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Stay Alert Feature 

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

To engage (when the unit is not alarming):

• 

Press and hold the City button for approximately 2 seconds.  

Release the button during or immediately after the alert is  

given. 

  Display shows:  

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. Before unit alerts, press Dark to exit this feature. 

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

and the display shows:

• 

Press the DARK button to exit during the Get Rest message.

  

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. NEVER OPERATE A 

VEHICLE IF YOU ARE DROWSY.

OPERATION

Summary of Contents for GT-438Xi

Page 1: ...User Guide GT 438Xi High Performance LASER RADAR DETECTOR...

Page 2: ...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 Ple...

Page 3: ...Audio Level Adjustment Auto Quiet Quiet Modes Highway Mode City City 1 City 2 Modes Signal Strength Meter Alert Periscopes Dim Dark Modes VG 2 Mode Vehicle Battery Saver Mode Teach Tutorial Mode TFSR...

Page 4: ...ction Reset Features 24 Care and Maintenance 25 Troubleshooting Guide 25 26 Speed Monitoring Technologies 27 30 Are Detectors Legal POP Mode Laser Facts Laser Tips Radar Facts Other Speed Detection Sy...

Page 5: ...5 FEATURES 12 1 2 6 7 8 9 10 11 13 3 4 5 14...

Page 6: ...ed 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...

Page 7: ...ng 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 wi...

Page 8: ...n this type of surface To find out if your vehicle hasthistype ofwindshield check the vehicle s owner s manual or ask your dealer We recommend that you do not leave thesuctioncupbracketonthe windowind...

Page 9: ...onnection Plugthesmallendofthepowercordintotheunit spowerjack Plugthelargeendintothevehicle scigarettelightersocket NOTE Cord fits tightly into detector When installing the cord expect some resistance...

Page 10: ...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 spr...

Page 11: ...crease the volume continue turning the volume knob Memory Beep Confirmation All features selected except Stay Alert and Quiet are retained in memory Each time a button is pressed one beep confirms fea...

Page 12: ...ts Press Quiet before a signal is detected to engage Auto Quiet mode 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 c...

Page 13: ...e devices Press City to cancel Highway Mode and engage City Mode Press City again to enter City 1 Mode Press City again to enter City 2 Mode Press City a fourth time to cancel City 2 Mode and returns...

Page 14: ...eporting the display illuminates the band identification Icon and relative signal strength from 1 to 9 Alert Periscopes Whistler s Alert Periscopes provide an added attention getting visual alert The...

Page 15: ...l illumination to the display VG 2 Mode 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 aud...

Page 16: ...r has expired The detector will alert you with an audible and visual warning before it shuts off During this warning you can reset the timer by pressing any button If the unit has automatically turned...

Page 17: ...same band as police radar and provide a brief less intrusive alert to keep you informed and aware A signal strength indicator will help determine your proximity to the source without the continued ann...

Page 18: ...rate To lock out a PPS press the Quiet button during the Laser alert This will place an on the screen beside the PPS rate and Lock Out this signature ID Any new encounter with the same Laser Signatur...

Page 19: ...Mode If a segment is not required in your country it is recommended that you shut off the segment in Option Select Mode to minimize the chance of false alerts caused by some non police sources such a...

Page 20: ...y Warning System transmitters Alert Priority When two or more signals are received at the same time the alert priority is 1 Laser 2 Speed Radar 3 Safety Radar EXAMPLE If X band is alerting then sudden...

Page 21: ...egment 2 LSR 2 Y D YES Q NO LSR 2 On or OFF Laser Segment 3 LSR 3 Y D YES Q NO LSR 3 On or OFF Laser Segment 4 LSR 4 Y D YES Q NO LSR 4 On or OFF Laser Segment XR LSR XR Y D YES Q NO Traffipatrol ON O...

Page 22: ...If a button is pressed within 3 5 seconds the cycle is repeated Before unit alerts press Dark to exit this feature If a button is not pressed within 3 5 seconds an alarm sounds and the display shows...

Page 23: ...alert is continuous for a minimum of 3 seconds EXAMPLE Pulse Protection Pulse or instant on radar is more of a threat than conventional radar because it remains off until activated to measure the spe...

Page 24: ...t is now reset to the following features and settings 1 City Highway to Highway Mode 2 Dim Dark to full illumination of display 3 Auto Quiet OFF 4 SWS OFF 5 Vehicle Battery Saver OFF 6 Full Power Up s...

Page 25: ...s 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 Check fuse in power cable...

Page 26: ...use Ka Narrow Mode If your country uses all of Ka band switch to Ka Norm If alarms are POP Ka switch POP Mode to off If alarms are X or K band and due to radar based traffic flow sensors or radar bas...

Page 27: ...acquired A detector without POP Mode detection capability cannot respond to this brief transmission Laser Facts It s well documented that many radar guns cannot reliably provide the speed of a targete...

Page 28: ...er wavelength of 800 1000nm Laser Tips If you are the targeted vehicle a laser gun can often determine your speed within a few seconds after you receive an alert In this situation there is generally n...

Page 29: ...ar Aircraft The police measure the time it takes your vehicle to travel a known distance Radar Detector Detectors VG 2 Spectre The Interceptor VG 2 or simply VG 2 is one type of microwave receiver use...

Page 30: ...OTE The latest tool Police have to detect radar detectors is called Spectre Spectre can detect the majority of undetectable VG 2 laser radar detectors on the market It is the responsibility of the ind...

Page 31: ...is product Note This warranty does not include installation or reinstallation charges Service Under Warranty During the warranty period defective units will be repaired without charge to the purchaser...

Page 32: ...able A detailed description of the problem e g Unit performs self test but does not respond to radar A copy of your dated store receipt or bill of sale 3 Be certain your unit is returned with its seri...

Page 33: ...ment may also be made by MasterCard VISA or American Express personal checks are not accepted In the event repairs cannot be covered by the minimum 65 00 service fee you will be contacted by a Whistle...

Page 34: ...erating Temperature Range 10 C to 70 C 14 F to 158 F Power Requirements Operational 12 to 15 volts DC 250mA nominal 2 amp fuse Vehicle Battery Saver 30mA nominal Patents can be viewed here http www wh...

Page 35: ...s can be ordered directly from Whistler by calling 1 479 273 6012 or visiting our online store at www whistlergroup com Order Description Price 202151 Windshield Bracket Kit 9 95 206552 Power Cord 5 1...

Page 36: ...AR 72712 TEL 479 273 6012 FX 479 273 2927 www whistlergroup com CUSTOMER RETURN CENTER 1412 South 1st St Rogers AR 72756 Customer Service Tel 1 479 273 6012 Email info whistlergroup com For US Patent...

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