BBC coverage: Colossus vs. Modern hardware
stanb at dial.pipex.com
Fri Nov 16 12:56:15 CST 2007
dwight elvey said:
> > From: wdonzelli at gmail.com
> >> AFAIK there's no transmission equipment as part of the SZ42 itself though, so
> >> something would still need to be hooked between that and a giant aerial in
> >> order to do the transmission; I think it was this bit that Will was interested in.
> > No, I am interested in the thing that modulates the bitstream, before
> > the transmitter. The modem, basically, not the transmitter.
> > --
> > Will
> I thought most of these messages were sent to stations that only
> had operators. In that case, it would have been sent by hand with
Colossus was built to decode messages in rtty code sent by
the Lorenz Geheimschreiber cypher machine.
> Still, at the rates they were sending data in those days, FSK
> could have been as simple as a solenoid on a capacitor, tied to
> the frequency reference.
That was the normal way of doing things at that time. Some of us
can still do it that way...
Stan Barr stanb at dial.pipex.com
The future was never like this!
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