SOV - rýchlovysielač k R-350

Rýchlovysielač pre rádiostanicu R-350 and aj the R-350M is a mechanical zariadenie which pomocou nadierovaného format 35 mm,slúžiaceho ako pamäťové medium allowed vysielanie encryption on this administration rýchlosťou around 600 to 900 znakov for minútu. The administration had even encrypted in the form of numerical troops. Perforovanie (programovanie) sa robilo pomocou zvláštneho zariadenia. Rýchlovysielač pri každom the displacement of the celluloid film about one step otvorom prislúchajúcim konkrétnej digit appended vysielací contact on the disk and this during the act summon speed sent číslicu in the form of morzeovej brand. The rate of vysielania the single digits sa mierne varied, because, for example, zero has dĺžku 22 elementárnych impulzov and päťka iba 12 elementárnych impulzov. One elementárny pulse zodpovedá dĺžke bodky (space in a character). Čiarka and medzera between znakmi takes 3 elementárne impulses.
In the case of chýbajúceho movie, bolo possible crime kóderom vysielať aj characters pomocou "pen" ťahaním after príslušnej cestičke on the top of the kódera where boli on plošnom boards etched individual characters. niekoľko bodiek sa used to repair badly posted(misguided) znakov. After každom piatom character sa perfed medzera.

Source: own zbierka and http://www.cryptomuseum.com/ so courtesy of admin.

Based on my own measurement and remeasurement of the encoding pulse cylinder in this device, I beg to differ with the assertion that the rate of transmission of individual digits varied during transmission.
When using a "pen", the length of the transmission of a single digit is the same because the grooves for the individual digits are also the same length. But for some digits (e.g. the aforementioned 5) there will only be a longer gap after the broadcast.When using perforated cine film this is not the case, the length of the whole character (digit) itself and the gap between them is the same length. But each digit has different lengths of spaces between the characters, and even the "dots" and "commas" in the character itself have different lengths or times (elementary pulses).
Other characteristics of the fast transmitter (encoder):
The device is designed so that by turning the crank counterclockwise the speed of transmission is quarter the speed of the film, i.e. the film is scrolled 4 times slower. The direction of film feed does not change. I suppose this is preferable when broadcasting in a cluttered environment, or at the limit of audibility at very long broadcast distances- but this increases the risk of broadcast detection.
There are two screws on the underside of the device, one is to adjust the hardness of the manual morse key, and the other (in the bakelite sleeve) is to adjust the key stop, or its travel.
Morse codes of the transmitted numbers:
1 .----
2 ..---
3 ...--
4 ....-
5 .....
6 -....
7 --...
8 ---..
9 ----.
0 ----- (posting on perforated film has a different format: --.--)
... (correction sign) .........

Photo source: own collection sptech.sk