[mythtv-users] unlikely idea (QAM output)
Brad DerManouelian
myth at dermanouelian.com
Wed Apr 9 16:51:06 UTC 2008
On Apr 9, 2008, at 9:52 AM, Emery Guevremont wrote:
> Dan Ritter wrote:
>> Not all, but most HDTVs have QAM tuners and MPEG2 decoders built
>> into them.
>>
>> Is there a consumer or semi-pro box that can take an MPEG2 TS from
>> PCI, USB, FireWire or ethernet and put it into QAM64 or QAM256
>> format to go across a short coax run to an HDTV?
>>
>> Obviously the chips must exist; all the DOCSIS cable modems use
>> QAM encoding for the uplink (as well as downlink) portions.
>>
>> The advantage for MythTV owners is an HD display connection that
>> might impose less CPU and graphics-card demand -- best case
>> scenario, it might be possible to do 1080P playback from a
>> very low powered device. Constructing OSD might be a problem.
>>
>> I'm going to guess that the answer to this is that there aren't any
>> such devices available for less than $bigbucks, since they are
>> only considered to be of use to TV stations. But I'd be pleased
>> to find out otherwise.
>>
>> -dsr-
>>
> I don't know if such a device exist. But I'd like a video card that
> output in clear qam through a coax cable. The advantage of this is I
> could use my home's existing coax wiring for feeding my HDTV.
I want a pony.
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