SYSTEMS MENU
Listed here are systems or security initiatives which I located on the Internet:BRUIN - The trunk communications system which replaced LARKSPUR in 1968 and lasted for 25 years. The radio component, C50/R236, was housed in a portable trailer called "The Fish Fryer". BRUIN was an ‘interim measure’ to cater to the operational needs of the Cold War years. It was basically an ‘off-the-shelf ‘ buy while a true area system was being developed.
Data Transfer Device (DTD)
LARKSPUR - Larkspur was the name given to the postwar communications system adopted by the British Army. A detailed description of the radios is available on the Wireless Warrior web page.
PTARMIGAN - An area communications system which is the current one in use and it replaced BRUIN. It took 25 years to develop and was operational in 1985.
STEAMVALVE - The acronym means Secure Tactical Electronic Amplitude Modulated Voice Actuated Long-range Vestigial Emanations. A shipboard HF secure voice system whose crypto component was a KG-13. No other info is available at this time.
References:Royal Signal Corps Museum http://www.army.mod.uk/royalsignalsmuseum/index.htm
May 6/07