ODP: toughy

[Roman Sowa]

Actually, it would be called .dem since it demodulates only
and yes, modems work like that, but only up to 1200 bps afaik.

BTW, how fast is this PPG dump? Considering the common
transmision speeds used in PPG times it would be enough to use
FSK decoder hooked directly to printer port, and scan it.
Little software work and we have binary file.
(Or little more software work - like signal processing - and we have
binary file out of wav file with no hardware used)

But who knows what kind of framing they used, i.e. start, stop bits,
headers, special commands, bit alignement, word length, sign convention etc.
I wouldn't like to do it even my life depended on it.

Roman

> -----Oryginalna wiadomość-----
> Od:	Bill Layer [SMTP:b.layer at vikingelectronics.com]
> Wysłano:	14 kwietnia 1999 23:53
> Do:	WeAreAs1 at aol.com; synth-diy at mailhost.bpa.nl
> Temat:	Re:  toughy
> 
> Hi,
> 
> >It would be very easy to build an FSK decoder circuit that would turn the
> 
> >high and low frequencies back into binary bits,
> 
> Not to seem simplistic, but isn't that called a modem?
> Bill Layer
> Sales Technician
> <b.layer at vikingelectronics.com>
> 
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