Toyota Rav4 Manual page 233

For example, nearby buildings and terrain
can interfere with FM reception. Power
lines or telephone wires can interfere with
AM signals. And of course, radio signals
have a limited range. The farther you are
from a station, the weaker its signal will
be. In addition, reception conditions
change constantly as your vehicle moves.
Here are some common reception prob-
lems that probably do not indicate a prob-
lem with your radio:
FM
Fading and drifting stations—Generally, the
effective range of FM is about 40 km (25
miles). Once outside this range, you may
notice fading and drifting, which increase
with the distance from the radio transmit-
ter. They are often accompanied by distor-
tion.
Multi−path—FM signals are reflective,
making it possible for two signals to reach
your antenna at the same time. If this
happens, the signals will cancel each oth-
er 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.
'08 Rav4_U (L/O 0802)
Station swapping—If the FM signal you
are listening to is interrupted or weak-
ened, and there is another strong station
nearby on the FM band, your radio may
tune in the second station until the origi-
nal 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 sta-
tion, causing the radio station to sound
alternately strong and weak.
Station interference—When a reflected sig-
nal 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 broad-
cast.
Static—AM is easily affected by external
sources of electrical noise, such as high
tension power lines, lightening, or electri-
cal motors. This results in static.
I n f o r ma t i o n P r o v i d e d b y :
FCC ID: BABBT010A
NOTE: This device complies with Part
15 of the FCC Rules. Operation is sub-
ject to the following two conditions, (1)
This device may not cause harmful in-
terference and (2) This device must ac-
cept any interference received, including
interference that may cause undesired
operation.
CAUTION
FCC WARNING:
Changes or modifications in construc-
tion not expressly approved by the
party responsible for compliance
could void the user's authority to op-
erate the equipment.
Radio frequently exposure. This de-
vice is approved for Mobile Applica-
tion only and, to comply with applica-
ble FCC radio frequency exposure
regulations, must be used with a dis-
tance of at least 7.9in. (20cm) be-
tween the antenna and the body of
any person at all time during use.
233
2008 RAV4 from Feb. '08 Prod. (OM42726U)