Whistler 1675 - Manual (Page 11)

INSTALLATION
Compass Calibration Set-up
The unit will need to be calibrated in order for the com-
pass to provide accurate readings. To calibrate the unit,
perform the following procedure:
1. Mount the unit level in the center of the vehicle’s wind-
shield in which it will be used. Make sure there are no
other magnetic sources near the detector (i.e., speaker).
2. Select a large clear area (parking lot or field) without any
power lines.
3. While parked, press both volume buttons simultaneous-
ly until unit displays:
4. Drive vehicle slowly in two complete circles. If
calibration does not automatically finish press both volume
buttons simultaneously to complete calibration. The unit
will beep twice and display:
Note: If unit mounting is relocated in the vehicle, (i.e.,
visor to windshield mounting or dash mounting), or if the
unit is moved to another vehicle, you must recalibrate the
compass.
9
CAL DONE
NE 45
°
Show Cardinal Points and Headings
CAL MODE