Tom Barry wrote: > Are you stating that all digital TV's (with tuners) are > required to support unencrypted QAM? Certainly not. The cable reception part was always meant to be an agreement between CE manufacturers and cable companies, which was necessary mostly to make the built-in receiver of value also for cable customers. If I remember correctly, the first receiver that permitted this QAM reception along with 8-VSB was the Broadcom BCM3510, and the year was 2000. http://www.transmitter.com/curr2000/curr001023.html The reason I thought this was a significant milestone is that it allowed the Grand Alliance vision of a combined DTT and digital cable receiver to be achieved without having to implement 16-VSB for cable. Cable had been resisting 16-VSB, ever since way back in the mid 1990s, so now that resistance did not mean that sensible receivers were impossible. Anyway, since those days, many or most ATSC receivers have also been capable of demodulating at least unencrypted 64- and 256-QAM, but not all. For instance, the Digital Stream 3150 plus of 2004 cannot decode QAM. Bert ---------------------------------------------------------------------- You can UNSUBSCRIBE from the OpenDTV list in two ways: - Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line.