Retevis RT72 User manual

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RT72

Thank you for your favor with our products.
We are dedicated to providing high performance and
high stability radio communication products. This two-way
radio is no exception. The radio is a DMR dual-slot digital
walkie-talkie developed and produced by my team with
1024 memory channels, full-color LCD display and full
keyboard hand-tuning function. In order to make you fully
understand the various advantages of the radio perfor-
mance and use and maintenance methods, please read
this manual carefully.
PROGRAMMING NOTES
When programming the radio, start by reading the factory
software data, and then rewrite this data with your frequen-
cy etc., to a new saved code plug, otherwise errors may
occur.You can use the programming cable with a PC to
program the frequency, channel type, power etc. you
programming must comply with your FCC (or other
country) license certification.European Users should note
that operation of this unit in Transmit mode requires the
operator to have a valid Amateur Radio Licence from their
respective Countries Amateur Radio Licencing Authority
for the Frequencies and Transmitter Power levels that this
Radio transmits on. Failure to comply may be unlawful and
liable for prosecution. At this subject, refer to the "EU"
specification guide 2014/53/EU.
TO USERS

FCC Regulations
Federal Communication Commission (FCC) requires that
all radio communication products should meet the
requirements set forth in the above standards before they
can be marketed in the U.S, and the manufacturer shall
post a RF label on the product to inform users of operation-
al instructions, so as to enhance their occupational health
against exposure to RF energy.
RF Radiation Information
This product must be restricted to operations in an
occupational/controlled RF exposure environment. Users
must be fully aware of the hazards of the exposure and
able to exercise control over their RF exposure to qualify
for the higher exposure limits.
RF Radiation Profile
Radio Frequency (RF) is a frequency of electromagnetic
radiation in the range at which radio signals are transmit-
ted. RF technology is widely used in communication,
medicine, food processing and other fields. It may generate
radiation during use.
RF Radiation Safety
In order to ensure user health, experts from relevant
industries including science, engineering, medicine and
health work with international organizations to develop
SECURITY OVERVIEW standards for safe exposure to RF radiation. These
standards consist of:
● 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;
● International Commission on Non-Ionizing Radiation
Protection (ICNIRP) 1998.
Operational 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:
(1) RF energy will be generated only when the radio is
transmitting.
(2) The radio must be at least 2.5 centimeters away from
human body when transmitting.
EU Regulatory Conformance
As certified by the qualified laboratory, the product is in
compliance with the essential requirements and other
relevant provisions of the Directive 1999/5/EC.
Please note that the above information is applicable to EU
countries only.

● Broadband radios
Support UV double segment, frequency range
UHF400.000-470.000MHz / VHF136.000-174.000MHz
● DMO True2-Slot dual time slot
Direct mode dual-slot communication achieves two groups
of calls at a frequency point at the same time, so that the
communication efficiency is doubled and frequency
resources are saved
● Digital and analog compatible, smooth over
Support DMR digital and analog two communication modes
to ensure that the original analog products smooth
transition to digital products to meet different communica-
tion needs
● Digital signaling function
Rich calling modes that support DMR protocol, including
Private call, Group call and All call; supports remote inhibit
function and other applications
● Messages function
Supports SMS, text editing and draft in 250 characters in
Chinese and English, so that text messages calls can be
sent when voice call is inconvenient
● High sound quality
This digital two-way radio uses advanced AMBE +2 voice
processing technology to achieve high quality
MAIN FEATURES ● Manual writing-frequency
Supports channel / frequency mode, allows manual
writing-frequency in frequency mode, and programming
software can be used to set the required frequency without
connecting the computer
● High/low power switch
Meets the power requirements of different call distances to
save more energy
● Alarm function
Supports general alarm and silent alarm in emergency
situations
● Digital mode supports the use of relays
● Side keys can be customized without changing the
user’s operating habits
TM

ITEMS IN THE PACKAGE
RADIO OVERVIEW
PREPARATION BEFORE USE
BASIC OPERATION
EMERGENCY ALARM FUNCTION
MENU OPERATION
MAIN MENU FUNCTIONS
MENU SETTINGS
MAIN TECHNOLOGICAL SPECIFICATION
TROUBLESHOOTING
MAINTENANCE AND CLEAN
APPENDIX
01
02~07
08~12
13~22
22~31
32~34
34~59
60~89
90~91
92
93
.......
CONTENTS
01
ITEMS IN THE PACKAGE
Please unpack carefully and check if all items listed below are received.
If any item is missing or damaged, please contact your dealer.
Item
Radio
Battery Pack
Battery Charger
Power Adapter
Antenna
Belt Clip
Hand Strap
User’ s Manual
Earpiece
Quantity (PCS)
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03
1.2. Description of LCD Icons
Description of product status
The more signal bars, the stronger the signal is
The current channel transmits at high power
The current channel transmits at low power
The current sub-audio is CTCSS
The current sub-audio is CDCSS
Speaker is enabled, and reception is effective
The current transmission frequency is the reception
frequency plus a frequency bias (positive bias)
The current transmission frequency is the reception
frequency minus a frequency bias (negative bias)
Currently in offline state
The scan is on and is in normal mode
Scan stays on non-priority channel
Scan stays on priority channel 1
Scan stays on priority channel 2
The more bars, the more battery power
Voice control is turned on
Currently pointing to the main digital mode; press A/B
button to switch the main channel up and down.
When double-waiting is turned on and works in digital
sub-channel, the icon is
Currently pointing to the main analog mode; press
A/B button to switch the main channel up and down.
When double-waiting is turned on and works in
analog sub-channel, the icon is
Icon name
Signal strength icon
Transmission
power icon
Direct mode slot
icon
Speaker icon
Relay mode icon
Scan icon
Non-priority channel
Priority channel 1
Priority channel 2
Battery power icon
VOX icon
Pointer icon
H
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D
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D
A
Icon
1. Status Indication
1.1. LED Indicators
Indicator status
Product status
Red on Green on Green flash
Transmitting Receiving Scanning
P1
P2
V
This product has LED indicators so you can easily grasp
the current operating state.
RADIO OVERVIEW
PTT
SK2
SK1
MENU MENU
Mic/Spk/Write
Frequency Port
Battery Pack
Antenna
BACK
BACK
02
LED Indicator
LCD
Loudspeaker
Microphone
State indicator
lamp
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Channel mode, changing the channel forward.
Move right in SMS editing interface.
In standby mode, short press to switch between
dual-segment single-standby or dual-segment
dual-standby mode.
Clear the entered information in input state.
Press and hold this key to switch channel mode or
frequency mode.
Press and hold this key to lock on / off keyboard
Code word * in DTMF function
Switch the input method in input method interface.
0504
2. Description of Key
Switch between transmission and reception; when
transmitting, press this key and speak to the
microphone; release the key to receive.
Short press is the monitor function (only analog
channels are supported). Switch to the monitor
squelch mode when this key is pressed, and return
to the receive squelch mode when the key is
pressed again.
Long press for the power switch, select the high and
low power.
Short press this key to quickly switch between the
upper and lower screens and switch between the A
screen and the B screen.
Long press this key to enter the digital contact.
Short press this key to end the emergency alarm
mode.
Press and hold this key to activate the emergency
alarm mode to quickly establish an emergency call.
Default: 0~9
[0~9] code words in DTMF function
Select punctuation marks or letters in Pinyin input
method.
If numeric shortcut function is set, you can press
and hold this key to jump to the corresponding
contact.
Press it to activate the menu mode, enter the menu
and press this key to select menu items.
Press and hold it to enter the radio settings.
Channel mode, changing the channel backwards.
Move left in SMS editing interface.
[PTT]
Transmit key
Side key SK1
Side key SK2
Top key
*Default is
the alarm key
0-9 number
keys
[MENU] key
[ ] key
[ ]key
[Exit]/[Clear]
key
[*]key
[#]key

Switch to the monitor squelch mode when this
key is pressed, and return to the receive
squelch mode when the key is pressed again.
Quick access to battery power. The voice
broadcast has a high power, and the power is
low
Quickly turn the scan function on or off. Note:
double-segment double-waiting scan does not
work
Press this key
(Based on firmware) to quickly turn on/off the
recording(Optional)
(Based on firmware) to quickly play back the
previous recording.(Optional)
(Based on firmware) to quickly play back the
next recording(Optional) .
Fast launch 1750 pilot signal
When the scan is paused, pressing this key
temporarily deletes the temporarily unwanted
noise channel. The channel is not detected
during the next scan detection. When the host
restarts scanning, the channel will be restored
in the scan list.
Press this key to broadcast the current time.
Press this key to turn on the flashlight and
press it again to turn off the flashlight.
Quickly switch the upper and lower screen
Monitor
Battery Power
Indication
Scan
Scan Back
Record
Previous
Record
Next Record
Dispatch
(1750Hz pilot)
Nuisance
Temporary
Delete
Time
Flashlight
Up and Down
Screen
3. Programmed Key
In order to improve the operational convenience, the function shortcut
keys provided by this product are [SK1] key, [SK2]key, [TK1] key. For the
specific function, please consult the distributor. For the detailed
description of each function, please refer to the corresponding contents
of "Function and Operation".
No.
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Purpose
No function is assigned to the preset key.
Quickly switch between high power and low
power.
Quickly establish an emergency call. This is the
recommended option for the orange key.
Quickly end an emergency call initiated
outward.
Press this key to toggle the host between
pass-through mode and transit mode.
Quickly turn on/off encryption for channel (only
for digital mode).
Quickly turn on or off the voice control function.
Call shortcuts, after pressing a one-click call,
send the corresponding call, SMS or other
application function.
Press this key to enter the digital contact list to
initiate a call or call related services.
Press this key to switch to the previous zone.
Press this key to switch to the next zone.
Quickly select zones that allow users to switch
between the two zones.
Quickly lock the numeric keypad (not including
the [PTT] key).
Shortcut name
None
Adjust Power
Level
Emergency on
Emergency off
Talk Around
Encrypt
VOX
One Touch
Call 1
Contact
Zone Down
Zone Up
Zone Change
Keypad Lock
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Note:
●The same key short press and long press can achieve
different functions, specific by the dealer settings.

PREPARATION BEFORE USE
08 09
1.Accessories installation
1.1 Install and Remove the Antenna
Turn off the radio and insert the antenna into the mounting
hole and turn clockwise.
When removing the antenna, turn it counterclockwise to
remove the antenna.
Do not shake the top of the antenna by hand, otherwise it
will reduce the working performance and service life of the
antenna.
1.2 Install and Remove the Battery
1）Install the battery
• Align the battery with the battery holder on the back of the
radios. Push the battery firmly into the radios and slide the
battery up until it locks into place.
2）Remove the battery
• To remove the battery, turn off the transceiver. Slide the
battery latch into the unlocked position and hold, and then
slide the battery downward and out of the battery mount.
1.3 Install and Remove the Belt Clip
• Unscrew the two screws on the battery. Align the two
screw holes in the belt clip with the screw holes in the top of
the battery, and then tighten the screws
• Loosen and remove the screw from the belt clip (it is
recommended that you screw the screw to the battery for
the next time you are installing and using the belt clip).
1.4 Install external Headphones and Microphone
(Optional Separately)
Open the headset cover, the headset plug into the headset
hole will be ok. When you do not need to use the headset,
unplug the headset plug from the earphone jack and cover
the earphone cap. When not using the universal interface,
please cover the dust cover.
2. Charging
Be sure to ensure that the product is off when charging.
Battery into the charger may be charging red flashing
constantly flashing, this is the battery power is too low, the
charger to protect the battery pre-charge process, is a
normal phenomenon, Generally continue for 30 seconds to
turn the red light of the normal state of charge.
Please use the charging seat specified by our company to
charge the battery, the charging seat indicator shows the
charging status.
1）Plug the power adapter into a power outlet;
2）Plug the other end of the power adapter into the socket
on the back of the charging cradle;
3）Insert the battery or the battery-equipped product into
the charging cradle correctly; The indicator light on the
charging cradle shows the charging status. When the
indicator light is red, it indicates the start of charging. When
the indicator turns green, the charging is completed. The
specific table below.

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Indicator display
Red light
Green light
Current charge status
In charging
The charging is completed
3.Battery information
3.1. The first use of the battery
Since the battery is not fully charged at the factory, please
charge the new battery before use. Under normal circum-
stances, the battery when used for the first time, need to
charge 4 hours, lithium-ion battery charging using slow
charge or fast charge can be performed when charging. It is
recommended that the new battery be operated as above
for the first three uses. When you find the battery power is
low, you need to charge the battery.
3.2. Suitable battery type
Please use the specified battery for charging; use of other
batteries may cause explosion, resulting in human injury.
3.3. Battery safety attention
1）Do not allow metal contacts (including coins, keys,
jewelry, or other conductive metal) to be touched by the
battery contacts or pole pieces. Otherwise, the battery may
short circuit, discharge, heat or leak, which may result in
damage to the item or personal injury. Therefore, be careful
when handling any battery.
Note:For best battery performance, charge for a minimum
of 4 hours on first charge.
2）Do not short-circuit the battery terminals or discard the
battery in a fire. Do not disassemble the battery pack. When
the battery is discarded, please put into a dedicated battery
recycling box.
3）Battery normal operation instructions
• Please charge the battery indoors, battery charging at
room temperature best.
• Under normal circumstances, the charger indicator from
red to green when the battery is fully charged, at this time
the battery can be removed.
• You can charge when Battery installed in the radios, but
when charging is best to turn off the radios, to ensure that
the battery is fully charged.
• Please do not charge the battery when the battery power
is not used up (after the battery is exhausted, the voice
prompt alarm will be given), which will shorten the service
life of the battery.
• Do not put a fully charged battery back on the charger to
"power up" again, as this operation significantly reduces the
cycle life of the battery.
3.4. Extend battery life
1）Battery performance will reduce below -20 ℃tempera-
ture conditions. Prepare back-up batteries for use in colder
weather. Please do not throw away cold batteries that
cannot work. These batteries may be used at room
temperature.

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Battery icon
Battery power High Medium Low Insufficient
BASIC OPERATION
1. Power on the Radio
To turn on the power, turn the [Power Switch/Volume
Control] knob clockwise until you hear a "click" sound and a
short beep sounds. To turn off the radio, turn the knob
counterclockwise until you hear a click. In English
language, if voice announcement is enabled, the channel is
broadcast when the terminal is powered on or when
switching channels.
Note: If you disable the tone function of this product, there
will be no boot tone.
If all LED's are disabled, the transmit/receive light does not
come on during turning on. A short beep sounds to indicate
successful boot detection.
2. Volume Adjustment
Turn on the power, turn the [Power Switch/Volume Control]
knob clockwise to increase the volume of voice reception,
and turn counterclockwise to reduce the volume of voice
reception. When adjusting the volume, the product LCD
displays the corresponding length of the volume bar.
3. Select a Zone
Zone is a channel group in which you can include channels
with the same attributes (such as call type, digital mode
and analog mode) in a zone, which makes it easy for you to
manage existing channels.
The unit supports up to 250 zones, and each zone contains
up to 64 channels.
2）Dusting the battery contacts may affect the battery life.
Please wipe the contacts with a clean, dry cloth before
inserting the batteries into the radios.
3.5. Battery storage needs to know
1）Since the battery will have a self-discharge phenome-
non, the battery when not in use for a long time, please fully
charge the battery and then stored to avoid over-discharge
of its battery to damage the battery.
2）When the battery is in storage, remove the battery to
recharge when stored about 6 months. To avoid over-dis-
charge of electrolyte affect battery capacity.
3）Pay attention to the temperature and humidity of the
battery storage environment. Store the battery at room
temperature in a cool, dry place to minimize self-discharge
of the battery.
4.Battery Voltage & Power Indication
If the dealer has set the【Battery Power Indication】
shortcut key for this radios, you can press this shortcut
button to have a voice broadcast " Battery High" or "Battery
Middle" or "Battery Low". The current battery level is
displayed at the top right of the screen. The battery icon is
as follows:

When the radio is standby, press [Up and Down Screen]
key to switch the primary and secondary channels.
1) The black pointer points to the primary channel and
is the digital channel; the other channel is the secondary
channel.
• If the black pointer points to the primary channel and
indicates that the channel is an analog channel; the other
channel is the secondary channel.
2) Press [BACK] to switch to dual band single standby or
dual band dual standby.
• If the front of the sub-channel is displayed , it indicates
that the product is working in the mode of “dual band single
standby” and the sub-channel does not receive the signal
at this time.
Note: The ARTS Auxiliary function does not work because
the dual keep mode is in the primary and secondary
channel scanning status, DTMF, auto-scan and work alone.
6. Select Channel, User ID, Group Call ID
Power on and in channel mode, if you have more than one
zone in the radio, select the desired zone and press [ ] /
[ ] key to select the desired channel, user alias or ID, or
the group alias or ID.
7. Receive and Reply Group Calls
To receive a call from a user group, the transceiver must be
configured to belong to the talk group.
When receiving a group call:
1) LED indicator light is green.
You can select a zone in two ways:
3.1 Select by programming key:
If the dealer has set the [Zone Up] and [Zone Down]
shortcuts key for you, press this shortcut to switch to the
desired zone.
3.2 Select through the menu:
1) Press [MENU] key to enter the main menu.
2) Press [ ] / [ ] key to Zone, and then Press [MENU]
key to select the entry zone list.
3) The current zone is displayed on the screen and
displayed as the zone name.
4) Press [ ] / [ ] key to enter the desired zone, and then
Press [MENU] key to select.
5) The screen immediately displays the selected zone and
returns to the selected zone screen.
Note: The radios must retain at least one zone, and each
zone retains at least one channel.
4. Digital and Analog Channel Switch
Each channel in this product can be configured by the
dealer as either an analog channel or a digital channel. If
the current zone contains digital channels and analog
channels, you can switch channels to analog channels or
digital channels.
5. Single/Dual Band Mode Switch
If the dealer has set the [Up and Down Screen] shortcut
key (Namely [A/B] key) for you, press this shortcut key to
switch the upper screen or the lower screen.
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2) The top line of the screen displays status icons such as
RSSI. In the display area below the top line: the first line
shows the group alias, the group call icon is displayed in
the middle and the received target band (CH A or CH B) is
indicated, and the caller ID is displayed at the bottom
(digital mode only).
3) Hold the radios in its upright position and at a distance of
1 to 2 inches (2.5 to 5.0 cm) from the mouth. If the“Channel
Free Tone”function is enabled, when the transmitting radio
releases the [PTT] key, you will hear a short beep indicating
that the channel is idle and waiting for your answer.
4) Press [PTT] key during the call hold time to reply to the
call and the LED indicator lights up in red.
5) Release the [PTT] key to answer.
6) If there is no voice activity for the scheduled time period,
the call is terminated.
Note: If the radios receives a group call and is not at home
at this time, it remains on the current screen until the call is
answered.
8. Receive and Reply Private Call
A Private Call is an individual radios call to another
individual radios. There are two types of Private Call types:
the first type, the radios presence test is performed before
the call is ready, and the other type is ready for the call
immediately.
When receiving a Private Call:
1) LED indicator light is green.
2) The top line of the screen shows the status icons such
as RSSI. In the display area below the top line, The first
line shows a Private Call, the Private Call icon is displayed
in the middle and the received target band (CH A or CH B)
is indicated, and the user alias or ID is displayed at the
bottom (digital mode only).
3) Hold the radios in a vertical position and keep it 1 to 2
inches (2.5 to 5.0 cm) from the mouth. If the "Channel Idle
Tone" feature is enabled, when the transceiver intercepts
the [PTT] key, you will hear a short beep indicating that
the channel is free for you to answer.
4) Press [PTT] key during the call hold time to reply to the
call and the LED indicator lights up in red.
5) Release the [PTT] key to answer.
6) If there is no voice activity for the scheduled time period,
the call is terminated.
9. Receive All Calls
All calls are an individual radios call to all radios on the
channel. It is used to publish important notices that require
special attention from users.
When receiving all call:
1) LED indicator light is green.
2) The top line of the screen shows the status icons such
as RSSI. In the display area below the top line: The first
line displays the full call, the full call icon is displayed in the
middle and the received target band (CH A or CH B) is
indicated, and the user alias or ID is displayed at the
bottom (digital mode only).

4) Release the [PTT] key to answer. When the target radio
replies, the LED indicator will light green. The group call
icon, call group alias or ID, and radios alias or ID is
displayed on the screen.
5) If the Channel Idle Tone feature is enabled, when the
target radio releases the [PTT] key, you will hear a short
beep indicating that the channel is free for you to answer.
Press [PTT] key to answer, or if there is no voice activity for
a predetermined period of time, the call is terminated.
6. The radios return to the screen before receiving the call.
You can also initiate a group call from your address book.
10.2 Start a Private Call
1) Channel mode Press [ ] / [ ] to select the channel
using the activated private call alias or ID.
2) Hold the radios in its upright position and keep it at a
distance of 1 to 2 inches (2.5 to 5.0 cm) from the mouth.
3) Press [PTT] key to initiate a call, LED indicator light is
red. The top line of the screen shows status icons such as
RSSI. In the display area below the top line, the first line
shows a Private Call, the Private Call icon is displayed in
the middle, and the user alias or ID is displayed at the
bottom (digital mode only).
4) Release the [PTT] key to answer. When the target radio
replies, the LED indicator will light green.
5) If the "Channel Idle Tone" feature is enabled, when the
target radio releases the [PTT] key, you will hear a short
beep indicating that the channel is free for you to answer.
3) After the termination of all calls, the radios will return to
the screen before receiving the call. If "channel idle tone" is
enabled, you will hear a short tone when the radios
releases the [PTT] key, indicating that the channel is ready
for use and you cannot reply to all calls.
Note: When you receive an all call, if you switch to another
channel, the transceiver stops receiving the full call. During
a full call, you will not be able to use any of the prepro-
grammed keys until the call is ended.
10. Making a Call
You can choose a channel, user ID or talk group in the
following ways:
• Channel mode Press [ ] / [ ] to select the channel
• Pre-programmed One-Touch call key
• Contacts list
10.1 Initiate Group Call
To initiate a call to a user group, the transceiver must be
configured to belong to the talk group.
1) Channel mode Press [ ] / [ ] to select the channel
using the activated talk group alias or ID.
2) Hold the radios in its upright position and keep it at a
distance of 1 to 2 inches (2.5 to 5.0 cm) from the mouth.
3) Press [PTT] key to initiate a call, LED indicator light is
red. The screen displays the talk group alias or ID, as well
as the group call icon.
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Press [PTT] key to answer, or if there is no voice activity for
a predetermined period of time, the call is terminated.
6) You will hear a short tone, the screen shows the call
ended.
Note: You can also initiate a Private Call via digital contacts
and manual dialing in your contacts, or make quick contact
access via a keyboard entry to find the desired target
radios.
10.3 Initiate All Calls
This feature lets you signal all users on the channel. The
radios must be programmed to allow you to use this
feature.
1) Channel mode Press [ ] / [ ] to select the channel
using the activated all-call group alias or ID.
2) Hold the radios in its upright position and keep it at a
distance of 1 to 2 inches (2.5 to 5.0 cm) from the mouth.
3) Press [PTT] key to initiate a call, LED indicator light is
red. The screen displays the all-call group alias or ID, as
well as the all-call icon.
Note: Channel users cannot reply to all calls.
10.4 One-Touch Call
One-Touch calling features make it easy to group calls or
Private Calls to predefined aliases or IDs. This function can be
assigned to short programming or long programming keys.
You can assign only one alias or ID to a one-touch call key,
and the radios can have multiple programmed one-touch
call keys.
20 21
1) Press preprogrammed one-touch call key to initiate a
group or Private Call to a predefined alias or ID.
2) Hold the radios in its upright position and keep it at a
distance of 1 to 2 inches (2.5 to 5.0 cm) from the mouth.
3) Press [PTT] key to initiate a call, LED indicator light is
red. The screen displays the talk group/user alias or ID, as
well as the group call /callout icon.
4) Release the [PTT] key to answer. When the target radio
replies, the LED indicator will light green.
5) If the “Channel Idle Tone” feature is enabled, when the
target radio releases the [PTT] key, you will hear a short
beep indicating that the channel is free for you to answer.
Press [PTT] key to answer, or if there is no voice activity
for a predetermined period of time, the call is terminated.
6) The radios return to the screen before receiving the call.
11. Analog Channel Call
On the analog channel, hold down the [PTT] key and speak
into the microphone, to transmit. Please release [PTT] key
to receive.
11.1 DTMF Call
1) Making a Call
• Under the analog channel, press and hold the [PTT] key
and Press keypad number key.
• Under analog channel, long press [ # ] key to switch to
manual dialing mode, enter the desired number, short press
[PTT] key to start DTMF call.

Description
Turn off alarm function (alarm disabled),
The terminal emits a sharp alarm tone and the
control center does not receive an alarm signal.
When alarms, the radio gives an audible and
visual prompt.
After sending an emergency alert signal to the
control center, a local alarm tone is sounded. In
the alarm state, there are indications of sound
and visualization.
When alarms, the radio will not give any audible
or visual prompt. At the same time, no sound is
made on any received audio.
When alarms, the radio will not give any audible
or visual prompt. However, the radio sounds
when you press and hold the PTT button to
initiate a call or respond to a call.
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Emergency Type
Disable
Only whistle
Conventional
Alarm whistle
Silent
Silence with
voice
2) Receive Calls
When the host computer has configured DTMF as the
receiving signaling system of the current channel, when
decoding the code word is DTMF personal ID code, the
decoding is successful. During the resetting time, it can talk
to the other party. The reset time needs to be re-decoded.
11.2 PTT ID Call
In analog mode, you can program the radio to configure the
DTMF on-line code and off-line code; and enable the
up-down-line code on the analog channel. When enabled,
the code will be sent each time the [PTT] key is pressed,
and the code will be released when the [PTT] key is
released.
1. Emergency Alarm
In the event of an emergency, you can use this feature to
ask your fellow or control center for help. Emergency alarm
has the highest priority, you can alarm whether the radios is
transmitting or receiving.
Alarm initiator to exit the alarm mode, there are two cases:
•Turn off the radio to exit the whole machine alarm.
•Press pre-programmed [Emergency Off] shortcut key to
exit the alarm.
•In other ways, when exiting alarm mode, the alarm on the
current channel can only be temporarily exited. When
reselecting the channel, the alarm will continue.
EMERGENCY ALARM FUNCTION
2. Emergency Type
The radio prompts in different modes for different Emergen-
cy types, as shown in the following table.

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Alarm mode
Emergency
alarm
Emergency
alarm and
call (alarm
call)
Emergency
alarm and
voice
(emergency
call)
Description
In this mode, you can press and hold the [Emergen-
cy mode on] button to send an alarm tone to your
partners or control center but can’t talk to the other
party.
In this mode, you can press and hold the [Emergen-
cy mode on] button to send an alarm tone to your
partners or control center, and then press and hold
the [PTT] button to speak to the microphone, and
your voice and surrounding background sound will
be sent to the receiver.
In this mode, you can press and hold the [Emergen-
cy mode on] button to enter the alarm transmission
channel. The product automatically activates the
“emergency microphone” (without holding down the
PTT button). You can speak to the microphone, and
your voice and the surrounding background sound
will be sent to receiver.
3. Alarm Mode
Except the alarm type “Disable,Only whistle, alarm whistle”,
other alarm types support the following alarm modes. You
can ask the dealer to select one of them
Note: The following methods use “Conventional” alarm type
as an example).
4. Send Emergency Alert
This feature allows you to send an emergency alert, which
belongs to a non-voice signal and will trigger a prompt on
another transceiver.
1) Press preprogrammed [Emergency On] key.
2) The screen displays “Alarm Sending” alternating with
radios ID. The LED is lit red and the emergency call icon
appears on the home screen.
3) When an emergency alert confirmation is received, an
emergency call tone sounds and the LED flashes green.
The screen briefly shows "Send Success”.
• Or if the radios do not receive any emergency alert
confirmation and a beep sounds after all retries are
exhausted, the screen displays No ACK.
4) The radios exit the emergency alert mode and returns to
the home screen. If your radios are set to "Silent," it will not
show any voice or visual cues in emergency call mode.
5. Receive Emergency Alert
1) When an emergency alert is received, the screen
displays "Alarm Rcvd", which alternates with the sender's
alias or ID.
2) A beep sounds and the LED flashes orange.
3) If enabled, your transceiver will automatically acknowl-
edge the emergency alert. When the radios receive an
emergency alert, the screen displays "Alarm Rcvd", until an
acknowledgment is sent and the emergency mode exits.

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You will not be able to receive any other prompts or show
any other calls until you exit the screen for receiving an
emergency alert.
Note: When an alarm sounds, the LED indicator flashes
orange and any key can be pressed to stop the alarm tone.
The current emergency mode is released by switching
channels or turning off the radio.
6. Send an Emergency Alert With Voice Follow
This feature allows you to send an emergency alert to
another transceiver. After confirmation, your radios
microphone is activated automatically, allowing you to
communicate with other radios without pressing the [PTT]
key. This activated microphone status is called "Hot Mic". If
the [PTT] key is pressed during the preprogrammed Hot
Mic launch, the transceiver ignores [PTT] press and
remains in emergency mode.
1) Press preprogrammed [Emergency On] key.
2) The screen displays “Alarm Sending”, the LED is lit red
and the emergency call icon is displayed.
3) When the alarm confirmation of another intercom is
received, the message “Send Success” is displayed, the
LED indicator lights up in red, the radio of the intercom
automatically activates and emits a signal, and speaks
clearly to the microphone until the end of the Hot Mic.
• If the emergency alert request fails (such as the target
radio that received the alert is not turned on or is not on the
pre-programmed alert jump channel), the screen briefly
displays “No ACK” and the radios will continue to send
emergency calls.
4) The Hot Mic duration ends and stops transmitting. The
screen displays “Emergency Call” and the contact and
intercom ID alternate. The LED indicator lights up in orange
and is accompanied by a local alarm tone until the end of
the reception duration.
5) After the number of emergency calls of the radios is
completed, it will automatically stay on the emergency call
alarm interface.
Note: Press pre-programmed [Emergency Off] key, the screen
displays”Cancel Alarm” and exits the emergency mode. Or
cancel the current emergency mode by switching channels.
7. Receive an Alert Call
The radios that receive the emergency call must be
selected to the pre-programmed alarm-jump channel and
the jump channel must be a group call.
1) Upon receiving an urgent alert request, the screen
displays” Alarm Rcvd” and is displayed alternately with the
sender's alias or ID.
2) An alarm tone sounds and the LED indicator flashes
orange.
3) The alarm tone stops, the LED indicator lights up in
green, enters the receiving state, and listens to the other
party's speech until the end of the hot microphone.

28 29
4) When an alarm tone sounds, the LED indicator flashes
orange. Hold the intercom in a vertical position and keep it
1 to 2 inches (2.5 to 5.0 cm) from the mouth.
5) Press [PTT] key to initiate the call, the LED indicator
lights up in red, and the talk group icon appears on the
screen.
6) Release the [PTT] key to answer.
Note: When an alarm sounds, the LED indicator flashes
orange and any key can be pressed to stop the alarm tone.
The current emergency mode is released by switching
channels or turning off the intercom.
8. Initiate an Emergency Call
After the alarm is activated, the alarm code is not required
to be sent for an impolite number and politeness, and the
host immediately initiates an emergency call. Once
confirmed, your radios microphone is automatically
activated, allowing you to communicate with other radios on
the pre-programmed alarm jump channel without pressing
the [PTT] key. This activated microphone state is called a
"Hot Mic". During the pre-programmed Hot Mic duration, in
addition to pressing the pre-programmed [Emergency Off]
key to cancel the alarm, pressing any other key will remain
in emergency mode. Until the end of the Hot Mic duration.
1) Press pre-programmed [Emergency On] key.
2) The LED indicator lights up in red and the emergency
call icon appear on the main screen.
3) The radio of the radios automatically activates and emits
a signal, speaking clearly to the microphone until the end of
the Hot Mic.
4) The Hot Mic duration ends and stops transmitting
signals. The screen displays”Alarm Sending” and the
contact and intercom ID alternate, and the LED indicator
lights up in orange until the end of the reception duration.
5) During the duration of the reception, you can answer the
other party's call.
Note: Press pre-programmed [Emergency Off] key, the
screen displays “Cancel Alarm” and exits the emergency
mode.
9. Receiving an Emergency Call
The radios that receive the emergency call must be
selected to the pre-programmed alarm-jump channel and
the jump channel must be a group call.
1) Upon receiving an emergency alert, the screen displays
the talk group icon and the sender's alias or ID alternately
displayed.
2) The LED indicator lights up in green and listens to the
other party until the transmitter's Hot Mic duration ends.
3) With the LED off, hold the intercom away from the
vertical position and keep it at a distance of 1 to 2 inches
(2.5 to 5.0 cm).
4) Press [PTT] key to initiate the call, the LED indicator lights
up in red, and the talk group icon appears on the screen.

30 31
10. Restart Emergency Mode
It can happened in two situations:
•When the transceiver is in emergency mode and changes
channel, it will exit emergency mode. If an emergency alert
is activated on the new channel, the transceiver resumes
the emergency call.
•Press preprogrammed [Emergency On] key in the
emergency call start/transmit state. This way the radios will
exit the status and restart the emergency call.
11. Exit Emergency Mode
The transceiver exits emergency mode when one of the
following happened:
• Receive emergency alert confirmation (emergency alerts
only), or
• The number of major attempts to send an alert has been
reached, or
• Press Preprogrammed [Emergency Off] , or
• Press [PTT] key.
Note: If the radio is turn off, it will exist the emergency
mode. When turned on again, the radio will not restart
emergency mode
12. Lone Worker
This feature is ideal for people who work alone. If you
encounter unexpected situations during individual opera-
tion, you can’t operate the radio in preset time.
The radio will automatically send alarm to your partner or
control center for help.
1) Turn on individual operation
● Through programming software, this function is turned on
when the radio is started.
2) If you do not operate the radio in the preset response
time, the radio will prompt before the response time is up
(depending on the dealer settings). At this point, you can
end the prompt with a valid physical operation (knob or key
operation). When the response time is up, the radio will
automatically turn on the alarm system of the current
channel.
3) Turn off individual operation
● Turn this function off by programming software.
Note: If you do not turn off the individual operation function
before shutting down, the function is still active the next
time you turn on the radio.