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Old September 16th 08, 04:33 AM posted to rec.radio.amateur.antenna
JB[_3_] JB[_3_] is offline
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First recorded activity by RadioBanter: Apr 2008
Posts: 543
Default Chart of HDTV freqs?

Look at the spectra of the signals an compare the levels. More amplitude in
the sync pulse and average video than the ATSC pilot across the board from
what I'm seeing. Perhaps they are trying to get away with less. Perhaps
fooling around with tower work and dropping the power. Hard to tell with
the GUI meter and never had the service monitor up at the time. One is DTV
VHF HI that is a new one with no Analog so I lose it completely and 2 are
UHF that are fading on me from time to time where I have to punch to the
Analog broadcast, one of which is VHF. Generally more power is needed on
UHF to come up with comparable range.

"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.

Most of the time my simple antenna picks up good HDTV. However there
are times when reception is poor, and I have to switch to the Analog
tuner. I'd rather have a little snow than no picture at all!

Fred