Re: How does digital TV broadcast prevent ghosting effects?


We live in heavy multipath. All I can say so far (after one day) is that
we'll seem to be losing some stations in 2009. What happens is one of these:

a. TV doesn't recognize the DTV channel, data probably too messed up.
b. TV says something like "Receiving data" but that's it.
c. Picture gets blocky or stops at times. IOW not very useful.

Some work well and there I have to say it's nice. There are clearly
disadvantages when picture content changes rapidly but heck, there is no
free lunch. Shannon said it more scientifically though. Most of the time
the DTV picture is really nice (for channels where it works).

--
Regards, Joerg

http://www.analogconsultants.com/- Hide quoted text -

- Show quoted text -

Joerg,
1) where do you live with heavy multi-path.?

2) what receiver are you using, Do you know what generation design it
is?

3) What kind of antenna are you using, indoor or outdoor etc

4) Do you by chance have a spectrum anlyzer and can look at the RF
signal?


Multipath is THE major problem with digital TV.

Mark

.

Relevant Pages

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    ... TV doesn't recognize the DTV channel, ... Picture gets blocky or stops at times. ... Lots of signal strength but lots of selective fading that ... least in AZ) was just wandering polarization from the heat. ...
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