Cryptophon 1100 - Beispiele der Sprachverschlusselung
Beispiele der Sprachverschlusselung
BBC
When the Cryptophon 1100 was released in the mid-1970s, the BBC manufacturer produced a rather unusual 45 rpm vinyl audio disc.
On the 11-minute disc, a German-speaking gentleman explains how time-sharing scrambling works and gives examples. It demonstrates what a correctly decoded conversation sounds like and what an unauthorized eavesdropper hears.