FUJIAN NEW CENTURY COMMUNICATIONS DM-880 DMR Portable Radio User Manual

QUANZHOU CITY NEW CENTURY COMMUNICATION ELECTRONICS CO.,LTD. DMR Portable Radio

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DM-880

USER MANUAL

PROFESSIONAL DIGITAL TWO-WAY RADIO

FCC ID:VO6DM-880

Frequency:400-480MHz

Icon Information

The following icons are available through this manual:

Alert Icons

Caution: indicates situations that could cause

damage to your radio.

Note: indicates tips that can help you make

better use of your radio.

Function Icons

: indicates functions that are available on digital

channel only.

: indicates functions that are available on analog

channel only.

Functions marked with no function icons are available on

both analog and digital channels.

Term Explanation

Key Operation

Short press: to press the key and release it quickly;

Long press: to press the key and remain holding it down

for a predened period (2 seconds by default);

Hold down: to press the key and remain holding it down.

Private Call

Private call is initiated by a single user to another user,

involving the calling party and the called party only.

Group Call

Group call is initiated by a single user to a group, involving

the calling party and all the group members.

All Call

All call is a call initiated to all the users on a channel. It is

used to deliver important notices.

Squelch

This technology can remove excessive background

noises, improving your communication quality.

RF Energy Exposure Compliance

Your radio is designed and tested to comply with a

number of national and international standards and

guidelines (listed below) regarding human exposure

to radio frequency electromagnetic energy. This radio

complies with the IEEE and ICNIRP exposure limits for

occupational/controlled RF exposure environment at

operating duty factors of up to 50% transmitting and is

authorized by the FCC for occupational use only. In terms

of measuring RF energy for compliance with the FCC

exposure guidelines, your radio radiates measurable RF

energy only while it is transmitting (during talking), not

when it is receiving (listening) or in standby mode.

Your radio complies with the following of RF energy

exposure standards and guidelines

United States Federal Communications Commission,

Code of Federal Regulations; 47CFR part 2 sub-part J

American National Standards Institute (ANSI)/Institute

of Electrical and Electronic Engineers (IEEE) C95.

1-1992

Institute of Electrical and Electronic Engineers (IEEE)

C95. 1-1999 Edition

International Commission on Non-Ionizing Radiation

Protection (ICNIRP) 1998

ҏҏOperational Instructions and Training Guidelines

To ensure optimal performance and compliance with the

occupational/controlled environment RF energy exposure

limits in the above standards and guidelines, users should

transmit no more than 50% of the time and always adhere

to the following procedures:

Transmit and Receive

To transmit (talk), push the Push-To-Talk (PTT) key; to

receive, release the PTT key.

Checking Items in the Package ----------------------- 2

Radio Overview ------------------------------------------- 3

Radio Controls --------------------------------------------- 3

Programmable Keys-------------------------------------- 4

Before Use-------------------------------------------------- 5

Charging the Battery ------------------------------------- 5

Assembly and Disassembly ---------------------------- 5

Status Indicators ------------------------------------------ 7

LCD Icons --------------------------------------------------- 7

LED Indicator----------------------------------------------- 8

Basic Operations------------------------------------------ 9

Turning the Radio On/Off-------------------------------- 9

Adjusting the Volume------------------------------------- 9

Selecting a Zone ------------------------------------------ 9

Selecting a Channel -------------------------------------- 9

Digital/Analog Switch------------------------------------- 9

Locking/Unlocking the Keypad------------------------- 9

Call ---------------------------------------------------------- 10

Transmitting a Private Call -------------------------- 10

Transmitting a Group Call --------------------------- 11

Transmitting an All Call ------------------------------- 11

Receiving and Responding to a Call ------------- 11

Calls on Analog Channels --------------------------- 11

Menu Navigation ------------------------------------------ 12

Contact --------------------------------------------------- 12

Message ------------------------------------------------- 12

Contents

Call Logs ------------------------------------------------- 13

Scan ---------------------------------------------------------- 14

Zone ---------------------------------------------------------- 14

Settings ------------------------------------------------------ 15

Functions and Operations ------------------------------ 17

Home Screen----------------------------------------------- 17

Scan ---------------------------------------------------------- 17

Talk Around ------------------------------------------------- 17

Monitor --------------------------------------------------- 18

Squelch Off --------------------------------------------- 18

Emergency-------------------------------------------------- 18

Busy Channel Lockout ----------------------------------- 21

Time-out Timer (TOT) ------------------------------------ 21

Troubleshooting ------------------------------------------- 22

Care and Cleaning --------------------------------------- 23

Optional Accessories ------------------------------------ 24

Appendix: Input Method--------------------------------- 25

Checking Items in the Package

Safety Information Booklet

Owner’s

Quick Reference Guide

Note: The antenna may vary with different frequency bands. And the frequency band is marked on the label of antenna;

if not, please refer to the label on the radio unit for frequency band information.

Please unpack carefully and check that all items listed below are received. If any item is missing or damaged, please contact

your dealer.

Radio Unit Battery Charger Antenna

Belt Clip Power Adapter Strap Owner’s Manual/Safety Information

Booklet Quick Reference Guide

Radio Controls

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1 SK1 (Side Key 1) 6 11 LED Indicator 16

Microphone

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3 SK2 (Side Key 2) 8 OK/Menu Key 13 Volume Control Knob 18 Battery Latch

4 TK (Top Key) 9 Speaker 14 Accessory Jack 19 Belt Clip

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Radio Overview

Up Key

Programmable Keys

For enhanced convenience, you may request your dealer to program the keys SK1, SK2, TK3, and as shortcuts to the

functions listed below:

No. Shortcut Keys Description

1Zone Up Quick access to a desired zone

2Zone Down

3Keypad Lock To lock or unlock the keypad quickly

4Contact List Quick access to Contact List

5Message Quick access to the menu “Message”

6Call Logs Quick access to the menu “Call Logs”

7Adjust Power Level To adjust power level through one button press.

8Talk Around To directly communicate with other radios.

9Monitor To adjust the condition for incoming signal match.

10 Monitor Momentary

11 Squelch Off To always unmute speaker no matter whether carrier is present or not.

12 Squelch Off Momentary

13 Home Screen To quickly return to the previous menu or home screen.

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15 Nuisance Temporary Delete To temporarily ignore unwanted channel activity.

16 Emergency To summon help in emergent situations.

17 Adjust Squelch Level To temporarily adjust the squelch threshold required for the radio to unmute.

Note: (1) Long and short press of a key can be assigned with different functions by your dealer.

(2) The TK is programmed as the Emergencykey by default, and is programmable by your dealer.

Radio Overview

Charging the Battery

Use only the charger and battery specified by HYT.

Charger LED can indicate the charging progress.

Charge Diagram

Procedures

1. Connect the power adapter to AC source. See arrow ķ.

2. Plug the power adapter into the rear socket of the

charger. See arrow ĸ.

3. Place the radio with the battery attached, or the battery

alone, into the charger.

4. The charging process initiates when LED glows red,

and is completed when LED glows green.

Before Use

Note: To achieve optimal battery performance,

please charge the battery for 5 hours before

initial use.

Charge Indicator

LED Indicator Charge Status

LED ashes red slowly. Standby (no load)

LED glows red. Charging

LED glows orange. 90% charged

LED glows green. Fully Charged

LED ashes red rapidly. Failure

Assembly and Disassembly

Attaching the Antenna

Turn the antenna clockwise to fasten it.

To remove the antenna, rotate it counter-clockwise.

Caution: Be sure to read the Safety Information

Booklet, to get necessary safety information.

Attaching the Battery

1. Insert the battery into top of the radio. See arrow ķ.

2. Slightly press the bottom of the battery until a click is

heard. See arrow ĸ.

To remove the battery, turn off the radio rst. Then slide

the battery latch upwards to unlock the battery.

Attaching the Belt Clip

1. Remove the screws;

2. Align the screw holes on the belt clip with those on the

radio’s body, and then tighten the screws.

To remove the belt clip, loosen the screws.

Attaching AudioAccessoy/Programming Cable

1. Open the accessory jack cover as the arrow shown.

2. Align the plug with the accessory jack.

3. Tighten the screw on the plug.

To remove accessories, loosen the screw.

Caution: When you are using an external

accessory, waterproof performance of the radio

may get affected.

Before Use

LCD Icons

Status Icons

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No signal;

More bars indicate better signal strength;

Message Icons

New Message/Unread Message;

InBox is full;

Scan Icons

Scanning is in progress;

Scanning pauses on a non-priority channel;

Scanning pauses on Priority Channel 1;

Scanning pauses on Priority Channel 2;

Tx Power Icons Low Tx power for the current channel;

High Tx power for the current channel;

Battery Strength Icons More bars indicate more battery power;

Monitor Icon The feature “Monitor” is active;

nocIrekaepS The speaker is unmuted;

Emergency Icon The Emergency mode (other than secret emergency) is active

or an emergency message is received

Accessory Icon An accessory is connected;

Status Indicators

Operation Mode Icons

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Operation Mode Icons

DM Direct Mode Operation: Under this mode, radios communicate with

each other directly.

RM Repeater Mode Operation: Under this mode, radios communicate

with each other via a repeater.

LED Indicator

The top LED indicator will help you easily identify current radio status.

LED Indicator Radio Status

LED ashes green. Powering on

LED glows red. Transmitting

LED glows green. Receiving

LED ashes orange. Scanning

Status Indicators

Turning the Radio On/Off

Rotate the Radio On-Off/Volume Control knob clockwise/

counter-clockwise until a click is heard to turn the radio

on/off.

Adjusting the Volume

After turning the radio on, rotate the Radio On-Off/

Volume Control knob clockwise to increase the volume,

or counter-clockwise to decrease the volume.

Selecting a Zone

A zone is a group of channels exhibiting the same

property, and is programmed by your dealer. The radio

supports up to 32 zones, each with a maximum of 16

channels. You may select a zone through any of the

following methods:

1. Through menu selection

Go to the menu “Zone”, and use the Up/Down keys to

select your desired zone.

2. Through the function keys

You may quickly toggle to your desired zone by

pressing the programmed Zone Up or Zone Down

key.

Basic Operations

Selecting a Channel

Rotate the Channel Selector knob to select a desired

channel.

Digital/Analog Switch

Each channel can be programmed as either analog

channel or digital channel. If the current zone includes

both analog and digital channels, you may quickly switch

between digital and analog through the Channel Selector

knob.

Locking/Unlocking the Keypad

When the keypad is not in use, you can lock the keypad to

prevent accidental keypad operation. Three methods are

available for you to lock or unlock the keypad:

1. Through key combination

Use “OK+” to lock or unlock the keypad.

2. Through the function key

Press the programmed Keypad Lock key to lock or

unlock the keypad.

Note: When Keypad Auto Lock is enabled,

the keypad will be locked automatically if no

operation is made for the preset time period.

Transmitting a Private Call

You may transmit a Private Call through any of the

following methods. When transmitting a Private Call, the

icon will appear.

Transmitting a call to the preset contact

In standby mode, pressing PTT key will transmit an

individual call to the contact (a Private Call number) preset

for the current channel.

Transmitting a call through Contact List or Call Logs

1) Go to Contact -> Contact List, or go to Call Logs ->

Call List.

2) Use the Up/Down key to select the Private Call

number you want to call.

3) Hold down PTT key to transmit a Private Call to the

selected contact.

Transmitting a call through Manual Dial

1) Go to Contact -> Manual Dial.

2) Input a Private Call number you want to call.

3) Press PTT key to transmit a call.

3. Through menu selection

Go to Settings -> Radio Setting -> Keypad Lock, and

then select Enable or Disable.

Enable: The keypad will be locked automatically if no

operation is made for the preset time period.

Disable: The keypad will not be locked automatically.

However, you can lock or unlock the keypad via the

key combination or Keypad Lock key mentioned

above.

Call

Note: Your dealer may preset a contact for each

digital channel. The preset contact could be a

Private Call number, a Group Call number or an

All Call number.

Basic Operations

Receiving and Responding to a Call

Receiving a Call

When a call is received, your radio will display the

corresponding icon as follows:for a Private Call, 

for a Group Call and for an All Call.

Responding to a Private/Group Call

After a Private Call or Group Call is received, you may

press the PTT key within the preset time period to call

back.

If you do not respond to a received Private Call, the radio

will display the missed call icon .

Calls on Analog Channels

To transmit on an analog channel, hold down the PTT and

speak into the microphone. To receive, release the PTT.

Transmitting a Group Call

You may transmit a Group Call through any of the

following methods. When transmitting a Group Call, the

icon will appear.

Transmitting a call to the preset contact

In standby mode, pressing PTT will transmit a Group Call

to the contact (a Group Call number) preset for the current

channel.

Transmitting a call through Contact List

1) Go to Contact -> Contact List.

2) Use the Up/Down key to select the Group Call

number you want to call.

3) Hold down PTT to transmit a Group Call to the

selected contact.

Transmitting an All Call

Methods are the same as those in Transmitting a Group

Call. When transmitting an All Call, the iconwill

appear.

Note: You can transmit an All Call only when it is

enabled by your dealer.

Note: You cannot respond to an All Call.

Note: To ensure an optimal volume for the

receiving radio, hold the radio approximately 2.5

to 5 centimeters away from your mouth during

transmission.

Call

Contact

To access this item, press Menu key in idle mode and

then select “Contact”.

Contact List

You can save up to 200 entries in the list. To access this

item, select “Contact -> Contact List” or press the shortcut

key for Contact List.

Menu Navigation

Main Menu

Contact

Message

Call Logs

Scan

Zone

Settings

Editing a Contact

You can edit the number and alias of each Private Call

contact.

Viewing a Contact

You can view details of each contact.

Deleting a Contact

You can delete a Private Call contact. However, please

note that you can not delete the contact when there is only

one entry left in the list. In addition, the private contact

preset on the digital channel cannot be deleted.

New Contact

You can add a Private Call contact to the contact list. The

number and alias of each contact must be unique, and the

available number range is 1-16776415.

Manual Dial

You can manually input the private call number for calling.

Message

To access this item, press the Menu key in idle mode

and then select “Message”, or press the shortcut key for

Message directly.

New Msg

You can create your desired text message (256 characters

at most) and send it to an individual user or to a talk

group.

Quick Text

Under this option there are some text messages (10

entries at most) preset by your dealer. You can choose to

edit and send any entry.

InBox

The InBox can save up to 20 received messages. When

the InBox is full, the icon will appear, and the oldest

entry will be overwritten by the latest one automatically.

For each message, you can choose to perform any of

these operations: Reply, Forward, View Details and

Delete.

To delete all messages in the InBox, select “Message ->

InBox -> Delete All”.

OutBox

The OutBox can save up to 20 sent messages. When the

OutBox is full, the oldest entry will be overwritten by the

latest one automatically.

For each message, you can choose to perform any of

these operations: Reply, Forward, View Details and

Delete.

To delete all messages in the OutBox, select “Message ->

OutBox -> Delete All”.

Call Logs

To access this item, press the Menu key in idle mode and

then select “Call Logs”, or press the shortcut key for Call

Logs directly.

This radio can save up to 10 entries in the Outgoing List,

Incoming List and Missed List respectively. When the

memory for call logs is full, the oldest entry will be over-

written by latest one automatically.

After accessing a list and selecting an entry, you can

perform any of these operations: hold down the PTT key

Menu Navigation

to initiate a call; add it to Contact List; or delete it.

To delete all entries in Outgoing List, Incoming List or

Missed List at a time, select “Call Logs -> Outgoing /

Incoming /Missed -> Delete All”.

Scan

To access this item, press the Menu key in idle mode and

then select “Scan”.

Scan On/Off

The function “Scan” allows you to listen to communication

activities on other channels so that you can keep a close

track of your team members. This option is used to enable

or disable the function.

Scan List

You can request your dealer to create a scan list for each

channel. Each list may contain 32 channels at most (either

digital channel or analog channel is OK). After accessing

the list, you can perform any of the following operations:

Adding a Channel

To include a new channel into the active scan list.

Editing Priority Channel

To set the selected channel as a non-priority or as a

priority channel. If you are interested in activities on a

channel, you can set it as a priority channel, which will be

scanned more frequently than a non-priority channel.

Each scan list may contain two priority channels at most.

indicates priority channel 1, and indicates priority

channel 2.

Deleting a Channel

To remove a channel from the active scan list. However,

the rst channel in the list can not be deleted.

Zone

To access this item, press the Menu key in idle mode and

then select “Zone”.

This radio supports up to 32 zones. You can use this menu

to select your desired zone.

Menu Navigation

Settings

To access this item, press the Menu key in idle mode and

then select “Settings”.

You can optimize your radio performance by customizing

related parameters according to actual needs and your

preferences.

Radio Set

Power Level

This option allows you to set transmit power level.

Alternatively, you can change the power level by pressing

the shortcut key for Adjust Power Level in idle mode.

There are two levels available: High (indicated by )

and Low (indicated by ). High power level enables you

to communication with farther team members.

Note: Power level should be set for each channel

individually.

Squelch Level

This option allows you to select an appropriate squelch

level. Alternatively, you can change the squelch level by

pressing the shortcut key for Adjust Squelch Level in idle

mode. There are three levels available: Tight, Normal and

Open.

The default squelch level is “Normal”, and generally used

in low noise environment.

Generally, “Tight” is used in high noise environment.

It requires stronger signal for the radio to unmute. If

the squelch level is set to Open, the speaker will keep

unmuted irrespective of the satisfaction of decoding

conditions.

Language

To set the language in which all interface information is

displayed. At the moment, this radio only supports two

languages: Simplied Chinese and English.

Backlight

To set the backlight parameters. There are three options

available: On, Off and Timer. The timer is programmed by

your dealer. Available range: 5-60 seconds.

Brightness

To set the display brightness. You can increase or lower it

using the Up or Down key.

Menu Navigation

Keypad Lock

To set whether to enable this function. When “Enable” is

selected, you can use the Up or Down key to set the time

range after which the keypad will be locked. Available

range: 5-60 seconds.

LED

To set whether to enable LED indication.

Tone

To set tones for your radio. You can set the following

tones:

Radio Silent: to set whether the radio will give tone

indication. If Silent On is selected, all alerts will be off.

Talk Permit: to set whether the radio will give tone

indication for transmission. The following options are

available: Disable (the radio does not give any tone

indication for transmission); Digital Only (the radio gives

tone indication for transmission on the digital channel

only), Analog Only (the radio gives tone indication for

transmission on the analog channel only), and Enable (the

radio gives tone indication for transmission on both analog

and digital channels).

Private Ring: to set whether the radio will give tone

indication when the radio receives a private call.

TextMsg Ring: to set whether the radio will give tone

indication when the radio receives a message.

Keypad: to set whether the radio will give tone indication

when you are making keypad operations.

Device Info

With this option, you can view the basic information of

your radio, including serial number, radio model, frequency

range, rmware version and etc.

Menu Navigation

Home Screen

The feature allows you to quickly return to the previous

menu or the home screen.

Operation:

In the editing screen, press the programmed Home Screen

key, and the radio exits the screen and returns to the

previous menu immediately; in other screens, press the

key, and the radio returns to the home screen immediately.

Scan

The feature “Scan” allows you to listen to communication

activities on other channels so that you can keep a close

track of your team members.

Operation:

1. To enable the feature, you can select “On” from the

menu “Scan”; or

Press the programmed Scan key in standby mode; or

Switch to a channel for which the feature “Auto Scan”

is enabled via the programming software.

2. After the feature is enabled, your radio will scan

according to the scan list set for the channel on which

scanning starts. The scanning process is as follows:

During scanning, LCD displays icon , and LED

ashes orange.

Functions and Operations

When activities are detected on a channel, the radio

will stay on the channel to receive current activities.

If your radio stays on a non-priority channel, LCD will

display icon; if on Priority Channel 1 or Priority

Channel 2, LCD will display iconor icon 

respectively.

If you don’t want to hear activities on the channel,

press the programmed Nuisance Temporary

Delete key to remove the channel from the scan list

temporarily.

If you want to continue staying on the channel, press

the programmed Monitor or Squelch Off key during

scan stay.

To exit the scanning process, you can select “Off” from the

menu “Scan”, or press the programmed Scan key again.

Talk Around

You can continue to communicate in DM mode by pressing

the programmed Talk Around key, when your repeater

malfunctions, or when your terminal is out of the repeater’

s range but within talking range of other terminals.

Operation:

Press the programmed Talk Around key to switch

between DM mode and RM mode.

Monitor

To adjust match conditions for signal receiving, you can

enable the feature “Monitor”.

Operation:

Press the programmed Monitor key to enable the

feature, and the radio displays icon. To disable the

feature, press this key again.

Hold down the programmed Monitor Momentary key

to enable the feature, and the radio displays icon.

To disable the feature, release this key.

Squelch Off

If the feature “Squelch Off” is enabled, your radio’s

speaker will keep unmuted no matter whether carrier is

present.

Operation:

Press the programmed Squelch Off key to enable the

feature. Then the radio displays iconand sounds

background noise. To disable the feature, press this

key again.

Press the programmed Squelch Off Momentary key

to enable the feature. Then the radio displays icon

and sounds background noise. To disable the feature,

release this key.

Emergency

In case of an emergency, you can use the feature to

ask for help from your companion or control center. The

Emergency process has the highest priority. You can make

emergency operation even when your radio is transmitting

or receiving.

To enable the feature on a channel, an emergency system

must be assigned to the channel via the programming

software. In addition, the Emergency type and Emergency

mode are settable via the programming software.

Emergency Type

For each Emergency mode, there are four Emergency

types available. You can select one of them via your

dealer:

Functions and Operations

Emergency Type Description

Siren Only In Emergency mode, the radio will sound shrill alarm tone and display the icon .

Regular In Emergency mode, the radio will give audible and visible indication.

Silent In Emergency mode, the radio won't give any audible or visible indication.

Silent with Voice In Emergency mode, the radio won’t give any audible or visible indication, but will receive voice ACK

from the companion or control center automatically.

Emergency Mode

Your radio supports three Emergency modes. You can select one of them via your dealer (Note: For the following operation

methods, we take the “Regular” type as an example).

Emergency Mode Description

Emergency AlarmIn this mode, you can send alarm information to your companion or control center by pressing

the programmed Emergency key, but you cannot talk with them.

Emergency Alarm with

Call

In this mode, you can send alarm information by pressing the programmed Emergency

key. When iconappears, you can speak into the microphone, allowing your voice and

background noise to be transmitted automatically (you do not need to hold down the PTT key).

Emergency Alarm with

Voice to Follow

In this mode, press the Emergency key to go to the Emergency Revert Channel. When icon 

appears, you can speak into the microphone, allowing your voice and background noise to

be transmitted automatically (you do not need to hold down the PTT key).

Functions and Operations

3. When iconappears, your radio is receiving. When

a call is received, iconappears.

Two methods are available for you to exit the

Emergency mode:

1. After the preset Alarm Cycles and Voice Cycles expire,

the radio will exit the Emergency mode automatically.

2. Long press the programmed Emergency key.

Operation Methods for Digital Emergency

Emergency Alarm with Voice to Follow

Operation:

1. Press the programmed Emergency key to go to the

Emergency Revert Channel, and the radio displays the

icon.

2. When the icon appears, you can speak into the

microphone to make an emergency call.

3. When the icon appears, your radio is receiving.

When a call is received, icon appears.

If the preset Voice Cycles expire, you can press the

PTT key to make the emergency call again (the radio

Operation Methods for Analog Emergency

Emergency Alarm

Operation: Press the programmed Emergency

key to send alarm information. The radio displays icon

and text information “Sending Alarm!”, with LED

glowing red. If “Local Emergency Alarm” is enabled via the

programming software, an alarm tone will sound.

Two methods are available for you to exit the Emergency

mode:

1. Once the Alarm Cycles expire, the radio will exit the

Emergency mode automatically.

2. Long press the programmed Emergency key.

Emergency Alarm with Call

Operation:

1. Press the programmed Emergency key to send

alarm information. The radio displays icon  and

text information “Sending Alarm!”, with LED glowing

red. If “Local Emergency Alarm” is enabled via the

programming software, an alarm tone will sound.

2. When icon appears, you can speak into the

microphone to make an emergency call.

Note: Your dealer may set the number of alarm

cycles, alarm duration, number of voice cycles,

duration of each transmission and Tx interval.

Functions and Operations

displays the icon , with LED glowing red). After the

emergency call is transmitted, please release the PTT key

to receive (the radio displays icon). When a call is

received, icon appears.

To exit the Emergency mode, long press the programmed

Emergency key.

Busy Channel Lockout

If enabled via the programming software, this feature

can prevent your radio interfering with other transmitting

terminals on the same channel. If you hold down the

PTT key while the channel is in use, your radio will keep

beeping and display text information “Channel Busy”,

alerting you to transmission prohibition. To stop beeping,

please release the PTT key. When the channel is free, you

can press and hold down the PTT key to transmit.

Time-out Timer (TOT)

The purpose of TOT is to prevent any user from occupying

a channel for an extended period. If the preset time

expires, the radio will automatically terminate transmission

Note: Your dealer may set the number of voice

cycles, duration of each transmission and Tx

interval.

and keep beeping. To stop beeping, please release the

PTT key. You must wait for a certain time period (preset by

your dealer) before you can press and hold down the PTT

key to transmit again.

If the pre-alert function is set by your dealer, your radio will

alert you to the TOT expiration in advance.

Note: This feature is null in Emergency mode.

Functions and Operations

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The equipment can

not be powered on.

The battery may be improperly installed. Remove the battery and attach it again.

The battery may run out. Recharge or replace the battery.

The battery may suffer from poor contact

caused by dirtied or damaged battery

contacts.

Clean the battery contacts. If the problem can not

be solved, contact your dealer or authorized service

center for inspection and repair.

During receiving

signals, the voice

is weak,

discontinuous or

totally inactive.

The battery strength may be too low. Recharge or replace the battery.

The volume may be set to a low level. Increase the volume.

The antenna may get loose or may be

improperly installed. Power off the radio, and re-install the antenna.

The speaker may be blocked or damaged.

Clean surface of the speaker. If the problem can not

be solved, contact your dealer or authorized service

center for inspection and repair.

You can not

communicate with

other members.

The frequency or signaling may be

inconsistent with that of other members.

Set your TX/RX frequency and signaling to the same

as that of other members.

The channel type (digital/analog) may be

set inconsistently.

Make sure all members are on the same digital/

analog channel.

You may be too far away from the group

members. Move towards other members.

Irrelevant

communications or

noises are heard

on the channel.

You may be interrupted by radios using the

same frequency. Change the frequency, or adjust the squelch level.

The radio may not be set with any signaling. Set signaling for all member radios to avoid

interference at the same frequency.

Troubleshooting

The noise is too

loud.

You may be too far away from other

members. Move towards other members.

You may be at an unfavorable position.

For example, your communication may be

blocked by high buildings or frustrated in the

underground areas.

Move to an open and at area, and restart the radio.

You may suffer from external disturbance

(such as electromagnetic interference).

Stay away from equipment that may cause

interference.

If the above solutions can not x your problems, or you may have some other troubles, please contact us or your local dealer

for more technical support.

Care and Cleaning

To guarantee optimal performance as well as a long service life of your radio, please follow the tips below.

Troubleshooting & Care and Cleaning

Radio Care

Do not pierce or scrape the radio with any edged instruments or hard objects.

Keep the radio far away from substances that can corrode the electronic circuit.

Do not hold the radio by its antenna or headset cable directly.

Attach the accessory jack cover when the radio is not in use.

Radio Cleaning

Clean up the dust and ne particles on the radio surface and charging piece with a clean and dry lint-free cloth or a brush

regularly.

Use neutral cleanser and a non-woven fabric to clean the keys, control knobs and front case after long-time use. Do not use

chemical preparations such as stain removers, alcohol, sprays or oil preparations, so as to avoid surface case damage.

Make sure the radio is completely dry before use.

Caution: Power off the radio and remove the battery before cleaning.

SAFETYTRAININGINFORMATION



Your

  

radiogeneratorsRFelectromagneticenergyduring

transmitmode.Thisradioisdesignedforandclassifiedas“OccupationalUseOnly”,meaningitmustbeusedonlyduringthe

courseofemploymentbyindividualsawareofthehazards,andthewaysToMinimizeSuchhazards.ThisradioisNOTintended

forusebythe“GeneralPopulation”inanuncontrolledenvironment.ThisradiohasbeentestedandcomplieswiththeFCCRF

exposure limits for“Occupational Use Only”.Inaddition, your  



radiocomplieswiththefollowingStandardsandGuidelineswithregardtoRFenergyandelectromagneticenergy

levelsandevaluationofsuchlevelsforexposuretohumans:

�

to Radio Frequency Electromagnetic Fields.

�American National Standards Institute (C95.1-1992), IEEE Standard for Safety Levels with Respect to Human

Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz.

�American National Standards Institute (C95.3-1992), IEEE Recommended Practice for the Measurement of

Potentially Hazardous Electromagnetic Fields– RF and Microwave.

�The following accessories are authorized for use with this product. Use of accessories other than those (listed in the

instruction) specified may result in RF exposure levels exceed the FCC requirements for wireless RF exposure.

Toensureyou’reyourexposetoRFelectromagneticenergyiswithintheFCCallowablelimitsforoccupationaluse,always

adheretothefollowingguidelines

TheinformationlistedaboveprovidestheuserwiththeinformationneededtomakehimorherawareofRFexposure,

andwhattodotoas‐surethatthisradiooperateswiththeFCCRFexposurelimitsofthisradio.

ElectromagneticInterference/Compatibility

Duringtransmissions,   radiogeneratesRFenergy

thatcanpossiblycauseinterferencewithotherdevicesorsystems.Toavoidsuchinterference,turnofftheradioinareas

wheresignsarepostedtodoso.DONOToperatethetransmitterinareasthataresensitivetoelectromagneticradiation

suchashospitals,aircraft,andblastingsites.



Occupational/ControlledUse

Theradiotransmitterisusedinsituationsinwhichpersonsareexposedasconsequenceoftheiremploymentprovided

thosepersonsarefullyawareofthepotentialforexposureandcanexercisecontrolovertheirexposure.



FCC OET Bulletin 65 Edition 97-01 Supplement C, Evaluating Compliance with FCC Guidelines for Human Exposure

Attention:

This radio complieswith IEEE and ICNIRP exposure limits for occupational/controlled RF exposure

emvironment at operating duty factors of up to 50% and is authorized by the FCC for occupational

use only. An appropriate warning lable is affixed to all units.

In order to comply with RF exposure requirements, a minimum distance of 2.5cm must be maintained

when held-to-face, and body-worn operations are restricted to the approved original acessories (belt clip).

Do not use this device when antenna shows obvious damages

China New Century (Quanzhou) Communication Electronics Co., Ltd.

FUJIAN NEW CENTURY COMMUNICATIONS DM-880 DMR Portable Radio User Manual

QUANZHOU CITY NEW CENTURY COMMUNICATION ELECTRONICS CO.,LTD. DMR Portable Radio

user manual

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