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Car Forum / Driving, Maintenance, Tuning / Car Audio / June 2004how long can a RCA be?
I know this is not the appropriate newsgroup to ask this. The principle will be the same in audio and video. How long can I make my RCA from my sattelite receiver to my PC? I want to run the RCA from the sattelite into my video in of my video card to record TV programs on the PC. The cable will have to be longer than 30M for me to accomplish this > I know this is not the appropriate newsgroup to ask this. The principle will > be the same in audio and video. [quoted text clipped - 4 lines] > > The cable will have to be longer than 30M for me to accomplish this There is no exact length for composite video, so it would likely work at the distance you are looking at. But you are already starting with an inferior signal then running it a long way, which there will be some loss, so the end result may or may not be acceptable depending on what quality you are looking for. I would suggest you use the S-video output if it is available. I have run 100+ feet of S-video with no appreciable signal loss. You may also research some of the wireless options that are available. Les > I know this is not the appropriate newsgroup to ask this. The principle will > be the same in audio and video. [quoted text clipped - 4 lines] > > The cable will have to be longer than 30M for me to accomplish this I'm running about 20-25 feet of RCA for video, and never noticed any quality degradation. > > I know this is not the appropriate newsgroup to ask this. The principle will > > be the same in audio and video. [quoted text clipped - 7 lines] > I'm running about 20-25 feet of RCA for video, and never noticed any > quality degradation. But he is talking running over 4 times as long as you are running. Running RCA composite video that long will have some signal degradation. Les best thing to do is just try it and see. > > "pil" <pil@webmail.co.za> wrote in message > news:<1_2dnaAgXYDYfEPdRVn-tw@is.co.za>... [quoted text clipped - 17 lines] > > Les > > "pil" <pil@webmail.co.za> wrote in message > news:<1_2dnaAgXYDYfEPdRVn-tw@is.co.za>... [quoted text clipped - 17 lines] > > Les We had the bulb in our projector at church die and had to use a projector on stage instead. From the sound room we ran a 100ft RCA to the stage and I couldn't see any appreciable difference in the projection other than it being somewhat dimmer (most likely caused by the lower quality projector/bulb). I don't see why it'd be any different in your case. -Bruce "Bruce Chang" <bechang@swspambegonebell.com> wrote in > We had the bulb in our projector at church die and had to use a projector on > stage instead. From the sound room we ran a 100ft RCA to the stage and I > couldn't see any appreciable difference in the projection other than it > being somewhat dimmer (most likely caused by the lower quality > projector/bulb). I don't see why it'd be any different in your case. > > -Bruce Bruce, You are comparing apples to oranges here. Two different projectors on 2 different Sundays. Our memory is actually bad when it comes to recalling things like video/audio quality. Likely the OP wouldn't know that he was missing any signal degradation without a relatively direct comparison. I still think the way to go would be to use S-video if available. You already start out with an better format. Les With a run that long, noise could be a bigger issue than signal loss anyway.  SignatureMark remove "remove" and "spam" to reply > "Bruce Chang" <bechang@swspambegonebell.com> wrote in > > [quoted text clipped - 15 lines] > > Les > With a run that long, noise could be a bigger issue than signal loss anyway. Very true. I started discussing that very thing last night with another tech friend of mine. Relating the video noise at a recent show he did running about 75feet. Then again, we've done the same thing before with the same cable with no problems. Mah, whatcha gonna do? Les > > "Bruce Chang" <bechang@swspambegonebell.com> wrote in > > > [quoted text clipped - 18 lines] > > > > Les > "Bruce Chang" <bechang@swspambegonebell.com> wrote in > > [quoted text clipped - 15 lines] > > Les Agreed, eye-witness testimony is not very reliable. I would also suggest he go with S-video but the OP didn't ask for a different alternative, he asked if it could be done. It can be done and has been done. This isn't like USB where it dies at 10m and needs a repeater to go longer distances. Not at these lengths at least. -Bruce |
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