Lexus RX300 Manual page 176

Station swapping – If the FM signal you are listening to is
interrupted or weakened, and there is another strong station nearby
on the FM band, your radio may tune in the second station until the
original signal can be picked up again.
AM
Fading – AM broadcasts are reflected by the upper atmosphere –
especially at night. These reflected signals can interfere with those
received directly from the radio station, causing the radio station to
sound alternately strong and weak.
Station interference – When a reflected signal and a signal received
directly from a radio station are very nearly the same frequency, they
can interfere with each other, making it difficult to hear the
broadcast.
Static – AM is easily affected by external sources of electrical noise,
such as high tension power lines, lightening, or electrical motors.
This results in static.
Caring for your cassette player and tapes
For high performance from your cassette player and tapes:
Clean the tape head and other parts regularly.
D A dirty tape head or tape path can decrease sound quality and
tangle your cassette tapes. The easiest way to clean them is by
using a cleaning tape. (A wet type is recommended.)
AIR CONDITIONING AND AUDIO
Use high–quality cassettes:
D Low–quality cassette tapes can cause many problems, including
poor sound, inconsistent playing speed, and constant
auto–reversing. They can also get stuck or tangled in the cassette
player.
D Do not use a cassette if it has been damaged or tangled or if its
label is peeling off.
D Do not leave a cassette in the player if you are not listening to it,
especially if it is hot outside.
D Store cassettes in their cases and out of direct sunlight.
D Avoid using cassettes with a total playing time longer than 100
minutes (50 minutes per side). The tape used in these cassette is
thin and could get stuck or tangled in the cassette player.
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