[linux-dvb] Re: grr.. Any DVB-T adaptors which work reliably?

[Ralph Metzler <rjkm@metzlerbros.de>]

Robert Schlabbach writes:
 > > This one looks like it could at least be fitted with a
 > > CI connector (yes, some DVB-T channels in Sweden are encrypted).
 > > Does anyone know if one gets this card if you buy a Hauppauge
 > > Nova-T, or if you get one without a CI connection?
 > 
 > The CI connector is _not_ equipped, neither on the Hauppauge nor on the
 > Lorenzen model. And there appear to be a number of SMD components missing,
 > so it wouldn't be simple to add the connector. And the design seems a bit
 > kludgy to me anyway: The connector is simply wired to the SAA7146A DEBI
 > port. The software would transfer the data from the demodulator to system
 > memory, then back from system memory to the CI for unencryption, then back
 > to system memory - i.e. every MPEG-2 packet would have to pass _three
 > times_ through the SAA7146A. I think this design leads to all kinds of


AFAIK, the Nova-CI kind of cards also just control the CI module through
DEBI. The actual MPEG data is probably routed directly from the demodulator 
through the CI adapter back to one of the SAA7146 input ports.



Ralph


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