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Sending DVD movie to another TV?
This thread has 18 replies. Displaying posts 1 through 15.
Post 1 made on Saturday January 26, 2002 at 15:33
HereticPB
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Um Here is my deal! I have a small kitchen tv that has only RF Coax input and I want to be able to play my DVD movies in there when I'm cooking and doing other things! So far All I can think of is through the VCR but Macrovision blocks that! I don't want to go all out with the Channel Distribution stuff and all that I just want a simple thing that works.

Is there a way to do this with out the Macrovision problem or is there a thing to turn off the Macrovision? Would one of those RCA Cables to coax adapters work! Also I want the ability to watch VCR movies as well!

HtPB
Post 2 made on Saturday January 26, 2002 at 17:22
joeyb
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Im not really sure if I understand your question. It sounds to me like all you need is a RF adapter, you can buy them for 30 dollars at Radioshack.
Post 3 made on Saturday January 26, 2002 at 22:45
Larry Fine
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Actually, it's not an adapter, but a modulator. It takes audio and video, and, like the coax output of a VCR, sends out a channel 3 or 4 VHF signal.

It has been my experience that, unlike a VCR, because there is no recording circuitry, the MacroVision will not affect the signal.

One thing: even though the modulator has left & right audio inputs, the transmitted signal has mono audio, so don't expect to get a stereo sound from your TV.

Larry
www.fineelectricco.com
OP | Post 4 made on Sunday January 27, 2002 at 02:31
HereticPB
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Interesting Larry. Well I tell you more of what I have. Well Right now I have a Kitchen TV with only A RF input. I have ran a RG-59 cable from my VCR out to the TV in the Kitchen. I have my DVD player connection to my reciever and through the receiver into the VCR. This is what causes the Macrovision! It goes into the VCR and out using the RF Coax.

Would getting one of those Macrovision removal boxes fix my problem or would it just be easiest to use like a small Channel Plus Audio/Video distribution thing.

HtPB
Post 5 made on Sunday January 27, 2002 at 03:18
Larry Fine
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I would still try the modulator first. Just feed the audio and video from the DVD into it, and connect the output to the coax to the TV, or if you want to use it for recording, too, connect the modulator output to the VCR coax input, and leave the VCR coax output as it is now.

(I haven't tried the video stabilizer, but if you or anyone else has, I'd be interested in knowing if it works, and if the video loses any quality.)

If your VCR happens to have a 'simulcast' option, where the audio and video inputs can be separate, you can feed the stereo audio from the DVD directly to the VCR's audio inputs (assuming a hi-fi VCR) as you would using a stabilizer, and the video through the coax input from the modulator, thus bypassing the MacroVision problem. This way, your recording will have stereo audio.

Larry
www.fineelectricco.com
Post 6 made on Tuesday January 29, 2002 at 18:34
automan
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"and the video through the coax input from the modulator, thus bypassing the MacroVision problem."

Are you saying he should send the modulated DVD video signal into the VCRs RF input? Why? This would not eliminate the macrovision problem, and introduces 2 staged of baseband to rf modulation....if you get a picture in the end, it would look like crap.
Post 7 made on Wednesday January 30, 2002 at 00:32
Larry Fine
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Auto, my experience has been that the modulator doesn't produce the light/dark action of MacroVision, but I have never used this setup for serious watching.

I agree that it's a poor way to transmit a picture, but kitchen TV-watching is not a high-quality demanding function. Heretic already has one RF connection just energizing the coax to the 2nd TV.

Larry
www.fineelectricco.com
OP | Post 8 made on Wednesday January 30, 2002 at 18:33
HereticPB
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Hey Larry! Um could you explain this a little more in depth. I'm just a bit lost from what you said.


HtPB
Post 9 made on Wednesday January 30, 2002 at 20:42
Sonicflood
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Yes, a modulator will allow you to view the DVD player on your coax only TV. I use a modulator that I purchased from Radio Shack, part #15-1243. I chose channel 66 as my DVD channel. I can now watch the DVD player on any TV in the house on channel 66. I have a distributed video system, so it made it easy for me.

Post 10 made on Thursday January 31, 2002 at 12:56
Larry Fine
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Heretic, like this:



Be sure to set the modulator output and the TV to the same channel, 3 or 4, usually whichever is NOT a local channel.

Larry
www.fineelectricco.com
Post 11 made on Thursday January 31, 2002 at 13:10
Larry Fine
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Me, again. Here's an alternative way:

OP | Post 12 made on Thursday January 31, 2002 at 18:14
HereticPB
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Hey Larry on that second design. If I wanted to be able to record a tv show on cable I would probably use a signal combiner on the modulator and the cable coming in?

HtPB
Post 13 made on Thursday January 31, 2002 at 20:48
Larry Fine
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Yes, and you may be able to use a simple splitter backwards. Not ideal, but electrically possible. Besides, some modulators have a built-in A/B switch.

Larry
www.fineelectricco.com
Post 14 made on Friday February 1, 2002 at 09:15
ttiger72
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Hey Larry,

On your second drawing wouldn't that kick the macrovision in since it is running through a VCR?....Tony
Post 15 made on Friday February 1, 2002 at 09:54
Larry Fine
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As far as I know, MacroVision works by messing with the VCR's AGC (Automatic Gain Control) recording circuitry. Since a modulator doesn't record, there is no AGC. Once modulated to an RF signal, the MacroVision 'signal' is lost, and not re-inserted.

Larry
www.fineelectricco.com
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