BBC coverage: Colossus vs. Modern hardware

[Randy Dawson]

> Date: Thu, 15 Nov 2007 23:25:13 -0500
> From: wdonzelli at gmail.com
> To: cctalk at classiccmp.org
> Subject: Re: BBC coverage: Colossus vs. Modern hardware
> 
> > I did some fairly bizarre modem design for a downhole well logging camera, transmitting power and digital video over 5 miles of coax.  I can probably answer any modulation questions you may have, or point you to the literature I used in my research and design.
> 
> I think I can be pretty certain to say the Germans were doing nothing
> really odd back then. I am more interested in exactly what kind of set
> they were using to do the FSK modulation (and demodulation).
> 
> --
> Will

You might check out Heddy Lamar, and spread spectrum modulation on the wiki.  It looks like Telefunken was into this for secret communications.  It might turn out to be quite a bit more sophisticated than you think.

Randy

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