|
|
|
|
|
|
|
Voice Gretag ← GC-103
Speech scrambler
Gretacoder 104, abbreviated GC-104, is a
voice scrambler for mobile (military) applications,
sold in the early 1980s by Gretag
in Regensdorf (Switzerland) as an OEM product.
Contrary to most other Gretag encryption products, the unit
was not manufactured by Gretag, but by
Telsy in Italy.
|
The Gretacoder 104 is housed in a ruggedized green metal case,
making it suitable for use in harse environments,
such as military vehicles.
Being a voice scrambler,
it is less secure than true (digital) encryption, but has the advantage
that the scrambled signal stays within the bandwidth of the
channel.
The device has two modes: time domain and
two-dimensional scrambling.
The latter uses a mixture of time domain and frequency domain scrambling.
The GC-104 is compatible with the GC-103 telephone scrambler,
but not with other Gretag scramblers.
|
|
|
|
|
|
Any links shown in red are currently unavailable.
If you like the information on this website, why not make a donation?
© Crypto Museum. Created: Friday 21 June 2013. Last changed: Wednesday, 21 August 2024 - 06:45 CET.
|
 |
|
|
|
