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2. Operating System and Equipment
Scan function
-
If you short press the SCAN button, the
display will show the SCAN icon. Then,
the radio will search the station toward
high frequency from the current fre-
quency, and play the valid station for 10
seconds and then continue to search for
the next valid station.
-
In the process of scanning and playing,
if your favorite station is playing, short
press this button again to cancel the
scan function (SCAN icon disappears)
and continue playing the station.
AM/FM car stereo reception form
OMA28-0199
Electrical layer
Reflected wave
AM reflected wave
FM electric wave
FM electric wave
-
VHF channels on FM pass through the
ionosphere directly without reflection, but
once they hit high mountains and high-
rise buildings and other barriers, they will
produce reflections.
-
FM propagation distance is usually about
40~50 km. When stereo signals emit, the
propagation distance will be shorter.
OMA28-0200
Broadcasting station
Separation district ( weak electric field)
Building
Iron bridge
Mountain
-
The radio is far away the broadcasting
station, so the signals are too weak to be
received. As a result, the radio will only
receive noises.
-
When the vehicle driving through the
area with two strong stations with a
similar signal frequency which can be
received, the radio may lose sound sud-
denly or produce noise interference.
A28
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