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How Red Light Cameras Work

 

Red light cameras use three basic things: a camera, a 
device to trigger the camera and a computer. An 
intersection may have more than one camera to 
monitor traffic from multiple directions. The trigger is 
typically a series of wires buried just beneath the 
surface of the road. These wires are separated by a 
pre-set distance to create a magnetic field or 
induction loop. Once a vehicle is in the intersection, 
the loop or circuit becomes closed and alerts the 
computer to take a picture.

In some states, tickets are issued to the car’s owner, 
no matter who’s actually driving. In this case, the red 
light camera only needs to photograph the vehicle’s 
rear license plate. In other states, the actual driver is 
responsible for paying the ticket. In this case, the 
system needs a second camera in front of the car to 
get a shot of the driver’s face.

How Average Speed Cameras Work 

 

There are several types of fixed position speed 
cameras used, including radar, laser, induction-loop 
and photo-based. Radar and laser based cameras are 

typically mounted near the road and transmit a short 
range signal across the lanes monitored. Since this 
signal is transmitted across the road instead of down 
the road like with many handheld systems, detecting 
them in time is critical.

Another technology used is an induction loop system. 
This type of system utilizes wires buried just beneath 

the surface of the road to trigger a computer that 
calculates speed between the two points. Photo 
based systems take two sets of pictures of all passing 
vehicles between two separate fixed locations. Both 
sets of photographs are date and time stamped, 
which enables the system to calculate average speed 
between the two locations.

Fixed speed cameras can also be set up to monitor 
one to four lanes of traffic in the same direction. To 
achieve this, a sensor is installed in each lane, and a 
wide angle camera lens is used to photograph the 
vehicle that is speeding.

  Understanding Your Detector

17

16

  Troubleshooting

Problem 

Explanation/Solution

Detector beeps briefly at the same 

An X band motion sensor or intrusion alarm is located 

location every day, but no radar 

within range of your route.

source is in sight. 

Detector did not alert when a 

VASCAR (Visual Average Speed Computer and 

police car was in view. 

Recorder), a stopwatch method of speed detection, 

 

may be in use. 

 

Officer may not have radar or laser unit turned on. 

Detector’s audible alerts become 

Detector is in AutoMute mode. See “AutoMute” in the 

softer after the first few alerts. 

Settings & Preferences section for details.

The power-on sequence reoccurs 

A loose power connection can cause Passport Max 

while you are driving. 

International to be briefly disconnected and will 

 

retrigger the power-on sequence. Check all 

 

connections. 

 
You wish to restore the factory 

Press and hold the SEN and BRT buttons while 

default settings. 

powering on the detector. A “Restored” message will 

 

display, acknowledging the reset. 

 
The device will not turn on. 

Check that vehicle ignition is on. 

 

Check all connections. 

 
The display feels warm. 

It is normal for the device to feel warm. 

 
The display is blank.  

Passport Max International is in Dark mode. Press the 

 

BRT button to adjust the brightness. 

How GPS Works

 

Developed by the U.S. military, 
the global positioning system (GPS) is 
made up of 24 orbiting satellites. There 
are at least four satellites visible at any given 
time every day. A GPS receiver is designed to locate 
and receive data from four of these satellites. These 
data include the distance to your location from each 
of the satellites. Once the distance from each satellite 
is known, the receiver can calculate and pinpoint your 
exact location. 

Содержание PASSPORT Max International

Страница 1: ...o r m a n c e Chinese Spanish Russian I N T E R N A T I O N A L GPS Powered for Speed and Location Intelligence Designed in the USA ESCORT Inc 5440 West Chester Road West Chester OH 45069 800 433 3487 EscortRadar com 2014 ESCORT Inc ESCORT PASSPORT Max International Escort Live DEFENDER and SmartCord are trademarks of ESCORT Inc Manufactured and printed in Canada Features specifications and prices ...

Страница 2: ...ny other detector providing more advanced warning when you need it Voice and text alerts for multiple languages including English Spanish Chinese Russian High performance detection of latest radar threats including Strelka Iskra and MultaRadar High performance detection of latest laser threats including Amata Laser TruCam and Polyscan PASSPORT Max International gives you access to ESCORT s DEFENDE...

Страница 3: ...ent Mounting Bracket Controls Features Display OverSpeed alert setting that can be adjusted in Preferences Speed limit data will show here when connected to ESCORT Live MRK To mark a location for future alerts press MRK twice then VOL or to select the type of marker then MRK again to confirm Press twice while receiving marker alert to unmark Display Showing current speed Power Press to turn Max on...

Страница 4: ...turn off the speed display feature see Settings Preferences section for details If speed display is OFF PASSPORT Max will simply display your battery voltage in this location Speed display ON Current speed Speed display OFF Battery voltage Radar Sensitivity The SEN button allows you to select your preferred radar sensitivity Highway Auto or Auto No X In general ESCORT recommends Auto for everyday d...

Страница 5: ... feature allows you to modify your alert tones when traveling below a specified speed factory default is 20 mph see Settings Preferences for details For all alerts received while traveling below the specified speed PASSPORT Max international will sound a simple double beep alert Voice Alerts Passport Max International provides digital voice announcements for alerts and selection feedback If you pref...

Страница 6: ...y setting is for AutoMute to be on Passport Max International will show AutoMute as ON 4 Press the VOLUME or button to change from ON to OFF 5 To complete this change simply wait a few seconds without pressing a button The unit will display Completed to confirm your selection NOTE You can only access and customize the AutoMute feature while in the Advanced user mode See Overview of Preferences belo...

Страница 7: ... Off Speed camera HOV Lane On Off High Occupancy Lane Camera Clear Locations Marked Clear all user Marked locations Press SEN button to confirm Lockouts Clear all lockouts Press SEN button to confirm Defender Clear all DEFENDER data Press SEN button to confirm Format Clear DEFENDER database all markers and all lockouts Press SEN button to confirm Default Setting NOTE Exceptionsfor BandDefaultSetti...

Страница 8: ... may not eventually melt into a solid point even when the patrol car is directly behind you Detector alerts slowly for a while then abruptly You are approaching a radar unit concealed by a jumps to a strong alert hill or an obstructed curve Detector alerts intermittently Rate and A patrol car is traveling in front of you with a strength of alerts may be consistent or vary radar source aimed forwar...

Страница 9: ...cameras can also be set up to monitor one to four lanes of traffic in the same direction To achieve this a sensor is installed in each lane and a wide angle camera lens is used to photograph the vehicle that is speeding Understanding Your Detector 17 16 Troubleshooting Problem Explanation Solution Detector beeps briefly at the same An X band motion sensor or intrusion alarm is located location every ...

Страница 10: ...s The following accessories and replacement parts are available for Passport Max International Coiled SmartCord DirectWire SmartCord SmartCord Live SmartCord Live DirectWire SHIFTER ZR4 Laser Shifting System Replacement detector cases Visit EscortInc com for selection and pricing Parts Accessories ESCORT One Year Limited Warranty ESCORT warrants your Passport Max International device against all d...

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