posted on Feb, 19 2013 @ 08:34 PM
reply to post by FosterVS
As a follow up to Foster's post, gates are "choke points". When you set up emids (sensors), you can't cover everywhere. So you place the sensors
in areas that are likely to be crossed. Roads and gates are prime territory. If the road has an intersection, you place the sensors on all four
sections around the intersection. That way you can detect the direction of travel, even turns.
Cameras can't see everywhere. The fixed cameras point at obvious targets, like the gate. So if you are a contractor, you might radio your location
after tripping the alarm, then the dudes can see you on the camera. Some areas have barrels with a number on them, so you can say what location you
are at in a repeatable fashion.
Some cameras are on pan/tilt/zoom. This is the case for the large "telescope' on Bald Mountain, as well as the Bald Mountain camera at the southern
most gate. Also the new tower cameras at the front and back gate.
Front gate PTZ camera: 37°20'39.07"N 115°39'24.84"W
Back gate PTZ camera: