[mythtv-users] HDHomeRun HDTV network tuner

Rudy Zijlstra mythtv at edsons.demon.nl
Wed Mar 1 10:12:30 UTC 2006

Michael Freeman wrote:

> if the silicondust people are listening, you ought to put in a QPSK 
> tuner so we can latch onto the Forward Data Channel and no longer have 
> to guess what lies where...being able to get the digital cable info 
> feed would be nice.  we could tell what's encrypted, what listing 
> channel maps to what physical feed, etc.  none of the QPSK tuners out 
> there seem to cost less than a grand, since they're all lab equipment.
> it's somewhere between 0-150 MHz, 2.048 Mbit data flow, 3 MHz 
> bandwidth...i think typically it resides around 75.25 MHz.
> i don't need more tuners, but i'd buy one easily just for that.  just 
> to get the data off the QPSK carrier to where i can start hacking on a 
> decoder for it.
> and i know other people would buy it at that point too.
> On 2/28/06, **

Ahhhh, the wish to receive either the proprietary Motorola or SA forward 
data stream... Which is also used by their respective CA systems... 
Which is not documented in any public document... which changes every so 
often (almost yearly, sometimes even faster).

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