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SPEED MONITORING

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NOTE:

It is the responsibility of the individual

radar detector owner to know and understand the
laws in your area regarding the legality of the use of
radar detectors.

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 fre-
quency 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 opera-
tion 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 offi-

cer 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 and Ka bands. When the
gun is in POP

Mode and activated, a brief burst

of energy, less that 1/15 of a second, is transmit-
ted and the vehicle’s speed is quickly acquired. A
detector without POP

Mode detection capabili-

ty cannot respond to this brief transmission. This
detector has the power to report this new gun
where other detectors cannot!

Total Band Protection

Complete Band Coverage that detects laser,
radar, VG-2 and safety radar bands.

SPEED MONITORING

SPEED MONITORING

21

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Laser Facts

It’s well documented that many radar guns can-
not 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 tar-
get 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:     

Because your 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 cur-
rent laser guns which operate at a laser wave-
length of 905 +/- 10mm.
•Pro Laser

I II III     •LT1 20-20           •Ultra Lyte 

Laser Tips

If you are the targeted vehicle, a laser gun can
often determine your speed within a few sec-
onds 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 pro-
vide 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.

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. This limit-
ed 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.

NOTE: 

Any damage to the remote battery or

battery leakage, water damage or any physical
damage is not covered under the warranty.
Check with the battery manufacturer about this
warranty.

Summary of Contents for XTR-220

Page 1: ...e time to record the serial number of the unit in the space provided in the war ranty section of the manual To fully acquaint yourself with the operation of your Whistler laser radar detector we recom...

Page 2: ...educe critical warning time Regular tinted glass does not affect reception Some windshields have an Instaclear or Electriclear type coating which affect radar signals Consult your dealer or the owner...

Page 3: ...lighter NOTE Cord fits tightly into detector When installing the cord expect some resistance Fuse Replacement The lighter socket plug is equipped with a replaceable 2 amp 3AG fuse located behind the...

Page 4: ...fourth time cancels City Modes and returns the unit to Highway Mode In City Mode weak speed safety radar signal give an initial alarm of two beeps and then remains quiet unless the signal becomes very...

Page 5: ...peated if the VG 2 signal is again detected During the period a VG 2 signal is detected a radar signal cannot be detected However because the VG 2 alert has confirmed that a patrol car is nearby you a...

Page 6: ...sent It is important to respond promptly to a pulse alert since warning time may be minimal VG 2 Audio Visual Alerts NOTE You must turn this feature on before it will detect VG 2 When a VG 2 signal is...

Page 7: ...unit Also do not use any abrasive cleaners on the unit s exterior In Most States YES Laser Radar detectors are legal in every state with the exception of Virginia and Washington D C which have local r...

Page 8: ...le 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 vehicl...

Page 9: ...r dated store receipt must accompany any unit sent in for warranty work Service Out of Warranty Units will be repaired at out of warranty service rates when The units original warranty has expired A d...

Page 10: ...rdwire Kit 10 9 95 for wiring to fuse box 206666 Modular Cord Package 17 95 includes coiled and straight cords and power adapter 159032 Package of 8 Suction Cups 2 95 402081 Non Skid Dash Pad 6 95 206...

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