[mythtv-users] Capture card luminance bandwidth (BT8xx and PVR-250)

[Cory Papenfuss]

 	I'm talking about composite.  I know that one should be able to 
get more mileage out of Y/C.  My main reason for investigating this is to 
get a better picture out of a cable TV signal.  Everything else being 
equal, watching TV on the TV I'm using has a significantly better signal 
than watching it through the PVR-250-encoded card.  I know it's not the 
TVOUT part of the equation.

 	I haven't gotten into trying to get more poop out of a Y/C 
connection.  Those with digital cable or satellite would probably be 
interested in that.  The tuner has to be connected as composite, not Y/C 
since that's what comes down the wire (VSB-RF modulated, of course).

-Cory

*************************************************************************
* Cory Papenfuss							*
* Electrical Engineering candidate Ph.D. graduate student               *
* Virginia Polytechnic Institute and State University 			*
*************************************************************************


On Sun, 31 Oct 2004, Jay R. Ashworth wrote:

> On Sun, Oct 31, 2004 at 10:03:31AM -0500, Cory Papenfuss wrote:
>>  	I always knew that NTSC was crap, but this is a new level of
>> revelation.  Of course, for S-VID this whole discussion is somewhat moot,
>> since it can have fairly high bandwidth. by comparison.
>
> What was the singal source connection you were using for this?   I
> assume this was capture bandwidth you were talking about; I infer you
> mean composite.  Did you test the S-vid, and do we know which way the
> tuner is attached?  I'd assume strongly it's Y/C, it doesn't make much
> sense to recombine them only to split them apart again...
>
> Cheers,
> -- jra
> --
> Jay R. Ashworth                                                jra at baylink.com
> Designer                          Baylink                             RFC 2100
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>
> 	"You know: I'm a fan of photosynthesis as much as the next guy,
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>