Motorola SM50 Manuel utilisateur

Operator Manual

for SM50 Mobile Radio

This operator manual contains the information needed to identify the con-

trols and visual indicators, operate, and troubleshoot the SM50 mobile

radio.

Information about the radio’s visual and audible indicators is

highlighted and illustrated with icons.

Information about radio safety, mounting, licensing, and other issues to

be considered before operating the radio are contained in the SM

Series Installation/Licensing Guide (Motorola part number [68 no.]).

The guide should be included in the shipment with your radio. If you

need a replacement of the Installation/Licensing Guide or this Operator

Manual, please contact your local Motorola dealer or distributor.

Operational Safety Information

Read this information before using your mobile radio. For the safe and efﬁcient

operation of your mobile radio, observe these guidelines.

Safe Mounting of the Radio

CAUTION: The bottom surface of the radio can become hot. Avoid contact during pro-

longed use. Do not mount where the bottom surface can come in contact with skin.

Exposure to Radio Frequency Energy

Your radio consists of a transmitter and receiver. When it is ON, it receives, and also

sends out, radio frequency (RF) energy. The radio operates in the frequency range

of VHF and UHF and employs analog modulation techniques. The power level can

range from low to high power.

In 1991 the Institute of Electrical and Electronics Engineers (IEEE), and in 1992 the

American National Standards Institute (ANSI) updated the 1982 ANSI Standard for

safety levels with respect to human exposure to RF energy. Over 120 scientists,

engineers, and physicians from universities, government health agencies, and

industry, after reviewing the available body of research, developed this updated

Standard. In March, 1993, the Federal Communications Commission (FCC) pro-

posed the adoption of this updated Standard. The design of your radio complies with

this updated Standard. If you want to limit RF exposure even further, you may

choose to control the duration of your transmissions.

Antenna Safety

Mobile radio antennas are not insulated and emit RF energy. Touching the antenna

while the radio is in use can cause burns. For your own safety and the safety of others:

DO NOT operate your mobile radio when a person is within 2 feet (0.6 meter) of the

antenna unless that person is shielded from the antenna by a metal surface such as

the roof of the car.

DO NOT allow the antenna to touch exposed parts of the body, especially the face or

eyes, while the radio is turned on.

DO NOT operate the radio with a damaged antenna. Replace a damaged antenna

immediately.

Unauthorized antennas, modiﬁcations, or attachments could damage the radio and

may violate FCC regulations. Use only the supplied or approved antenna.

Operational Safety Information

Driving

Check the laws and regulations on the use of communication devices in the areas

where you drive. Always obey them. Also, when using your radio while driving, please:

• give full attention to driving

• use hands-free operation, if available

• pull off the road and park before making or answering a call if driving con-

ditions so require.

Blasting Areas

To avoid interfering with blasting operations, turn your radio OFF when in a “blasting

area” or in areas posted: “turn off two-way radio.” Construction crews often use

remote-control RF devices to set off explosives.

Potentially Explosive Atmospheres

Turn your radio OFF before entering any area with a potentially explosive atmo-

sphere. It is rare, but your radio or its accessories could generate sparks. Sparks in

such areas could cause an explosion or ﬁre resulting in bodily injury or even death.

Areas with a potentially explosive atmosphere are often, but not always, clearly

marked. They include: fueling areas such as gas stations, below deck on boats, fuel

or chemical transfer or storage facilities, and areas where the air contains chemicals

or particles, such as grain, dust, or metal powders.

Do not transport or store ﬂammable gas, liquid, or explosives in the compartment of

your vehicle which contains your radio or accessories.

For Vehicles Powered by Liquid Petroleum (LP) Gas

Vehicles powered by LP gas (such as propane or butane) must comply with the

National Fire Protection Standard (NFPA-58). For a copy of this standard, contact

the National Fire Protection Association, One Batterymarch Park, Quincy, MA

02269, Attn: Publications Sales Division.

Children

Do not allow children to play with your radio. It is not a toy. Children could damage

the radio or injure themselves.

Controls and Visual Indicators

Controls

A. On/Off/Volume Knob

B. Monitor Button

C. Channel Buttons

D. Option Button

E. Push-To-Talk (PTT) Button

Visual Indicators

1. Light-Emitting Diode (LED)

2. Channel Display Icons (active channel)

•green: no channel activity

•blinking red: receiving activity

•red: transmitting

3. Monitor Icon

4. Option Icon

ABC

Operating Instructions

Turn the Radio On/Off

Turn the on/off/volume knob until it clicks.

Set the Volume

The SM50 has a dedicated Monitor/Volume Set

button: .

Press and hold for 2 seconds.

You hear all channel activity (including “static”).

Using the on/off/volume knob, adjust the vol-

ume to a comfortable listening level.

Press to exit volume set.

Select the Channel

Press or to select the desired channel.

f the radio is operating properly when turned

, a short, high-pitched tone sounds.

If the radio is not operating properly when

turned on,

a continuous low-pitched warning

tone sounds.

11 2

A short, high-pitched tone (“good key press”)

sounds each time you press or .

The active channel is displayed as follows:

12•green: no channel activity

•blinking red: receiving activity

1..2..

Operating Instructions (cont’d)

Receive

Release the PTT (if pressed).

Press or to select the desired channel.

Listen for voice activity.

21 2

The channel indicator blinks red.

Monitor NOTE:

In the United States, FCC regulations require you to

monitor the channel before you transmit. Although all

countries do not have a similar requirement, monitoring

the channel is proper radio etiquette to provide an

orderly approach to using shared frequencies.

Take the microphone off hook

press .

Listen for voice activity.

Put the microphone on hook

press .

1shows on the display when monitor is on.

Busy Channel Lockout–

Several groups of radio users

may share a channel. Busy channel lockout ﬁlters out

unwanted communications from other groups.

Operating Instructions (cont’d)

Transmit NOTE:

In the United States, FCC regulations require you to

monitor the channel before you transmit.

Press the PTT.

Hold the microphone 2-3 inches (5-8 cm) away

from your mouth while speaking clearly into it.

1The active channel number glows red and the LED on

12the microphone glows red while you are transmitting.

Time-Out Timer

(T.O.T.) limits the amount of time you have to transmit.

Busy Channel Lockout–

Several groups of radio users may share a

channel. Busy channel lockout monitors channel activity for you (even

activity you cannot hear), preventing you from transmitting while other

groups are using a channel.

When you reach the time limit, a continuous, low-pitched tone

sounds (until you release the PTT) and your transmission is cut off.

If the channel is busy when you try to transmit, a series of low-pitched

tones sounds until you release the PTT.

Operating Instructions (cont’d)

Programmable Options

Your dealer can program toperformone of

the following options (defaults in

italics

•

Repeater

/Talkaround–gives you the option of

using a repeater system for extended range or

talking to other radio users in direct range of your

radio without using the repeater.

•Local/

Distance

–gives you the option of protection

from interference (but you may not hear weak

transmissions), or hearing all transmissions

regardless of their strength and clarity.

When you turn the radio on, it is always in the

default

mode. If you do not know which of the

above options is programmed into your radio, con-

tact your dealer or system administrator.

To activate the non-default mode (Talkaround or

Local) or to return to the

default

mode (

Repeater

Distance

Press and release .

1shows when Talkaround or Local is selected.

A high-pitched tone sounds when the radio returns to

the default mode. A high-pitched tone sounds when

the radio enters the non-default mode.

Notes

______________________________

_____________________________

Troubleshooting

Symptom Problem Solution

Radio is “dead.” No power to radio. Check vehicle battery and all cable

connections. If all are o.k., contact

your local dealer for service.

Low-pitched continuous tone

when turning the radio on. Internal defect. Press the PTT to stop tone. Contact

your local dealer for service.

Low-pitched short tone when

turning the radio on. Internal defect. Radio may not function properly. Con-

tact your local dealer for service.

Low-pitched continuous tone

while transmitting. Time-Out-Timer

expired. Retransmit last part of message.

Limit transmission time.

Low-pitched continuous tone

while pressing the PTT. Transmission prohib-

ited (i.e. on receive-

only channel).

Contact your system administrator to

identify channels, or change to a

channel with a programmed transmit

frequency.

Low-pitched repetitive short

tones while pressing the PTT. Channel busy. Wait for channel to clear. Try transmit-

ting again later.

Radio will not talk to other radios

in system. Radios may be pro-

grammed for different

frequencies or groups.

Contact your local dealer to verify fre-

quencies and groups.

Constant static. Interference from elec-

tronic devices (com-

puters, etc.).

Ask your local dealer to enable coded

squelch, which screens out this type

of interference.

Limited talk range. Antennamay beplaced

in or near a steel or

concrete structure,

heavy foliage, etc.

Check antenna position. Relocate

antenna to a higher position away

from interfering materials or struc-

tures.

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