Features of your vehicle
Under License From iBiquity Digital
Corporation. U.S. and Foreign Patents.
and the HD and HD Radio
logos are proprietary trademarks of
iBiquity Digital Corporation.
reception is available in the
United States, including Alaska and
What is HD Radio
The vehicle audio system (if equipped) is
able to receive standard analog FM/AM
radio broadcasting as well as digital HD
technology provides digital
and analog reception using existing FM
and AM broadcasting frequencies.
Currently, radio stations broadcasting an
signal are operating in a
hybrid mode of both, analog and digital, in
order to reach both receivers. In both
modes, analog and digital, the broadcast-
ed program contents is the same(except
of multicasting, see below).
Eventually, as analog receivers are
replaced by digital ones, radio stations
may be able to turn off their analog broad-
casting and use only digital broadcasting.
FM stations are able to broad-
cast multiple digital program streams(chan-
nels) over a single FM frequency. For
example, a HD Radio
FM station can run
a main channel of music and a sub chan-
nel of news(or even two different music
channels) at one frequency.
But only the program content of the main
channel is broadcasted in analog.
To overcome the delay that digital sys-
tems inherently produce, HD Radio
technology first uses the audio signal of
the analog broadcasting when you tune
to an AM station or to the main channel
of a FM station. After that, the system will
blend from analog to digital signal.
Normally, this blending is very smooth. If
you experience a skip in program content
of several seconds, the radio station has
not implemented HD Radio
ing correctly. This is not a problem with
your audio system.
Due to the fact that sub channels are only
broadcasting digital, blending from ana-
log to digital signal is not possible if you
tune to a sub channel. In this case play-
back of the sub channel starts after sev-
eral seconds, this is a normal function.