Saw an old thread thats closed, but thought I'd add 2 cents in case anyone still wonders..
Is there an air field at that base?
Our radar isnt far from the back fence, and the county road along that fence most cars get a laser hit as they go by... Its an RF flood from the air search radar... Its overpowering the units and pushing them into a laser positive.. I've borrowed three different detectors and tried it myself.. 2 high end and one Walmart cheap-o... They all went laser positive, just at varying ranges from the radar. And I can verify that the base MPs dont have laser (and they were no where near the radar when we tested this, we asked them). Also checked with county and CHP, county didnt have a laser, and CHPs only laser was 30 miles away during the test.
On another note, when the search radar is on full power, it also tends to knock out cell phone calls on CDMA network as they drive by... They are building a new radar farther in and on a taller base, so it probably wont occur too much longer around there.