----- Original Message ----- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx> > > The blurb didn't explain what the upgrades, other than to > say HD content. I was looking for something like "using > ATSC for transport," or some such. Surely, they can't be > still thinking NTSC? Disney's pilot MovieBeam setups used the Dotcast data delivery system, which puts digital data on top of NTSC analog signals. Disney's business model was to install a Dotcast modulator at every PBS affiliate. We had a couple of surveys to determine what equipment they would need to provide for our particular transmitter. Disney must have finally found out that A) their service was way overpriced for the number of movies they could deliver (espeically when compared to a DVD service like NetFlix), and B) maybe Congress and the FCC were serious after all about eventually shutting down NTSC. > Speaking of ATSC, Randy Tomlinson reviewed the Winegard > Square Shooter antenna in the current version of The > Perfect Vision and claimed it was quite good. He said it > couldn't match conventional antennas for analog reception. > Analog signal had lots of snow, he says. Yet it was > remarkably good for DTT, picking up signals from 40 miles > away in difficult hilly terrain. I opened up a Square Shooter last year, and it is basically a printed circuit antenna. It's only forte is an extremely high front to back ratio similar to a Silver Sensor, which of course minimizes the amount of multipath an ATSC receiver has to deal with. As the multipath load is reduced, the lower the S/N required to demod ATSC. http://www.winegard.com/offair/s2shooter/WC-811.pdf John ---------------------------------------------------------------------- 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.