
5–18
Interior Features
Audio System
Do not spill any liquid on the audio
system.
Do not insert any objects, other than CDs,
into the slot.
Radio Reception
AM characteristics
AM signals bend around such things as
buildings or mountains and bounce off the
ionosphere.
Therefore, they can reach longer distances
than FM signals.
Because of this, two stations may
sometimes be picked up on the same
frequency at the same time.
Station 2
Station 1 Ionosphere
FM characteristics
An FM broadcast range is usually about
40—50 km (25—30 miles) from the
source. Because of extra coding needed to
break the sound into two channels, stereo
FM has even less range than monaural
(non-stereo) FM.
FM Station
40—50km
(25—30 miles)
Signals from an FM transmitter are similar
to beams of light because they do not
bend around corners, but they do reflect.
Unlike AM signals, FM signals cannot
travel beyond the horizon. Therefore, FM
stations cannot be received at the great
distances possible with AM reception.
AM wa
ve
FM wa
ve
FM wa ve
100—200 km (60—120 miles) Ionosphere
Atmospheric conditions can also affect
FM reception. High humidity will cause
poor reception. However, cloudy days may
provide better reception than clear days.
Mazda3_8FA4-EA-15G_Edition1.indb 182015/05/11 14:01:23

5–19
Interior Features
Audio System
Multipath noise
Since FM signals can be reflected by
obstructions, it is possible to receive both
the direct signal and the reflected signal
at the same time. This causes a slight
delay in reception and may be heard as a
broken sound or a distortion. This problem
may also be encountered when in close
proximity to the transmitter.
Reflected waveDirect
Flutter/Skip noise
Signals from an FM transmitter move in
straight lines and become weak in valleys
between tall buildings, mountains, and
other obstacles. When a vehicle passes
through such an area, the reception
conditions may change suddenly, resulting
in annoying noise.
Weak signal noise
In suburban areas, broadcast signals
become weak because of distance from the
transmitter. Reception in such fringe areas
is characterized by sound breakup.
Strong signal noise
This occurs very close to a transmitter
tower. The broadcast signals are extremely
strong, so the result is noise and sound
breakup at the radio receiver.
Station drift noise
When a vehicle reaches the area of two
strong stations broadcasting at similar
frequencies, the original station may be
temporarily lost and the second station
picked up. At this time there will be some
noise from this disturbance.
Station 2
88.3 MHzStation 1
88.1 MHz
Mazda3_8FA4-EA-15G_Edition1.indb 192015/05/11 14:01:23

5–21
Interior Features
Audio System
CDs bearing the logo shown in the
illustration can be played. No other discs
can be played.
Use discs that have been legitimately
produced. If illegally-copied discs such
as pirated discs are used, the system may
not operate properly.
Be sure never to touch the signal surface
when handling the CDs. Pick up a CD
by grasping the outer edge or the edge of
the hole and the outer edge.
Do not stick paper or tape on the CD.
Avoid scratching the reverse side (the
side without a label). The disc may not
eject resulting in a malfunction.
Dust, finger smudges, and dirt can
decrease the amount of light reflected
from the signal surface, thus affecting
sound quality. If the CD should become
soiled, gently wipe it with a soft cloth
from the center of the CD to the edge.
Do not use record sprays, antistatic
agents, or household spray cleaners.
Volatile chemicals such as benzine and
thinner can also damage the surface of
the CD and must not be used. Anything
that can damage, warp, or fog plastic
should never be used to clean CDs.
The CD player ejects the CD if the CD
is inserted upside down. Also dirty and/
or defective CDs may be ejected.
Do not insert cleaning discs in the CD
player. Do not insert any disc with a peel-off
seal affixed to it. This unit may not be able to play certain
CD-R/CD-RWs made using a computer
or music CD recorder due to disc
characteristics, scratches, smudges, dirt,
etc., or due to dust or condensation on
the lens inside the unit.
Storing CDs in the vehicle exposed to
direct sunlight or high temperature may
damage the CD-R/CD-RWs, and make
them unplayable.
CD-R/CD-RW exceeding 700 MB
cannot be played. This unit may not be able to play certain
discs made using a computer due to the
application (writing software) setting
used. (For details, consult the store
where the application was purchased.)
It is possible that certain text data, such
as titles, recorded on a CD-R/CD-RW
may not be displayed when musical data
(CD-DA) is playing.
The period from when a CD-R W is
inserted to when it begins playing is
longer than a normal CD or CD-R.
Completely read the instruction manual
and cautions for CD-R/CD-RWs. Do not use discs with cellophane tape
adhering, partially peeled off labels,
or adhesive material exuding from the
edges of the CD label. Also, do not use
discs with a commercially-available
CD-R label affixed. The disc may not
eject resulting in a malfunction.
Mazda3_8FA4-EA-15G_Edition1.indb 212015/05/11 14:01:24

5–30
Interior Features
Audio System
Operating the Radio
Band selector buttonChannel preset buttons
Scan button Auto memory button
Tuning button Audio display
R a d i o O N
Press a band selector button (
) to
turn the radio on.
Band selection
Successively pressing the band selector
button (
) switches the bands as
follows: FM1:FM2 :AM.
The selected mode will be indicated.
N O T E
If the FM broadcast signal becomes weak,
reception automatically changes from
STEREO to MONO for reduced noise.
Tuning
The radio has the following tuning
methods: Manual, Seek, Scan, Preset
channel, and Auto memory tuning. The
easiest way to tune stations is to set them
on preset channels.
Manual tuning
Select the station by pressing the tuning
button (
, ) lightly. Seek tuning
Automatic search for radio stations starts
when the tuning button (
, ) is pressed
until a beep sound is heard. The search
stops when a station is found.
N O T E
If you continue to press and hold the
button, the frequency will continue
changing without stopping.
Scan tuning
Press and hold the scan button (
) to
automatically sample strong stations.
Scanning stops at each station for about 5
seconds. To hold a station, press and hold
the scan button (
) again during this
interval.
Preset channel tuning
The 6 preset channels can be used to store
6 AM and 12 FM stations.
1. To set a channel ¿ rst select AM, FM1,
or FM2. Tune to the desired station.
2. Press a channel preset button for about 2 seconds until a beep is heard.
The preset channel number or station
frequency will be displayed. The
station is now held in the memory.
. B [ E B @ ' " &