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The following factors can be considered as possible
causes of noise appearing at night.
1. Factors due to signal conditions: Due to the fact
that long-distance signals are more easily re-
ceived at night, even stations that are received
without problem during the day may experience
interference in a general worsening of reception
conditions. The weaker a station is the more
susceptible it is to interference, and a change to
a different station or the appearance of a beating
Is the noise still
obvious even with
the lamps OFF?
Do the following measures
eliminate the noise?
Tune to a station with a strong
l
signal.
Tune to a station with a strong
l
signal without completely
extending the antenna.
CHASSIS ELECTRICAL
No
Does the noise fade away when
the vehicle harness is moved away
from the radio chassis?
(if the harness is not in the proper
If there is more noise than other radios,
consult a service center.
sound* may occur.
Beat sound*: Two signals close in frequency
interfere with each other, creating a repetitious
high-pitched sound. This sound is generated not
only by sound signals but by electrical waves as
well.
Factors due to vehicle noise: Generator noise
2.
may be a cause.
position).
No
Yes
OK
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