There Is More Noise Either On Am Or On Fm - Mitsubishi Eclipse Workshop Manual

AUDIO SYSTEM
- Troubleshooting
54-39
There
is
more noise either on AM
or on
FM.
o
1.
There
is
much noise onlY
on
AM
Due to differences in
AM
and FM systems, AM
is
more susceptible
to
noise
interference.
Were conditions such as
the
following present when
noise
was
received?
Continue to check for
static; when static
is
detected. check for the conditions listed above.
2.
There
is
much noise only
on
FM
Due
to differences in FM
and
AM systems,
FM
is
not as susceptible
as
AM to interference from
engines,
power lines,
lightning,
etc. On
the
other hand, there are cases due to the character-
istics
of
FM
waves
of
noise
or
distortion
generated
by typical noise interference
(first
fading and multipath). (Refer to A-2)
<Noise
(hissing) occurs
in weak signal areas such
as
mountainous regions,
but this is not due
to
a
problem
with the
radio.>
No
._ .
.1
'
'-
-
@
Mitsubishi Motors
Corporation Apr.
1991
o
a
a
a
a
a
a
A
motorcycle
was
Passtng.
Liqhtning was flashing
A-vehiclä passed closö
by,
but it appeared
to
be a
vehrcle
generatini a particularly'large amount of noise radiation.
Passed beneath
a power
line.
Passed
beneath
a telePhone line.
Passed
close by a signal.generator.
Passäd
close bü somä
otlier source of electrical
noise.
Passed
under a'bridse.
Yes
i
Noise prevention
on
the
radio
side
ts
i
difficuli.
if the problem
is
particularly
lf the problem
is
particularly
worse
than other
radios,
consult
a
service center.
FWUE9010