HOW PHOTO RADAR WORKS
Most photo radars operate on Ka band, but there are exceptions.
Unlike ordinary radar traps, ambushes hidden within
terrain contours, photo radar operates out in the
open, usually in a van parked along the road, but
occasionally as a permanent installation that looks
much like a red light camera.
Instead of hiding, photo radar uses a low-power
beam which it angles across the road to reduce the
range at which it can be detected. So warning range
is short, too short if you have a weak detector.
Valentine One readily detects photo radar. But it
will be reported for what it is, a weak signal.
All bogeys, even weak ones, should be identified
before they are dismissed.