Uniden LRD 766 - Manual (Page 22)

COMPASS CALIBRATION
To have the LRD 767/LRD 777 correctly display the direction which it is
facing you need to follow the calibration instructions stated below.
• Mount your LRD 767/LRD 777 on the windshield firmly.
• Press the audio button for three seconds until it scrolls COMPASS
CALIBRATION on the display panel. (LRD 777 gives you a voice
message saying “start calibration by turning your vehicle twice”.)
• Turn your vehicle slowly and make two circles.
(A trafficless site is recommendable for more accurate calibration.
Also avoid a large metallic object.)
• Press again the audio button to complete the calibration.
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CARE
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AD
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DETECTOR
*NOTE : If the LRD 767/LRD 777 is moved to another vehicle,
it must be recalibrated.