|
|
|
|
|
|
|
← Gretag Voice
Speech scrambler
The Gretacoder 104 was a voice scrambler for mobile applications,
sold by Gretag
in Regensdorf (Switzerland) in the early 1980s.
Contrary to most other Gretag encryption products, the unit
was not manufactured by Gretag, but by
Telsy in Italy.
It was sold by Gretag as an OEM product.
|
The Gretacoder 104 is housed in a ruggedized green metal case,
making it suitable for use in harse environments,
such as a military vehicle. As it uses
voice scrambling, it is far less secure than the later
true (digital) encryption units.
The unit is compatible with the Gretacoder 103 telephone scrambler
and has two modes of encryption: time-domain scrambling and two-dimensional
scrambling (a mixture of time-domain and frequency-domain scrambling).
As it is normally connected to a radio transceiver, it is suitable for
half-duplex connections only.
|
|
|
|
|
|
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: Saturday, 24 February 2018 - 06:53 CET.
|
 |
|
|
|
