261
1. AUDIO/VIDEO SYSTEM OPERATION
5
AUDIO/VIDEO SYSTEM
PRIUS_Navi_OM47A72U_(U)
14.06.16 20:56
12. AUDIO/VIDEO SYSTEM OPERATING HINTS
Fading and drifting stations: Generally, the
effective range of FM is about 25 miles (40
km). Once outside this range, you may no-
tice fading and drifting, which increase with
the distance from the radio transmitter.
They are often accompanied by distortion.
Multi-path: FM signals are reflective, mak-
ing it possible for 2 signals to reach the ve-
hicle’s antenna at the same time. If this
happens, the signals will cancel each other
out, causing a momentary flutter or loss of
reception.
Static and fluttering: These occur when
signals are blocked by buildings, trees or
other large objects. Increasing the bass
level may reduce static and fluttering.
Station swapping: If the FM signal being
listened to is interrupted or weakened, and
there is another st rong station nearby on
the FM band, the radio may tune in the
second station until the original signal can
be picked up again.
NOTICE
● To ensure correct audio/video system
operations:
• Be careful not to spill beverages over
the audio/video system.
• Do not put anything other than an appropriate disc into the disc slot.
• The use of a cellular phone inside or near the vehicle may cause a noise
from the speakers of the audio/video
system which you are listening to.
However, this does not indicate a
malfunction.
RADIO RECEPTION
Usually, a problem with radio reception
does not mean there is a problem with
the radio — it is just the normal result
of conditions outside the vehicle.
For example, nearby buildings and ter-
rain can interfere with FM reception.
Power lines or phone wires can inter-
fere with AM signals. And of course, ra-
dio signals have a limited range. The
farther the vehicle is from a station, the
weaker its signal will be. In addition, re-
ception conditions change constantly
as the vehicle moves.
Here, some common reception prob-
lems that probably do not indicate a
problem with the radio are described.
FM
