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Photo Radar Technical Information
Specifications are for the AutoPatrol PR-100, made by American Traffic Systems.
Power
Current: 5 amps
Voltage: 10 - 15V DC.
Radar unit
Transmission frequency: 34.6 gHz (+/- 10 mHz).
Transmitted power: 2.5 watts (max).
Half-power beam width: 5° horizontal, 15° vertical
Secondary lobe attenuation: Approximately 38 decibels
Measuring angle to direction of travel: 22.5°
Range: Up to 300 feet
Operating Unit
Measuring Direction: Approaching or receding traffic
Modes of operation: Every vehicle or selected individual release
Measuring range: 15 - 155 mph.
Accuracy: Up to 100 mph: +/- 1 mph, over 100 mph, +/- 1%
User Interface
Device: Notebook computer
Traffic data: All vehicles, time, speed
External Speed Display
Digit size: 9 or 12 inches
Mounting location: Variable
Central Control Unit
Measuring range: 15 - 155 mph
Measuring accuracy: Up to 100 mph: +/- 1mph; over 100 mph +/- 1%
Photo (still) Equipment
Film type: 35 mm, color or black-and-white
Lens: 150mm standard
Shutter speed: 1/1000 second, flash synchronized
Film roll length: 100 feet (650 exposures)
Film advance: <1/2 second
Flash Duration: 1/5000 - 1/500 second
Flash Output: 50 - 400 watts
Recharge time: 1/3 second
Video Equipment
Format: NTSC
Recorder: Standard VHS
Monitor: Color
Overlay: All traffic speeds, camera viewfinder, operator, date, time, location.
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Information
- Photo Enforcement Studies
- Photo Enforcement Articles
- Alternatives to Red-Light Cameras
- Regulating Red-Light Cameras
- Photo Radar Technical Information
- $10,000 Ticket Camera Challenge
- Is Your Camera Ticket A Fake?
Related Links
www.thenewspaper.com
This self-described "journal of the politics of driving" is a tremendous resource. Photo Enforcement is the author's primary focus.
www.highwayrobbery.net
This site discusses red-light cameras, including their common errors. It's great for anyone fighting a camera ticket, especially in California.
www.photoenforced.com
This site features a user-maintained list of red-light cameras and photo radar locations throughout the United States. You can even add to the list.
www.poi-factory.com
POI Factory has a free database of camera locations for GPS users. The data is cooperatively maintained and free to active participants on the site.
www.scamera.org
A red-light camera information site based out of Canada.