"Fred McKenzie" wrote in message
...
In article ,
John Smith wrote:

Really? Something is quite wrong there!

Digital signals should require much less power to deliver the same
"quality" signal.

JS-

Why do you say that?

You can't have a less-than perfect digital TV signal. There is no snow
because a weak digital signal's picture freezes or goes away. Therefore
there is no way to compare quality levels of less-than perfect pictures.

Well, there is, sorta. You do need much more analog signal to get a noise
free picture, compared to the level of digital signal you need for a good
"lock."

By the old TASO standards, you need over 40 dB s/n to get a nice picture,
which requires a lot more peak RF power. By comparison, the digital signal
needs only about 17 dB s/n.