Problem with Modulator?

Hi,

I bought a Jensen RF Modulator. I hooked up the input/output RF cables and powered it up but, every time I plug in the composite video cable, I lose channels 22 and lower, except for channels 3 or 4 for the inputted signal, 23 and higher gradually come back as I go up towards channel 45 and then gradually go out again when I go higher. Also there's no digital cable. Is there a problem with this? or is this normal function. All I want to do is input a composite video signal with sound, and have it on channel 3 or 4, and keep all the other channels intact.

Thanks, for all your help.

Reply to
js5895
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Sounds like you are connecting the RF modulator output and your digital cable box to the TV at the same in, in parrallel. Is that right?

OK, so in one word: DON'T. Those 2 devices are not designed to be connected that way and you may lose your Cable box and/or Modulator completely!

This may be too obvious a thought, but why don't you get yourself a TV with component video and sound inputs and lose the modulator?, or even get one of those handy-dandy composite cable RF switches from RadioShack?

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Dana

Reply to
Dana Raymond

I don't understand what you mean, are you saying that I connected RF output to an RF output or, modulator output to TV input and cable output to TV input at the same time then, no, everything is connected in series.

The main TV does have composite video inputs. I want my computer's video signal on my TV for movies. The reason for the modulator is so I can use one cable instead of three and, yeah, I know I will lose quality but, instead of tuning to channel "input", I want it on a normal channel like 3 or 4 and keep all the other signals intact, also I have other TV's I want it on

Thanks, Josh.

Reply to
js5895

If your cable service provider has a signal on chan 3 &4, then there is no way you can add another signal on chan 3 or 4 without first blocking the network signal on the channel(s) or using a switch to transfer the TV between the signal sources.

Don

Reply to
Don Bowey

But video game modulators keep the other channels intact, why can't this do the same thing?

Reply to
js5895

That is how the modulator is supposed to work- with no video input, it will feed your cable RF IN to RF OUT to the TV unaltered- when video is input to the modulator, it detects this automatically and switches your cable RF IN off and applies the modulated video/sound to RF OUT on CH

3/4- your cable channels will feed through but they are attenuated (weakened or made smaller in power level).
Reply to
Fred Bloggs

I assume this is to obtain a cleaner signal on ch 3/4 and the cheapest possible retail price. If you want to watch the cable channels then turn your video source off- why would you have this running when you are not watching it?- are you time division viewing or something?

Reply to
Fred Bloggs

The computer signal is difficult to turn on and off and, someone else watches TV and that signal. Also I work on the computer at the same time. Not sure what "time division viewing" is.

Reply to
js5895

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