How times have changed. Back in 1997, when I was working as a contractor for my old company, Hughes Missile Systems (now Raytheon), I worked on implementing some jamming tests on the Tomahawk missile GPS. FWIW, we put the missile section on a wooden pedestal covered in RF absorber on top of the rotating plate (also covered in absorber cones) under "The Arc" as seen here: http://www.kgun9.com/news/local-news/test-facility-at-ft-huachuca-assures-working-communications-equipment-for-soldiers

Just for giggles, I climbed (took the stairs) "The Red Tower", the top of which would contain a good sized ham shack. The tower is completely wooden and held together by fiberglass bolts. The "dish" that is behind the guy being interviewed is actually a shaped reflector that in combination with a horn located below ground level forms a folded "compact" range, for those who understand such things. The leaning airfoil shaped tower holds the test subject at the plane-wave focal point of the reflector. An M1 Abrams tank can be supported and rotated on top of this tower.

We had to do our testing in the wee hours of the morning, with secure communications links to range people who could tell us to shut down at a moments notice and our jammers were on a, few minutes on-lots of minutes off schedule.

Wes  N7WS

On 6/10/2016 1:03 PM, Fred Townsend wrote:
This Is Likely Why The Navy Is Causing A Massive And Mysterious GPS Outage
In The Western US - The Drive

http://www.thedrive.com/the-war-zone/3865/this-is-likely-why-the-navy-is-cau
sing-a-massive-and-mysterious-gps-outage-in-the-western-us

Fred, AE6QL


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