Whistler CR75 Leaflet

The Stay Alert Feature is designed to test a driver’s

alertness. To engage (when the unit is not alarming):

DISPLAY SHOWS:

•  Press and hold the City button for approximately 2 

seconds. Release the button during or immediately

after the alert is given. 

Within 30-60 seconds, two beeps are sounded; to  

show alertness, the driver must press either the City, 

Menu, or Quiet buttons within 3-5 seconds. If a button is 

pressed within 3-5 seconds, the cycle is repeated.

If a button is not pressed within 3-5 seconds, an 

alarm sounds.  
DISPLAY SHOWS:
•  Press the Dark button to exit the Stay Alert

feature.

WARNING!!! Stay Alert is NOT intended as a substitute for

adequate rest. You should NOT operate a vehicle if you are 

drowsy. During extended periods of vehicle operation, you 

should take frequent breaks. Improper reliance on the Stay Alert

feature may result in vehicle damage, personal injury or death.

™

™

In communities where transmitters are located, 

the Safety Warning System

™

 provides over 60 text 

messages. When Safety Warning System

™

 is detected, 

the audio alert sounds like a geiger counter.
Safety Warning System Text Example: Poor - Road

- Surface.
Note: Not all areas have Safety Warning System

™

 

transmitters.

• Mounting Guidelines 

5 

• Windshield Mounting 

5-6

• Power Connection and Fuse Replacement 

7

• Power On Self Test & Volume  

8

• Dim/Dark Mode 

 8

• Setting Saver 

 8

• Integrated Real Voice

®

    

  

8

• Feature Engaged Confirmation 

 9

• Quiet/Auto Quiet Mode 

 9

• Traffic Flow Signal Rejection (TFSR) 

 9-10

• City/City 1/ City 2 Mode 

10

• Highway Mode 11

• Alert Periscopes 

11

• VG-2 Mode 

11 

• Selectable Vehicle Battery Saver Mode 12

• Teach/Tutorial Mode 12

• Compass Mode 12

• Option Select Mode 

13

• Stay Alert Feature 14

• Safety Warning System

TM

 14

• Compass Calibration Setup 

15  

™

• Speed Radar Audio/Visual Alerts 

16

• Laser Audio/Visual Alerts 16

• Pulse Protection

®

 16

• Alert Priority

17

• Radar Facts 20

• POP

™

 Mode 

20

• Laser Facts 21-22

• Other Speed Detection Systems 22

• Radar Detector Detectors 22-23

•  Mount the unit as low as possible near the    

  center of the windshield.  

•  Do not mount the unit behind wipers, 

  ornaments, mirrored sunscreens, etc. These  

  obstructions have metal surfaces which can   

  affect radar and laser signals and reduce 

 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’s 

  manual supplied with your vehicle to determine  

  if your windshield has this coating.

•  Avoid placing the unit in direct contact with the  

 windshield.

•  To reduce the possibility of theft, conceal the  

  unit when not in use.

•  Install the two suction cups and rubber bumper    

  onto the bracket by fitting them into their holes.

•  Press the suction cups onto the windshield at the  

  location you have chosen.

 (Continued)

Important: Some newer cars have a plastic safety

coating on the inside of the windshield. The 

windshield bracket may leave permanent marks on 

this type of surface. To find out if your vehicle has 

this type of windshield, check the vehicle’s owner’s 

manual or ask your dealer. We recommend 

that you do not leave the suction cup bracket on 

the window in direct sunlight. If the detector is 

removed, this may cause blistering of the dash 

in some vehicles.

•  Slide the detector onto the bracket until it locks into

 place.

•  If necessary, the unit may be leveled by bending   

  the windshield bracket. Press the bracket release   

  button and remove the detector before bending.

Each time a button is pressed, one beep confirms 

feature “on”, two beeps confirm feature “off”.

Quiet mode cancels audio during an alert 

and any new alert within 20 seconds. After 20 

seconds of no alerts, the audio is restored for 

any new alerts.

• Press Quiet to cancel the audio.

• Press Quiet a second time during an alert to  

 restore the standard audio alert pattern; or   

  turn the unit off, then on.

Auto Quiet mode reduces the selected audio level 

approximately 5 seconds after a radar signal is detected. The 

alert for any new signal within 20 seconds will resume at the 

lower level. Auto Quiet mode does not affect laser alerts.

• Press Quiet (before a signal is detected) to

  engage Auto Quiet. 

• Once the Auto Quiet mode is engaged, you may

   cancel the audio alarm by pressing Quiet.

• Press Quiet (when the unit is not alarming) to  

   cancel Auto Quiet mode.

Recently, many new products operate on X

or K band causing nuisance alerts to radar 

detectors. Some of these are radar based

Traffic Monitoring Systems mounted to poles

alongside the highway and others are K 

Band Lane Change Assistants and Blind Spot

Detectors found on some automobiles.  When 

turned on in option mode, helps eliminate 

excessive alerts from erroneous X and K-band 

sources. Traffic flow monitoring systems are 

getting more common. 

Many of these systems generate radar signals to 

measure the flow of traffic across multiple lanes. 

Most detectors will alert you to it unnecessarily. 

This rejection feature examines the incoming 

signal and will aid in reducing the alerts to such 

sources.

We suggest you turn TFSR on if you are experiencing excessive 

X or K band false alerts every half mile or so along stretches of 

roadway that contain these traffic flow sensors.

 

Whistler’s Three Stage City Mode is designed

to reduce the annoyance of automatic door 

openers, intrusion alarms and other devices which 

share frequencies with police radar. Generally, X 

band is used for these devices.
• Press City button to cancel Highway Mode

  and engage City Mode. 

• Press City button again to enter City 1 Mode

• Press City button again to enter City 2 Mode

•  Press City button a fourth time to cancel City 2

  Mode and returns the unit to Highway Mode. 
In City Mode, weak speed/safety warning system 

signals give an initial alarm of two beeps, and 

then remains quiet until the signal becomes very 

strong.  When the signal strength increases, two 

additional beeps are provided. City 1 and City 2 

Modes operate the same as Highway Mode, but 

in City 1 Mode, only the X band is reported at high 

levels. In City 2 Mode, X-band is not detected.

Caution: Some towns/small cities may still be

using X band radar. City Modes do not change 

the audio alert for laser or VG-2.

Highway mode provides full audio warnings any 

time radar (X, K, Ka, Safety Warning System) or

laser signals are detected, and is recommended 

for open road driving. 

For more information on City and Highway 

mode, please visit our FAQ page on our 

website:

www.whistlergroup.com

Whistler’s Alert Periscopes  provide an added 

attention getting visual alert. The two extra LEDs 

flash on and off when the unit alarms to provide a 

unique visual alert. This alert can be programmed, 

through the Option Select Mode to: 1. flash

for all alarms, 2. remain on, or 3. turn LEDs off 

completely.

See Option Select Mode to turn this feature on/

off. When a VG-2 signal is detected, the VG-2 

alert is sounded and the display flashes “VG-2”. 

After 3 seconds the audio is canceled and the 

display no longer flashes. This cycle is repeated 

if the VG-2 signal is detected again  . 
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 are already aware of the 

potential for speed monitoring and can adjust 

your speed accordingly. (See page 17 for more

information)

The Vehicle Battery Saver Mode automatically shuts

off your detector within 3 hrs. The timer is reset 

if the detector is turned off, unplugged or any 

button is pressed before the timer has expired.  The 

detector will alert you with an audible and visual 

warning before it shuts off. During this warning, 

you can momentarily reset the timer by pressing 

any button. If the unit has automatically turned off, 

press any button to turn the unit back on.

      

Refer to “Option Select Mode” for instructions

for deactivating battery saver mode feature. 

Provides simulated alerts for each type of signal.

 • Press City and Quiet buttons simultaneously

 • Display Shows:

 • Press Dark button to exit.

The unit is programmed from the factory in 

“Combo Mode”. COMBO mode means that the 

unit provides both compass headings as well as 

detects laser/radar signals.Through the “Option 

Select Mode”, either laser/radar or compass fea-

tures can be turned off; RADAR equals detection

of all police bands and laser; COMPASS equals

no detection of police laser/radar.

Note: The unit must be calibrated to provide accurate 

compass heading. See Compass Calibration Set-up

section on page 15.

Windshield

Mounting

Each time your Whistler detector is turned on, 

an automatic self-test sequence confirms that 

the speaker and visual displays are functional. 

To increase the volume, continue turning the 

volume knob. 

 

Dim/Dark Mode reduces the illumination of the 

display.

•  Press the Dark button to reduce illumination

  to a Dim setting.

•  Press the Dark button a second time to

  engage Dark Mode. The display illumination  

  is further reduced.
Dim or Dark Mode can be engaged during an 

alert. In Dark Mode, the display goes dark for 

as long as a signal is being detected and for 20 

seconds after, then the display returns to the 

dimmer setting.
•  Press the Dark button a third time to restore

  full illumination to the display.

Setting Saver stores your personalized settings

so that when the detector is turned off and then 

on again, you do not have to re-enter them.

When selected, Real Voice

®

 will be used to 

articulate the following:
  1.  Band Identification

 2.  Safety Warning System messages

 3.  Feature Selection

Note: In certain cases, the voice message does 

not replicate the text message.

Rubber Bumper

 

Press the Menu button to enter Option Select

Mode. Each press of the Menu button changes to 

the next selectable feature.
The Dark (D) button and the Quiet (Q) button turns 

the feature ON/OFF or Blinking. A button must be 

pressed within 20 seconds or Option Select Mode

will automatically be exited.

IMPORTANT: Make sure the unit is level

•  Plug the small end of the power cord into the    

  unit’s power jack.

•  Plug the large end into the vehicle’s cigarette    

  lighter socket.

Note: Cord fits tightly into detector. When 

installing the cord, expect some resistance. 

The lighter socket plug is equipped with a 

replaceable 2 amp, 3AG fuse located behind the 

silver tip. To replace the fuse, carefully unscrew 

the tip of the plug.

Important: Unscrew slowly. The tip contains a 

spring which may fly out when disassembling. 

Insert the new fuse with the spring and screw 

on the tip. With use, screw cap on plug may 

loosen. Retighten occasionally.

Note: Press and hold Menu button to exit 

Option Select Mode.

1.  Bracket Release Button – Provides quick  

      and easy release of the mounting bracket.

2.   Speaker – Provides distinct audio warnings for  X,  

 

K, Ka band radar, safety warning system and laser.

3.  Mounting Bracket Location – Slot holds  

       mounting bracket firmly.

4.  Radar Antenna – Compact, high-efficiency  

       antenna receives radar signals.

5.  Front Laser Antenna – High gain optical lens  

        provides increased sensitivity and field of view for  

        leading-edge laser detection.

6.   Rear Laser Antenna – An integrated optical  

      wave-guide provides superior detection of  

      laser signals transmitted from behind.

7.  City Button - Reduces the annoyance of  

      false alerts typically encountered in urban  

       driving areas.

8.  Quiet Button - Pressing QUIET before a  

      signal is detected engages Auto Quiet Mode  

       which automatically reduces the audio level after  

       the initial  warning to a low audio level setting.  

       Pressing QUIET during a radar/laser encounter  

       silences audio alerts, while allowing visual  

      alerts to keep you informed.

9.  Power/Volume - Turns unit on/off and  

      adjusts audio level.

10. Dim/Dark Button - Engages Dim/Dark  

      mode display options.

11. Menu Button - Enters option select mode.

12. Numeric Icon Display – Provides distinct  

        visual confirmation of signals detected, signal  

        strength, and engaged modes of operation.

13. Alert Periscopes - Provides an  

      additional attention getting visual alert.

14. Power Jack – Provides connection for the  

 

power cord.

•  Digital Compass

•  Total Band Protection

TM

•  OLED Text Display

•  Detects POP

TM

 Mode

•  360

o

 Maxx Coverage

•  3 City Modes/Highway Mode

•  Quiet/Auto Quiet Mode

•  Dim/Dark Mode

•  Real Voice

 

•  VG-2 Detection

• Stay Alert

TM

• Setting Saver

•  Selectable Vehicle Battery Saver

TM

• Safety Warning System

TM

• Alert Priority

• Alert Periscopes

• Total Laser Detection

• Traffic Flow Signal Rejection

• High Gain Lens

CAL

CAL 

MODE

Press Both

D & Q

Starts Compass

Calibration

COMBO

COMBO

D or Q

to select

Combo - Radar&Compass

Radar - Radar Only

Compass - Compass Only

TONE

TONE 3

D or Q

to select

Tone 1, 2, 3

(3 Different Tone Patterns)

TEST

TEST

YES

D = YES

Q = OFF

X, K, Ka Audio Tones

One Beep During Power Up

VG-2

VG-2 OFF

D = ON

Q = OFF

Turn VG-2 = ON

Turn VG-2 = OFF

SWS

™

SWS

OFF

D = ON

Q = OFF

Turn SWS

™

 = ON

Turn SWS

™

 = OFF

POP

™

POP

OFF

D = ON

Q = OFF

POP

™

 = ON

POP

™

 = OFF

ALERT

PERISCOPES

LEDBLNK

D or Q

to select

Alert Periscopes ON

(ON, OFF or Blinking)

VOICE

®

VOICE

ON

D = ON

Q = OFF

Real VOICE

®   

 Engaged

Real VOICE

®     

Disengaged

BATTERY

SAVER

B SVR

ON

D = ON

Q = OFF

Battery Saver = ON

Battery Saver = OFF

TFSR

TFSR

OFF

D = ON

Q = OFF

TFSR = ON

TFSR = OFF (default)

Dear Whistler Customer,

If you have questions concerning the operation of 

this Whistler product please call:

Monday - Friday • 8:00 am - 5:00 pm CT

or visit our website

Please keep the receipt in a safe place.  You 

may register your product online at

www.whistlergroup.com.  For warranty verification 

purposes, a copy of your dated store receipt must 

still accompany any unit sent in for warranty work.  If 

the unit is returned without a dated store receipt, an 

out of warranty service charge applies. Note: Your

warranty period begins at the time of purchase.  

The warranty is validated only by the dated store 

receipt!  Please record the serial number of the 

unit in the space provided in the warranty section 

of the manual.

To fully acquaint yourself with the operation of 

your Whistler detector and to better understand 

the differences between detecting radar, laser, 

and safety radar signals, we recommend reading 

this entire manual or visiting our F.A.Q. page on 

our website www.whistlergroup.com

Enjoy your Whistler detector and please drive 
safely.

Sincerely,

The Whistler Group, Inc.