"Capitol" wrote in message
...


Dave Plowman (News) wrote:
And digital *should*
be more robust to modest levels of interference that are obvious on
analogue.


In somebody's dreams. Analogue signals are much more robust than
digital. The detection signal strength of an analogue radio sound signal
for understandable reception is IME almost x10 that of a digital
signal!

That rather depends on the system used but for analogue versus digital
television you are correct as the modulation scheme is really only suitable
for stuffing bits down a piece of wire with little crosstalk (and even then
there are cheaper better options).

But if you remember the old analogue mobile phone system you'll see the
digital system is far more robust. In fact the CDMA modulation schemes used
in 3G are about as near as one can get to the physical limits of a channel.