Maintenance; Specifications - Cobra 14 BAND XRS 878 Operating Instructions Manual

High-performance digital radar/laser detector with xtreme range superheterodyne technology
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Understanding Radar and Laser
and Maintenance
Your Detector
Intro
Operation
Customer
Warranty
LIDAR (Laser)
Assistance
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
Secondary Icons
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:
Does weather have any affect on LIDAR?
Notice
Yes. Rain, snow, smoke, fog or airborne dust particles will reduce the
effective range of LIDAR and can, if dense enough, prevent its operation.
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.
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.
Is LIDAR legal to use?
Yes. It is legal in all 50 states.

Maintenance

Maintenance of Your Radar Detector
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:
Make sure the power cord is properly connected.
Make sure the socket of your vehicle's cigarette lighter is clean and
free of corrosion.
Make sure the power cord's cigarette lighter adapter is firmly seated
in your cigarette lighter.
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.)
20 English
Your Detector
Intro
Operation

Specifications

Band and Frequencies
Secondary Icons
Notice
This radar detector is covered by one or more of the following U.S. patents:
5,497,148; 5,594,432; 5,612,685; 6,078,279; 6,094,148. Additional patents
may be listed inside the product or pending.
Specifications
Customer
Warranty
Assistance
Band
Frequencies
X Band
10.525
K Band
24.125
Safety Alert
24.070
Traffic Warning
24.110
System
24.190
24.230
Ka Band
34.700
Ku Band
13.435
VG-2
11.500
Spectre I
13.300
Spectre IV+
Not Disclosed
Laser
910
Nothing Comes Close to a Cobra
± 0.050
GHz
± 0.125
GHz
± 0.010
GHz
± 0.010
GHz
± 0.010
GHz
± 0.010
GHz
± 1.300
GHz
± 0.035
GHz
± 0.250
GHz
± 0.200
GHz
± 50
nm
®
21

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