Warp wrote:
>   I have no idea what that has to do with modulation.

I'm not talking about modulation. I'm pointing out that there's no such 
thing as a digital signal, unless you start getting into quantum 
cryptography or something.  It doesn't matter if it's modulated or not.

There's no such thing as a digital signal. There's only a signal that you 
choose to interpret in a digital way. But that's a feature of 
interpretation, not a feature of the signal.

For example, digital CDMA cell phones do not operate if the actual 
over-the-air signal is digital. They rely on looking at the analog 
properties of the radio waves to sort out the digital signals. Beyond just 
the tuning bit.

-- 
Darren New, San Diego CA, USA (PST)
   The question in today's corporate environment is not
   so much "what color is your parachute?" as it is
   "what color is your nose?"

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