User's Manual

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8.2.10 Vehicle Ignition Interference
The G3™ has been designed to operate from the vehicle’s cigarette
lighter receptacle. However, some vehicles exhibit excessive
alternator noise at the lighter receptacle. In these rare cases, the
radar can exhibit erratic readings, especially when the vehicle’s
electrical system is operated under heavy load. Wiring an accessory
outlet directly to the battery minimizes the effect.
If you suspect your vehicle’s electrical system, contact Decatur
Electronics’ Customer Service Department for more information.
9. Field Tests
You can do the following tests to verify the operation and accuracy of
the G3™.
9.1 Operator-Requested Self-Test
Pressing the TEST button initiates a comprehensive system self-test,
which checks the numeric displays and runs a target and patrol
speed simulation.
The G3™ will not power down during a self-test and checks the
following:
DISPLAY TEST: Verifies that the digit segments and status LED lights
are working correctly and that none of the pixels in the number
segments are missing.
CIRCUITRY TEST: Checks the internal circuitry. If the unit passes all
internal checks, the message TEST PASS displays in the display
windows.
• The G3™ usually recognizes and ignores shadowing.
On the rare occasion that it appears, turning the
antenna on and off usually quickly remedies
shadowing.
G3™ User & Installation Manual