Mazda 3 manuals

Mazda 3 Owners Manual: 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.

Mazda 3. AM characteristics


FM characteristics

An FM broadcast range is usually about 4050 km (2530 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.

Mazda 3. FM characteristics


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

Mazda 3. FM characteristics


Atmospheric conditions can also affect FM reception. High humidity will cause poor reception. However, cloudy days may provide better reception than clear days.

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.

Mazda 3. Multipath noise


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.

Mazda 3. Flutter/Skip 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.

Mazda 3. Weak signal noise


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.

Mazda 3. Strong signal noise


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.

Mazda 3. Station drift noise


Operating Tips for Audio System
WARNING Always adjust the audio while the vehicle is stopped: Do not adjust the audio control switches while driving the vehicle. Adjusting the audio while driving the vehicle ...

Operating Tips for CD Player
Condensation phenomenon Immediately after turning on the heater when the vehicle is cold, the CD or optical components (prism and lens) in the CD player may become clouded with condensation. At t ...

Other materials:

Drive Belt Inspection [Skyactiv G 2.0]
Generator Drive Belt NOTE: The generator drive belt deflection/tension inspection is not necessary with the adoption of the drive belt auto tensioner. 1. Verify that the indicator part of the cast hexagon on the drive belt auto tensioner is within the normal range. If ...

Door Sash Film Installation
1. Remove any grease or dirt from the affixing surface of the door. 2. Cut away the unused portion along the dotted lines. 3. Peel off the backing paper and attach the door sash film onto the door as shown in the figure. Standard clearance a: 3.05.0 mm {0.120.19 in} ...

Control Switches
Temperature control dial This dial controls temperature. Turn it clockwise for hot and counterclockwise for cold. Fan control dial The fan has seven speeds. AUTO position The amount of airflow will be automatically controlled in accordance with the set temperature. Except AUTO position Th ...

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