SIGINT Les Alluets le Roi

The 'Frenchelon' SIGINT site at Les Alluets le Roi is one of the many stations in the Echelon chain of command.
Alluets-le-Roi started after WW2 as a radio transmitter station serving the communications of the SDECE Technical Service and performed occasional COMINT intercept duties for the SDECE as secondary mission.
In the 1970s the station was one of the principal sites where international telephone calls and FAX’s were intercepted.
In the 1990s, the first parabolic antennas for interception of satellite communications were placed at the station.
By 9/11, Alluets-le-Roi and the Domme SIGINT station in the Dordogne were the DGSE’s largest and most important SATCOM intercept stations, with over 200 intercept operators.Both are very high security facilities.

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