Scrambler: Yachta T-219

Yachta T-219

the analogue domestic synchronizable scrambler

The signal is here.

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.