page_title: R-350M
section_title: Deployment
hierarchical_section_title: R-350M / Deployment
caption_attribution_description: Polski: Perforator taśmy celuloidowej (telegramu szyfrowego) radiostacji R-350M. Zdjęcie pochodzi ze strony http://www.2brygada.walcz.paak.net/.
context_page_description: R-350M "Eagle" is a Soviet portable short-wave radio transceiver designed for covert operations.
context_section_description: The R-350M radio was introduced in 1957 as a replacement for the earlier R-350 set. It was designed for use by Spetsnaz (special forces) involved in reconnaissance and sabotage missions behind enemy lines. The set could also be used by agents for espionage activities.
  The main mode of operation of the R-350M was the so-called fast telegraph - it allowed for rapid transmission of a previously prepared message, making it near impossible to track the transmitter location. The radio operator would punch code the report on to standard 35mm photographic film using the tape perforator. The encoded film strip consisting of 5-digit digital groups was then fed into a hand cranked reader linked to the radio transmitter. The receipt of such a cipher-telegram was carried out using specialist equipment; a tape recording of the received signal would be played back at a much slower speed allowing the code to be de-crypted.
caption: Tape perforator key pad unit
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