CHASSIS ELECTRICAL
-
Radio and Tape Player
54-161
i
A-3 Mixed with noise, only at night (AM).
L
ii
i
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
received 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 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.
2.
Factors due to vehicle noise: Generator noise
may be a cause.
the
lamps
OFF?
Yes
t
1
Do the following measures eliminate the noise?
1
yes
cl/
l Tune to a station with a strong signal.
l
Tune to a station with a strong signal without
com-
cletelv
extending the antenna.
No
I
Does the noise fade away when the vehicle
har-
ness
is moved away from the radio chassis?
(if the harness is not in the proper position).
No
If there is more noise than other radios, consult a service
center.
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