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TROUBLESHOOTING GUIDE

ARE DETECTORS LEGAL?

SPEED FACTS 

17

PROBLEM:

Unit alarms when using vehicle

electrical accessories 

(brakes, power mirrors/

windows, directionals, horn, etc.).

• Vehicle’s electrical system, including battery 

and alternator, may have electrical noise.  
Install a filter capacitor

(470mfd. 25 volt or larger

capacitance value) 

on the back of the lighter socket.

PROBLEM:  

Unit alarms when vehicle hits bumps.

• Check for loose lighter socket; tighten and clean.
• Check connections at both ends of power cord.
Substitute another cord to determine if cord is 

defective. Return defective cord to the factory.

PROBLEM:

Unit gives laser alert when accelerating.

• Possible bad or low quality distributor cap.  

Replace with high quality cap.

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.

Care & 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 units exterior.

19

In Most States YES!

Laser detectors are completely legal in every state
when used in automobiles or light trucks (under
10,000 lbs.). Similarly, when used in automobiles or
light trucks, radar detectors are legal in almost every
state. Exceptions are Virginia and Washington, D.C.,
which have local regulations restricting the use of
radar receivers in any vehicle.  Concerning trucks
over 10,000 lbs., the Federal Highway Administration
(FHWA) issued a regulation, effective January, 1994
which prohibits radar and laser 
detector use in these types of vehicles nationally.
Prior to the FHWA regulation, laws existed in the
state of New York restricting the use of radar 
detectors in trucks over 18,000 lbs. and in the state
of Illinois in trucks over 26,000 lbs.

FCC Information

FCC ID HSXWH01 - SRT 30R
FCC ID HSXWH10 - SRT 30R
FCC ID HSXWH14 - SRT 35R

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.
(2) This device must accept any interference 

received, including interference that may cause 
undesired operation.

IMPORTANT

FCC requirements state that changes or modifications
not expressly approved by Whistler could void the
user’s authority to operate the equipment.

18

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.

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, listed on the following section, in mind:

Summary of Contents for SRT-30R

Page 1: ...the unit in the space provided in the warranty section of the manual INTRODUCTION Dear Whistler Owner For many of us a vehicle is more than just transportation It can be a mobile office communication...

Page 2: ...s 15 Troubleshooting Guide 16 17 Care Maintenance Are Detectors Legal 18 FCC Information Speed Facts 19 21 Radar Facts 19 Laser Facts 19 Other Speed Detection Systems 20 21 Warranty Information 22 24...

Page 3: ...unit is receiving an X band signal 14 K band Indicator shows the unit is receiving a K band signal 15 Ka band Indicator Shows the unit is receiving a Ka band signal 16 H Unit is in Highway mode 17 C C...

Page 4: ...d then on again you do not have to re enter them Auto Quiet Mode Pressing QUIET before a radar signal is detected provides an alternate alert pattern consisting of four beeps indicating X K Ka or Safe...

Page 5: ...SRT 35R Only The Stay Alert Feature is designed to test a driver s alertness To engage when unit is not alarming Press and hold City for less then 2 seconds The H or C will flash indicating Stay Aler...

Page 6: ...inates the first LED and the last LED of the Signal Strength Indicator The SRT 35R Seven Segment display shows an S and a decimal point when a Safety radar signal is detected N No ot te e You will not...

Page 7: ...rohibits radar and laser detector use in these types of vehicles nationally Prior to the FHWA regulation laws existed in the state of New York restricting the use of radar detectors in trucks over 18...

Page 8: ...whistlergroup com I It t i is s t th he e r re es sp po on ns si ib bi il li it ty y o of f t th he e i in nd di iv vi id du ua al l r ra ad da ar r d de et te ec ct to or r o ow wn ne er r t to o k...

Page 9: ...accepted In the event repairs cannot be covered by the minimum 35 00 service fee you will be contacted by a Whistler technical service specialist who will outline options available to you If you elec...

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