Whistler XTR-440 - Manual (Page 7)

• Make sure the battery contacts are clean.
• Check the fuse in the plug; replace if
necessary with a 2 amp, 3AG type.
• Check the fuse for lighter socket; replace if
necessary.
• Make sure the lighter socket is clean.
PROBLEM: Unit alarms when vehicle hits
bumps.
• Make sure the batteries are seated properly.
• Make sure that the battery door is fully closed.
• Make sure the battery contacts are clean.
• Check for the loose lighter socket; tighten
and clean.
• Check the connections at both ends of the
power cord. Substitute another cord to
determine if the cord is defective. Return
defective cord to the factory.
PROBLEM: Audio alerts are not loud
enough.
• Cancel Auto Quiet Mode or City Mode.
• Check audio level setting (see page 7 ).
PROBLEM: Low Battery Life.
• One or more of the batteries may be
defective.
• See the battery life tips on page 6.
If difficulties occur which cannot be solved by
information in this Troubleshooting Guide, please
call Whistler Customer Service at 1-800-531-0004
or visit our FAQ page at
www.whistlergroup.com/faq-detectors.asp,
before returning your unit for service.
PROBLEM: Unit turns itself off
• See Auto Shut Off Mode on page 11
TROUBLESHOOTING
Care And Maintenance
During the summer months, avoid prolonged
exposure to direct sunlight by removing your unit
from the dash when your vehicle is parked for an
extended period of time. Do not spray water,
cleaners, or polishes directly onto the unit. The
spray may penetrate through the openings and
damage the unit. Also, do not use any abrasive
cleaners on the unit’s exterior.
As with all battery operated devices remove the
batteries when the unit will not be used for an
extended period of time. Damage caused by
leaky or improperly charged batteries are not
covered under warranty.
ARE DETECTORS LEGAL?
In Most States YES!
Laser-Radar detectors are legal in every state for
automobiles and light trucks (under 10,000 lbs.)
except Virginia and Washington, D.C., which
have local regulations restricting the use of
radar receivers in any vehicle.
The Federal Highway Administration (FHWA)
passed a nationwide regulation, effective
January 1994, which prohibited radar and laser
detector use in vehicles over 10,000 lbs.
CARE AND MAINTENANCE
FCC ID : HSXWH15
This device complies with part 15 of the FCC
Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference
received, including interference that may cause
undesired operation.
Important: FCC (Federal Communications
Commission) requirements state that changes or
modifications not expressly approved by
Whistler could void the user’s authority to
operate the equipment.
SPEED MONITORING
Radar Facts
A radar gun operates by transmitting radio
waves at certain frequencies which reflect off
objects and are 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 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 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 transmitted
and the vehicle’s speed is quickly acquired. A
detector without POP
™ Mode detection
capability cannot respond to this brief
transmission.
FCC INFORMATION
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