Uniden GPS9000NZ, Owner'S Manual

Page: 6 / 28

4
Fixed Pole Speed Camera's
No standard Radar detector can detect a Fixed Camera because
they use Pads under the road to measure speed not Radar. Only
the GPS9000NZ using GPS Technology and a Preprogrammed
memory of all current locations can warn you of a Fixed
Camera. Warnings at 400m and 160m.
Laser
The Laser Speed Detection System, also called LIDAR (for
L ight D etection and R anging), uses a laser gun that emits
infrared light pulses just outside the spectrum of visible light.
Each reflected pulse measures the speed of the object coming
toward, or going away from, the laser gun.
Unlike radar, the laser gun emits a very narrow beam of light,
so it can pinpoint a speeding car within traffic. The infrared
beam spreads out, but slowly and over a longer distance than a
radar signal.
The laser gun can acquire a speed reading as quickly as 0.3 sec-
onds, sometimes less. However, since it isn’t easy to accurately
aim at and hit a moving target, an operator often moves the
laser gun in several directions to get a reading. So laser signals
are emitted continuously for a few seconds for each speed
measurement. The GPS9000NZ can detect these light pulses
from as far away as 2.5 km, which is about four times the effec-
tive range of a laser gun (600m), and about ten times its average
operating range (150-250m).
Note: To be safe, do not ignore any warnings. Although there
are other types of radar signals that may cause interference,
when the GPS9000NZ detects a signal, be on the alert.
It is important to exercise caution at all times.
0.4 km
0.8 km 2.5 km
1.5m wide 3m wide 9m wide
GPS Qk newfont 2/13/02 4:05 PM Page 6