BID/270 GOLIATH

A less than secure (LTFS) system used on landline speech circuits. It was really speech privacy equipment which has a limited capability and was not to be used for information which might have a long term intelligence value. The device only used speech inversion and compression. This was the first time such a system was authorized for use in an operational area when it was deployed to Northern Ireland in the mid 1970's.

The system's service life spanned from the early 1970's until the late 1980's.


Credits and References:

1) BID 160 placard at the UK Royal Signals Museum in Blandford Forum, UK.
 

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Jul 28/07