> I have lots of leftover RG-6 cable/connectors. And, I would like to connect my
> TV to
> my computer using RG-6 cable, and install A-B switch ($10) at TV, so that I can
> pick
> which input to watch from. As far as TV is concerned, it wouldn't know if the
> signal is
> coming from antenna or from my computer.
>
What you're looking for is referred to as a "video modulator". Many
years ago, personal computers such as the Apple II, Commie 64 etc. used
them to hook up to a TV. There are also some that will convert VGA to
NTSC video, but with those you're greatly limited in resolution to what
NTSC supports. You could get a good picture with something that can
take HDMI or DVI from a computer and convert it to ATSC video on RF, but
I haven't seen any and I expect they'd be fairly expensive. Of course,
many TVs these days have VGA input, as well as HDMI/DVI, which would
give excellent picture quality. My own computer uses DVI @ 1080P on a
23" wide screen monitor. I could, if I wish, connect it to a HDMI input
on my TV. Does your TV not have any HDMI or VGA inputs?
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