tony sayer wrote:

No John, thats the day job in Radio of a few types!, its just where do
you draw the demarcation line in a digital or analogue system.

I draw it at the point where the digital data is turned into an analogue
signal by the modulator and vice versa.

Though, I might *call* it digital all the way through, if I were talking
to someone who doesn't know a lot about it......

To draw a (Maybe not perfect) analogy, the "digital" sound recording I
made the other day was analogue from the microphone up to the point
where the signal met the ADC, then it was digital all through the chain
until it met the DAC just before the amplifier. Then it was analogue
again. If I published it, it would be classified as DDD on a CD, as all
the recording, editing and distribution was done in the digital domain.
Both ends of the reproduction chain must be analogue, though. Unless
you've got digital vocal chords and ears. It's still *called* a digital
recording, though.

--
Tciao for Now!

John.