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16
Your Detector
Intro Operation Customer
Assistance
Warranty
Notice
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Nothing Comes Close to a Cobra
®
17
Maintenance
Your Detector
Intro Operation Customer
Assistance
Warranty
Notice
Main Icons
Secondary Icons
Strobe Alert
Special strobes mounted on the light bars of authorized emergency vehicles
(re trucks, police cars, ambulances) automatically change trafc signals as
the vehicle approaches an intersection. These strobes and the special strobe
detectors located on the trafc signals, introduced fairly recently by 3M and
Tomar, are already in use in more than 1000 cities nationwide. Cobra’s exclusive
Strobe Alert detector will detect these special strobes and give an emergency
vehicle alert.
When you receive such an alert, please watch for an approaching emergency
vehicle and pull over to allow it to pass. To inquire about coverage in your area,
contact your local re and police departments.
LIDAR (Laser)
The correct name for the technology that most people refer to as laser is
actually LIDAR, which stands for Light Detection and Ranging.
LIDAR operates much like radar. Its signal spreads out like a radar signal, though
not as widely. Unlike radar, LIDAR must have a clear line of sight to its target
vehicle throughout the entire measurement interval. Obstructions such as sign
posts, utility poles, tree branches, etc., will prevent valid speed measurement.
Some common questions about LIDAR include:
n Does weather have any affect on LIDAR?
Yes. Rain, snow, smoke, fog or airborne dust particles will reduce the
effective range of LIDAR and can, if dense enough, prevent its operation.
n Can LIDAR operate through glass?
Yes. Newer LIDAR guns can obtain readings through most types of glass.
However, the laser pulse also can be received through glass to trigger an
alarm by your detector.
n Can LIDAR operate while in motion?
No. Because LIDAR operates by line of sight, the person using it cannot drive
the vehicle, aim and operate the gun all at the same time.
n Is it legal for police to use LIDAR?
Yes, LIDAR is allowed to be used in all 50 States by police. Your detector
detects LIDAR (laser).
Maintenance
•
Your detector is designed and built to give you years of trouble-free performance
without the need for service. No routine Maintenance is required.
If your unit does not appear to be operating properly, please follow these
troubleshooting steps:
n Make sure the power cord is properly connected.
n Make sure the socket of your vehicle’s cigarette lighter is clean and free
of corrosion.
n Make sure the power cord’s cigarette lighter adapter is rmly seated in
your cigarette lighter.
n Check the power cord fuse. (Unscrew the ribbed end cap of the cigarette
lighter adapter and examine the fuse. If required, replace it with a 2-amp
fuse only.)
ESD9290_MANL.indd 16-17 12/15/09 3:01 PM