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14
SPEED MONITORING
Radar Facts
A radar gun operates by transmitting radio waves at
certain frequencies which reflect off objects and are
then picked up by the radar gun's receiving section.
When a radar beam reflects off a moving target, a
measurable frequency shift occurs. The radar unit converts
this shift into miles per hour to determine your vehicle's
speed. Currently, the FCC (Federal Communications
Commission) permits operation of traffic radar guns
at X Band (10.500 - 10.550 GHz), K Band (24.050 -
24.250 GHz), and Ka Band (33.400 - 36.000 GHz).
Note: A radar detector will not alarm if an officer is
not transmitting on any one of the above radar bands.
POP™ Mode
POP
Mode is a feature on some newer radar guns
™
operating on K or Ka bands. When the gun is in POP
Mode and activated, a brief burst of energy, less that
1/10 of a second, is transmitted and the vehicles's
speed is quickly acquired. A detector without POP
Mode detection capability cannot respond to this
brief transmission. This detector has the power to
report this new gun where other detectors cannot!
Laser Facts
It's well documented that many radar guns cannot
reliably provide the speed of a targeted vehicle that
is traveling in a group of vehicles. In contrast, a laser
gun can target a specific vehicle out of a line of traffic
and determine its speed. The advantage of laser
over radar in terms of target identification is the result
of the laser gun's narrow beam. A radar transmission
can cover more than a four-lane highway at a distance
of 1,000 feet, compared with a laser transmission
which covers about 3 feet at the same distance. For
best protection, keep these points in mind:
21
SPEED MONITORING
• Because you vehicle's license plate or headlights
are the laser gun's primary targets, mounting your
Whistler detector on the dashboard can improve
laser detection at short range.
• Do not follow closely behind any vehicle you cannot
see through. If you can't see past a vehicle ahead
of you, chances are your detector won't either.
• The receiving range of your laser detector will not
be the same as a radar detector. Laser guns are
most often used at short range.
Whistler Laser/Radar detectors receive all current laser
guns which operate at a laser wavelength of 905 +/- 10mm.
•Pro Laser
™
I II III
•LT1 20-20
Laser Tips
If you are the targeted vehicle, a laser gun can often
determine your speed within a few seconds after you
™
receive an alert. In this situation there is generally no
time to safely adjust your speed. However, if you are
™
traveling near or behind the targeted vehicle and
receive an alert, response time should be sufficient.
Any laser alert, regardless of duration, requires
immediate action!
Other Speed Detection Systems
Several techniques other than radar or laser are used
to measure vehicle speeds. When these methods
are being used, no detector can provide a warning.
These techniques include:
• Pacing - A patrol car drives behind you and matches
your driving speed.
• Vascar/Aircraft - The time it takes a vehicle to travel
a known distance is measured.
•Ultra Lyte
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WARRANTY INFORMATION
Consumer Warranty
This Whistler Laser/Radar detector is warranted to the
original purchaser for a period of one year from the date
of original purchase against all defects in materials and
workmanship (3 years for the 1793 SE). This limited
warranty is void if the unit is abused, modified, installed
improperly, if the housing has been removed, or if the serial
number is missing. There are no express warranties covering
this product other than those set forth in this warranty.
All express or implied warranties for this product are limited
to the above time. Whistler is not liable for damages
arising from the use, misuse, or operation of this product.
Service Under Warranty
During the warranty period, defective units will be
repaired without charge to the purchaser when returned
with a dated store receipt to the address below. Units
returned without dated store receipt will be handled
as described in section "Service Out Of Warranty."
Due to the specialized equipment necessary for testing
a laser/radar receiver, there are no authorized service
stations for Whistler brand detectors other than Whistler.
When returning a unit for service under warranty,
please follow these instructions:
1. Ship the unit in the original carton or in a suitable
sturdy equivalent, fully insured, with return
receipt requested to:
Whistler Repair Dept.
1201 North Dixieland Rd
Rogers, AR. 72756
Please allow 3 weeks turnaround time.
IMPORTANT: Whistler will not assume responsibility
for loss or damage incurred in shipping. Therefore,
please ship your unit insured with return receipt
requested. CODs will not be accepted!
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