Mercedes-Benz 420 SEL 1988, Owner'S Manual

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To store stations in memory
Any FM station can be stored onany
button marked through by
first tuning in the desired station,
depressing the button desired and
holding it until the display has
changed from the “old” setting to a
“blank” and then to the new station to
be stored.
Showing the “old” setting first allows
for reconsideration of the decision to
store. If it is desirable to leave the
“old” station in memory rather than
exchanging it with the “new” one,
quickly release the button. The “old”
station will remain in memory.
Any AM station can be storedsim i-
larly on any button marked
through [JJJ] .
Stereo reception
The stereo indicator m ^n'1 lights up
if a stereo program in the AM or FM
band is received.
Note: The radio receives AM stereo
programs which are broadcast via the
C-Quam®* AM stereo system.
The radio is equipped with an auto­
matic stereo/mono blend switch that
electronicaliy switches to mono for
clear reception if a weak signal is
received.
The stereo indicator will remain lit
even if the receiver has changed to
the mono mode and will turn off at an
antenna signal considered insufficient
to provide acceptable reception
quality.
Although FM is normally static free,
reception quality can be limited by
geographic and atmospheric condi­
tions, station strength and distance
from the transmitter. Buildings or
other obstructions can cause momen­
tary static, flutter or station swapping.
If good reception cannot be obtained,
tune to a stronger station.
In the event that it is important to lis­
ten to a weak station or to a strong
station that is masked by terrain-in­
duced noise or interference problems,
the following steps can be taken to
increase the listenability of the station.
Fringe area AM and FM reception of
weak stations can be improved by
first insuring that the antenna is at its
maximum height and then reducing
the treble and bass settings as re­
quired to filter out as much back­
ground noise as is needed.
FM noise problems that are caused
by urban and hilly conditions may be
reduced by lowering the treble setting
until the pops and hisses associated
with this type of terrain are reduced to
acceptable levels.
AM reception difficulties caused by
strong adjacent stations or nighttime
atmospheric conditions may be re­
duced by fine tuning the selected sta­
tion with the two fine tuning buttons.
The tuning sensitivity button Q has
no influence on reception quality.
* C-Quam® is a registered trademark of Motorola, Inc.
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