Re: [Phys-l] Digital TV signal delay

["John Clement" <clement@hal-pc.org>]

> We are on satellite feed. Two channels carry the same program with one
> digital and the other analog. When I switch from analog to digital there
> is a one second delay. If I switch from digital to analog I lose a second.
> Same box, same LCD but a i second discrepancy +/- depending on the
> direction of the switch.
>
> Too much of a good thing is wonderful!
This is not surprising.  The time delays in encoding/decoding may be
somewhat disguised by having the analog signal generated from the digital
signal.  Also it says it is analog, but what does that mean?  Is it
transmitted from the satellite as analog?  Or is it really a digital
transmission using an analog feed?

The satellite system is also different from the terrestrial system.  So
different rules apply.

John M. Clement
Houston, TX