[appling]

I have basic cable RF in my home from the cable company... I also have Satellite Directv... Also have DVD and VCR in one central location... All of these but the cable are connected to a modulator via there red white yellow... This modulator sends each of these components signals out via coax to each room in my house on channels 121, 123, 125... the cable is also sent out on the same coax using channels 3 thru 70... I now have a 42" plasma that has no tuner built in and it has no coax RF input... I would like to get something that will take the RF coax into it and output to my plasma via its component input... Also hopefully this item I am looking for will upscale/upconvert the video to selectable 480, 720, 1080... Anyone know of such an item?

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[txrose]

You are absolutely correct. I don't know what I was thinking. An old VCR would work.



The yellow video jack is called composite. Component video has three jacks plus two audio jacks. That means channels 121, 123 and 125 are analog SD 480i channels which will have left and right bars when viewed on an HDTV unless the set AR is in a zoom mode. For this reason there is no PQ value IMO in using the component input to the plasma or providing any upscaling. A $50 CECB with its composite output should work fine. The Channel Master (and a few others) CECB has an S-Video output which could provide a small PQ improvement.

 

[kedirekin]

Channels 121, 123, 125? Is a CECB going to be able to tune them? And are the channels being put onto the coax as ATSC or NTSC? I didn't think CECBs could recieve (decode) NTSC - only pass it through.


Maybe an old VCR?

 

[texasbrit]



Quote:
Originally Posted by kedirekin /forum/post/16873904


Channels 121, 123, 125? Is a CECB going to be able to tune them? And are the channels being put onto the coax as ATSC or NTSC? I didn't think CECBs could recieve (decode) NTSC - only pass it through.


Maybe an old VCR?

You are correct - all these channels are NTSC analog channels and need a analog tuner, so an old VCR is by far the best solution. It will output to the TV via RF coax (on channel 3 or 4), s-video or yellow composite video connections/red-white RCA audio. The VCR won't have a component output because there is no point, the signal is only 480i SD. The TV will upscale the signal to whatever is the native resolution of the TV.

 

[egnlsn]



Quote:
Originally Posted by texasbrit /forum/post/16874206


You are correct - all these channels are NTSC analog channels and need a analog tuner, so an old VCR is by far the best solution. It will output to the TV via RF coax (on channel 3 or 4), s-video or yellow composite video connections/red-white RCA audio. The VCR won't have a component output because there is no point, the signal is only 480i SD. The TV will upscale the signal to whatever is the native resolution of the TV.

I second this reply.