Nissan Altima (L33) 2013-2018 Owners Manual: AM radio reception
AM signals, because of their low frequency, can
bend around objects and skip along the ground.
In addition, the signals can be bounced off the
ionosphere and bent back to earth. Because of
these characteristics, AM signals are also subject
to interference as they travel from transmitter
to receiver.
Fading: Occurs while the vehicle is passing
through freeway underpasses or in areas with
many tall buildings. It can also occur for several
seconds during ionospheric turbulence even in
areas where no obstacles exist.
Static: Caused by thunderstorms, electrical
power lines, electric signs and even traffic lights.
Range: FM range is normally limited to 25 – 30 mi
(40 – 48 km), with monaural (single channel) FM
having slightly more range than stereo FM. External
influences may sometimes interfere with FM
...
When the satellite radio is used for the first time
or the battery has been replaced, the satellite
radio may not work properly. This is not a malfunction.
Wait more than 10 minutes with satellit ...
FM radio reception
Satellite radio reception (if so equipped)