Advertisement
Specifications
Dark Mode (on the Passport 8500)
If the Passport 8500 is placed in Dark Mode,
the Shifter Display Controller will provide
visual alerts for radar and laser. (Note: Radar
signals are a series of flashing LED's and do
not provide direction indication.)
Mute
Both the standard remote mute button, and
the mute button on the front of the Passport
8500, will provide Mute, and manual
"Receive Only" modes.
Error Messages (using Passport 8500)
Front ZR3 Error
During the start-up sequence, if one or
both of the front-mounted "Shifters" are not
communicating properly, the Passport 8500
will display "Front Shifter Error," accompa-
nied by a double beep tone. This sequence
will end, and the Passport 8500 will work
normally as a radar/laser detector.
Rear ZR3 Error
During the start-up sequence, if the
rear Laser Shifter is not installed, or stops
communicating, the Passport 8500 will
display "Rear Shifter Error," accompanied
by a double beep tone. This sequence will
end, and the Passport 8500 will work
normally as a radar/laser detector.
Features and Specifications
Operating Bands
• Laser 904nm, 33 MHz bandwidth
Laser Detection
• Quantum Limited Video Receiver
• Multiple Laser Sensor Diodes (6F, 3R)
Laser Transmitter
• Multiple Laser-Shifting Diodes (16F, 8R)
Display Type
• Hi-visible LED indicators
• Automatic Brightness Control
Power Requirement
• 12VDC, Negative Ground
Dimensions (Inches)
• Display/Controller: 4.2 x 1.4 x .55
• Front Laser Units: 4.65 x 1.8 x 0.8
• Rear Laser Unit: 6.0 x 1.0 x .65
6
How Laser Works
How Laser (Lidar) Works
Laser speed detection is actually LIDAR
(Light Detection and Ranging). LIDAR guns
project a beam of invisible infrared light.
The signal is a series of very short infrared
light energy pulses which move in a straight
line, reflecting off your car and returning to
the gun. LIDAR uses these light pulses to
measure the distance to a vehicle. Speed is
calculated by comparing the change in
distance over time.
LIDAR (or laser) is a newer technology
and is not as widespread as conventional
radar, therefore, you may not encounter
laser on a daily basis. And unlike radar
detection, laser detection is not prone to
"false" alarms. Because LIDAR transmits a
much narrower beam than does radar, it is
much more accurate in its ability to
distinguish between targets and is also more
difficult to detect. As a result, even the
briefest laser alert should be taken
seriously.
There are limitations to LIDAR
equipment. LIDAR is much more sensitive
to weather conditions than RADAR, and a
LIDAR gun's range will be decreased by
anything affecting visibility such as rain, fog,
or smoke. A LIDAR gun cannot operate
through glass and it must be stationary in
order to get an accurate reading. Because
LIDAR must have a clear line of sight and is
subject to cosine error (an inaccuracy
which increases as the angle between the
gun and the vehicle increases) police
typically use LIDAR equipment parallel to
the road or from an overpass. LIDAR can be
used day or night.
7
Advertisement
