Jeep 2007 Compass - Manual (Page 185)

menu. Once in the Personal Settings (Customer Program-
mable Features) menu, press and release (less than one
second) the EVIC button several times until “Calibrate
Compass (Yes)” is displayed. A long (longer than two
seconds) EVIC button Press will place the Compass in
calibration mode. The Cal indicator will come on con-
tinuously in the EVIC display to indicate that the com-
pass is now in the calibration mode and that the vehicle
can now be driven to calibrate. (A short EVIC button
press from the
ЉCalibrate Compass (Yes)Љ screen will exit
the EVIC Customer Programmable features, and return it
to its normal operating mode). To complete the compass
calibration, drive the vehicle in one or more complete 360
degree circles under 5 mph (8 km/h) in an area free from
power lines, large metallic objects, until the CAL indica-
tor turns off. The compass will now function normally.
RADIO GENERAL INFORMATION
Radio Broadcast Signals
Your new radio will provide excellent reception under
most operating conditions. Like any system, however, car
radios have performance limitations, due to mobile op-
eration and natural phenomena, which might lead you to
believe your sound system is malfunctioning. To help
you understand and save you concern about these “ap-
parent” malfunctions, you must understand a point or
two about the transmission and reception of radio sig-
nals.
Two Types of Signals
There are two basic types of radio signals... AM or
Amplitude Modulation, in which the transmitted sound
causes the amplitude, or height, of the radio waves to
vary... and FM or Frequency Modulation, in which the
frequency of the wave is varied to carry the sound.
UNDERSTANDING YOUR INSTRUMENT PANEL 185
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