Specifications
Nothing comes close to a Cobra
®
21
Maintenance
20
English
Maintenance
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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.)
Specifications
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Band And Frequencies
Band Frequencies
X Band 10.525 ± 0.050 GHz
K Band 24.125 ± 0.125 GHz
Safety Alert 24.070 ± 0.010 GHz
Traffic Warning
24.110 ± 0.010 GHz
System
24.190 ± 0.010 GHz
24.230 ± 0.010 GHz
Ka Band 34.700 ± 1.300 GHz
Laser 910 ± 50 nm
Strobe 700 ± 300 nm
Unit Dimensions And Weight
Dimensions* (H x W x D) Weight*
1
1
⁄3" x 2
3
⁄4" x 4
1
⁄3" 5.11 oz.
(34 mm x 70 mm x 110 mm) (145 g)
* Dimensions and weight measurements are approximate.
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.
Y
our Detector
Y
our Detector