I thought DVB-T was using OFDM, not QAM.
On Fri, 10 Dec 2004 10:29:35 -0500, Joseph A. Caputo <[EMAIL PROTECTED]> wrote: > On Friday 10 December 2004 08:41, [EMAIL PROTECTED] wrote: > > > > Sorry, I have to ask a stupid question... > > > > > > Anyway, the pcHDTV card we are all talking about is rumoured to > > > > have QAM support in development, so it could tune your cable and > > > > you would not need an antenna. As to when, who knows? > > > > > > > > The QAM signal for your local stations should be unencrypted. > > > > The > > > > Wouldn't you still need to subscribe to the cable service to receive > > a signal that you could tune into? If so, and you don't have a > > subscription, you'd still need an antenna... or am I confused? > > This is how I understand it (from one layman to another): > > If you have digital cable, the digital channels (typically channels < > 125 are still analog NTSC, even if you have a digital subscription) use > QAM. I'm not clear on whether it's the QAM signal itself or the MPEG-2 > content that's encrypted (if at all), but in any event the FCC > stipulates that at least the local broadcast stations carried by your > cable provider should be unencrypted (though your provider may not be > in compliance). I don't think there is currently any way for you to > decrypt an encrypted QAM transmission outside of your cable company's > STB. Maybe if you have PhD's in cryptology and signal processing... > > If you don't have digital cable, you may use an antenna to receive OTA > digital broadcasts. These do not use QAM, but 8VSB. > > -JAC > > > _______________________________________________ > mythtv-users mailing list > [EMAIL PROTECTED] > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users >
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