воскресенье, 4 июля 2010 г.

Scrambler: Yachta T-219

Yachta T-219
the analogue domestic synchronizable scrambler


Author: SergUA6
Band Width ~2700 Hz
Low Range ~300 Hz
Pilot tone(s): FSK-2 Synchronising sequence with frequency of manipulation 100 Hz, and spacing 150 Hz precisely on the
middle of the speech spectrum
RX mode SSB

Sonograms:

pic.1 Generall view

pic.2 Detalization of sinhro-sequence

Diagrams:
pic.3 Manipulation speed


Scrambler: Yachta T-219 - is the analogue Russian domestic synchronizable scrambler. It's principle is used by many developers of the different countries, at a speech exchange. In FSK mode Sinhro-sequence, which is located precisely on the spectrum middle is transferred. The speech spectrum breaks on two parts, above and below this sequence. All that breaks into unequal time pieces, in which limits these two speech channeles are rearranged by places and inverted. It is considered that Yachta has temporary resistence. This scrambler is widely used by military men for transfer of the operative information with limited limited term of use.