SYSTEMS MENU
Listed here are systems or security initiatives which I located on the Internet:BRUIN - Bruin was a British trunk communications system that extended telephone and data services to major headquarters units down to brigade level. It used UHF and SHF Line of sight radios (C70 as well as C 50), interconnected through Commcentres. The heart of the voice system were Strowger terminal and tandem telephone exchanges.
The “Fish Frier” is a term used to refer to the log periodic antenna that the C50 used, which looked somewhat like a fish frier used in barbecues. There were two antennas mounted on the same mast, polarized at 90 degrees to each other, one for transmit and one for receive. The C70 (Siemens) used twin helical antennas at SHF. There may be some dispute as to whether the C70 was, technically, SHF, but it was classed as SHF.
Data Transfer Device (DTD)
LARKSPUR - Larkspur was a combat net radio operating at HF and VHF, with radios such as C11/R210 at HF and C42 at VHF and was replaced by Clansman: the frequency synthesis techniques used in Clansman re-vitalised the use of HF comms.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
Dec 18/11