[ale] OT: transmitting cable tv wirelessly

[Keith R. Watson]

At 01:50 PM 12/16/2002 -0500, Jeff Hubbs wrote:
>On Mon, 2002-12-16 at 13:43, John Wells wrote:
> > Keith,
> >
> > Thanks for the information.  From what I gather from your message, I would
> > get good quality from the x10 unit but not as good as s-video.  Is there a
> > significant tangible difference in picture quality?
> >
> > It also surprised me that you rank s-video higher than composite, as I had
> > heard the opposite quite a few times.  However, doing a little more
> > research proved you right as far as I can tell.
> >
> > Is NTSC the same composite video as those $30+ monster composite video
> > cables?  Why is composite video so much more expensive than s-video as far
> > as cables go, out of curiosity?
> >
> > Thanks very much for your input.
>
>NTSC (jokingly, "Never Twice the Same Color") *is* "composite video" as
>it's practiced here in the States.  The reason why the Monster composite
>cables are so much more expensive is because they are a massively
>overspecced ripoff.
>
>- Jeff

Jeff,

I haven't heard that one before. I used to be a member of SMPTE so I found 
it to be very funny.


John,

I concur with Jeff, that "Monster" brand cables seem to be rather pricey. 
Monster made their name by making low DC resistance cables used to connect 
speakers to audio amplifiers.

Monster eventually leveraged their brand name and branched out into other 
cables. An NTSC signal is a low current 1 volt Peak to Peak signal so the 
primary characteristic your looking for is good shielding and correct 
impedance.

If you want more information on NTSC:

http://www.ntsc-tv.com/images/tv/sync-wf.gif
http://www.ntsc-tv.com/

http://www.ee.washington.edu/conselec/CE/kuhn/ntsc/95x4.htm


Plus here are some corrections to my last email, (shows you what happens 
when you don't work with a particular technology for about 20 years).

The color burst frequency is 3.58 MHz not 3.8 MHz.
The color burst is located on the back porch not the front porch.

keith
-------------

Keith R. Watson                        GTRI/ITD
Systems Support Specialist III         Georgia Tech Research Institute
keith.watson at gtri.gatech.edu           Atlanta, GA  30332-0816
404-894-0836

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