roof INFINITI QX50 2019 Navigation Manual

from a station transmitter, the signals will
tend to fade and/or drift.
Static and flutter: During signal interference
from buildings, large hills or due to antenna
position, usually in conjunction with in-
creased distance from the station transmit-
ter, static or flutter can be heard. This can be
reduced by lowering the treble setting to
reduce the treble response.
Multipath reception: Because of the reflec-
tive characteristics of FM signals, direct and
reflected signals reach the receiver at the
same time. The signals may cancel each
other, resulting in momentary flutter or loss
of sound.
AM radio reception
AM signals, because of their low frequency,
can bend around objects and skip along the
ground. In addition, the signals can bounce
off the ionosphere and be 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 turbu-
lence even in areas where no obstacles exist.Static: Caused by thunderstorms, electrical
power lines, electric signs and even traffic
lights.
HD RadioTMTechnology reception
(for U.S.)
HD RadioTMTechnology reception needs to
be activated to receive HD Radio broad-
casts.
“Audio settings” (page 4-32)
This enables you to receive radio broadcasts
digitally (where available), providing a better
quality sound with clear reception. When
this feature is not activated or HD Radio
broadcasts are not available, you will receive
analog radio (AM/FM) broadcasts.
Satellite radio reception
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 the satellite radio ON and the
vehicle outside of any metal or large building
for the satellite radio to receive all of the
necessary data.
SiriusXM® services require a subscription
after trial period and are sold separately or
as a package. The satellite service is avail- able only in the 48 contiguous USA and DC.
SiriusXM® satellite service is also available
in Canada; see www.siriusxm.ca.
The satellite radio performance may be
affected if cargo carried on the roof blocks
the satellite radio signal.
If possible, do not put cargo near the
satellite antenna.
A buildup of ice on the satellite radio
antenna can affect satellite radio perfor-
mance. Remove the ice to restore satellite
radio reception.
4. Audio system
4-3