Whistler XTR-445 User Manual

Auto Shut Off Mode automatically shuts off the 

detector. The timer is reset:

1.  Each time the detector is turned off

2.  The optional power cord is unplugged

3.  Any button is pressed before the timer has expired.

The detector will alert you with an audible and 

visual warning before it shuts off. This auto off 

function can be programmed for the following: 

Off, 1, 2, or 3 hours. During this warning you can 

reset the timer by pressing any button. If the unit 

has automatically turned itself off, press the Power 

button to turn the unit back on. You can manually 

engage the Auto Shut Off Mode by pressing and 

holding the City button until one beep is heard.

Refer to “Option Select Mode” for instructions 

for changing the Auto Shut Off Mode settings. 

There are times when a radar detector can emit 

the same frequency as police radar and can 

cause your detector to falsely alarm. Sometimes 

a detector can display a signal  when picking up 

another radar detector in vehicle close by. The 

Whistler Filter Mode option provide a method 

to study the signal which will verify if the signal 

is a legitimate police radar or a false alert from 

another detector. 

Filter: Allows for normal filtering.  

Filter 1: Provides an extra step to analyze the signals 

that may come from other detectors.
Filter is the factory default and should provide adequate 

filtering for most conditions.  If you experience excessive 

alerts due to radar detectors in other vehicles, try the 

Filter 1 option. Filter Mode functions in both Highway 

and City Modes. See Option Select Mode to change 

Filter settings.

Entering Option Select Mode allows you to customize 

options such as Tone Select, Abbreviated Power Up 

Sequence, and VG-2 Mode. Press the Menu button to 

enter Option Select Mode. When selecting options, 

the Power/BL or Quiet/VOL buttons must be pressed 

within 20 seconds or Option Mode will automatically be 

exited. To enter: 

SWS

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

alertness. To engage (when unit is not alarming) :
• Press and hold the City button for

approximately 2 seconds. Release button during 

or immediately after the alert is given. Display 

shows:                      
  Within 30-60 seconds an alert is sounded; to  

show alertness, the driver must press either the 

City, Volume, 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 alarm 

sounds and the display shows:   
• Press Power to exit.

WARNING!!! 

personal injury or death. NEVER OPERATE A 

VEHICLE IF YOU ARE DROWSY. 

™

In communities where transmitters are located, 

the Safety Warning System

™

 displays over 60 

text messages. When Safety Radar is detected, 

a unique audio alert sounds.
Safety Warning System Text 

Example: Poor - Road - Surface.
Note: 

™ 

Because POP

™

 Mode radar utilizes the same

K or Ka band frequencies, POP

™

 Mode Alerts will be 

displayed as regular radar alerts.

When X, K, or Ka is detected, the band ID and 

signal strength are displayed. The audio alert 

is continuous and has a pattern like a geiger 

counter. The faster the beep, the closer or 

stronger the radar source.

When a laser signal is detected, the audio alert is 

continuous for a minimum of 3 seconds. 
 • The Display Shows:

Pulse (instant-on) radar is more difficult to 

detect than conventional radar because it 

remains ‘off’ until activated to measure the 

speed of a targeted vehicle.
When a pulse type transmission is detected, the 

Whistler detector sounds an urgent 3-second 

audio warning and the display shows:    

After the 3-second pulse alert, the standard alert 

pattern continues for as long as the signal is 

present.
It is important to respond promptly to a pulse 

alert, since warning time may be minimal.

™ 

detect VG-2.
When a VG-2 signal is detected, the detector ‘hides’ 

its own radiated signal and becomes undetectable 

by the VG-2.
Every 30 seconds, the detector checks for a VG-2 

signal. If a VG-2 signal is still present, the unit 

continues to hide and repeats the VG-2 alert. If no 

signal is detected, two beeps are provided, 

indicating an ‘all clear’ condition. During a VG-2 

Alert X, K, and Ka band signals cannot be 

received (Reference page 21 for VG-2 information).

When two or more signals are received at the 

same time, the alert priority is:

1.   Laser

2.  VG-2

3.  Speed Radar

4.  Safety Radar
Example:

If X band is alerting, then suddenly a VG-2 

signal is detected, the VG-2 warning will 

override the X band alert.

All user features can be reset to factory settings.

 • Unplug the Power Cord from the unit.

 • Remove the Batteries.

 • Press and hold Power/Dark and Quiet/Vol  

       buttons.

 • Plug the Power Cord into the unit.

 • Wait for 2 beeps.

 • Release Power/Dark and Quiet/Vol buttons.

  

 

 1.  Audio to level (4). 

 2.   Highway  Mode.

 3.  Auto Quiet Mode OFF.

 4.  VG-2 Detection Mode OFF.

 5.   SWS  OFF. 

 6.  Vehicle Battery Saver to 1 hour.

 7.  Full Power Up sequence.

 8.  Default TONE 3. 

 9.  POP OFF.        

10. Dim/Dark to full Brightness.

11. LED Periscopes to Flashing.

12. TFSR OFF

Your Whistler detector is expertly engineered 

and designed to exacting quality standards 

to provide you with reliable, trouble-free 

operation.  If your unit has been correctly 

installed following the guidelines in this manual, 

but is not operating optimally, please refer to 

the troubleshooting guide below.
PROBLEM:  No display or audio.

•  Make sure the batteries are installed with the 

  correct polarity.

•  Make sure the batteries are fully charged.