Hytera Communications MD78XU1 Digital Mobile Radio User Manual MD780 DMR Owner s Manual
Hytera Communications Corporation Ltd. Digital Mobile Radio MD780 DMR Owner s Manual
Users Manual
Preface 
Thank you for purchasing Hytera MD780 DMR digital mobile radio. As a product built to 
the DMR standard, MD780 is endowed with ergonomic design and comprehensive digital 
functions to deliver an advanced communication solution. With MD780, you can make use 
of digital functions to top the competition!   
To derive optimum performance from your radio, please read this manual and the supplied 
Safety Information Booklet carefully before use.   

  1
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 a key and release it quickly;   
Long press: to press a key and remain holding it down for a predefined period (2 
seconds by default);   
Hold down: to press a 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 

  2
communication quality.   
Copyright Information  
Hytera and CRS are registered trademarks of Hytera in the PRC and/or other countries or 
areas. Hytera retains the ownership of its trademarks and product names. All other 
trademarks and/or product names that may be used in this manual are properties of their 
respective owners.   
The Hytera product described in this manual may include Hytera computer programs 
stored in memory or other media. Laws in the PRC and/or other countries or areas 
preserve for Hytera exclusive rights for Hytera computer programs. The purchase of this 
product shall not be deemed to grant, either directly or by implication, any rights to the 
purchaser with respect to Hytera computer programs. Any Hytera computer programs 
may not be copied, modified, distributed, decompiled, or reverse-engineered in any 
manner without the prior written consent of Hytera.   
Disclaimer  
Hytera endeavors to achieve the accuracy and completeness of this manual, but no 
warranty of accuracy or reliability is given. All the specifications and designs are subject to 
change without notice due to continuous technology development. No part of this manual 
may be copied, modified, translated, or distributed in any manner without the express 
written permission of Hytera.   
If you have any suggestions or would like to learn more details, please visit our website at: 
http://www.hytera.cn.  
Note: Any changes or modifications not expressly approved by the party responsible for 
compliance could void the user’s authority to operate the equipment 
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 
z    United States Federal Communications Commission, Code of Federal 
Regulations; 47CFR part 2 sub-part J 
z    American National Standards Institute (ANSI)/Institute of Electrical and Electronic 
Engineers (IEEE) C95. 1-1992 
z    Institute of Electrical and Electronic Engineers (IEEE) C95. 1-1999 Edition 
z    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: 
Transmit and Receive 
To transmit (talk), push the Push-To-Talk (PTT) key; to receive, release the PTT key. 
FCC Licensing Information 
Part 15 Compliance 
This equipment has been tested and found to comply with the limits for a Class B digital 
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide 
reasonable protection against harmful interference in a residential installation. This 
equipment generates, uses and can radiate radio frequency energy and, if not installed 
and used in accordance with the instructions, may cause harmful interference to radio 
communications. However, there is no guarantee that interference will not occur in a 
particular installation. If this equipment does cause harmful interference to radio or 
television reception, which can be determined by turning the equipment off and on, the 
user is encouraged to try to correct the interference by one or more of the following 
measures:  
z    Reorient or relocate the receiving antenna. 
z    Increase the separation between the equipment and receiver. 
z    Connect the equipment into an outlet on a circuit different from that to which the 
receiver is connected. 
z    Consult the dealer or an experienced radio/TV technician for help. 
FCC Licensing Requirements 
A license from Federal Communications Commission is required prior to use. Your dealer 
will program each radio with your authorized frequencies, signaling codes, etc., and will be 
there to meet your communications needs as your system expands. Contact your dealer 
for more information. 
  1
  3
Contents 
Checking Items in the Package......................................................................................... 4 
Radio Overview................................................................................................................. 5 
Front Panel ................................................................................................................ 5 
Rear Panel................................................................................................................. 6 
Programmable Keys .................................................................................................. 6 
Installation......................................................................................................................... 7 
Status Indicators.............................................................................................................. 10 
LCD Icons ................................................................................................................ 10 
LED Indicator ............................................................................................................11 
Basic Operations............................................................................................................. 12 
Turning the Radio On/Off......................................................................................... 12 
Adjusting the Volume ............................................................................................... 12 
Selecting a Zone...................................................................................................... 12 
Selecting a Channel................................................................................................. 13 
Digital/Analog Switch ............................................................................................... 13 
Call........................................................................................................................... 13 
Menu Navigation ............................................................................................................. 15 
Contact ................................................................................................................... 15 
Message .................................................................................................................. 16 
Call Log.................................................................................................................... 17 
Scan......................................................................................................................... 18 
Zone......................................................................................................................... 19 
Settings.................................................................................................................... 19 
Functions and Operations............................................................................................... 21 
Scan......................................................................................................................... 21 
Public Address ......................................................................................................... 22 
Talk Around .............................................................................................................. 22 
Monitor..................................................................................................................... 22 
Squelch Off .............................................................................................................. 23 
Emergency............................................................................................................... 23 
Ignition Sense .......................................................................................................... 27 
Busy Channel Lockout............................................................................................. 28 
Time-out Timer (TOT) .............................................................................................. 28 
Troubleshooting .............................................................................................................. 29 
Care and Cleaning .......................................................................................................... 31 
Optional Accessories....................................................................................................... 31 
Appendix: Input Method .................................................................................................. 32 

  4
Checking Items in the Package 
Please unpack carefully and check that all items listed below are received. If any item is 
missing or damaged, please contact your dealer.   
Palm Microphone                                   Microphone Hanger and Screws 
Mounting Bracket Kit   
Fuse                                              Power Cord 
Owner’s Manual                                    Safety Information Booklet 
Quick Reference Guide                              Radio Unit 

  5
Radio Overview 
Front Panel   
No. Part Name No. Part Name 
○
1 Volume Control / Channel 
Selector Knob ○
2 LED Indicator   
○
3 LCD Display   ○
4 OK/Menu Key 
○
5 Back Key ○
6 Power On/Off key 
○
7 Up Key ○
8 Down Key 
○
9 Speaker ○
10  Programmable Keys 
○
11  Microphone Jack   ○
12  Emergency Key 

  6
Rear Panel   
No. Part Name No. Part Name 
○
1 BNC Antenna Connector ○
2 Power Inlet   
○
3 Accessory Jack ○
4           Antenna Jack   
Programmable Keys 
For enhanced convenience, you may request your dealer to program the keys P1, P2, P3, 
P4, Emergency key,   and    as shortcuts to the functions listed below:   
No.   Shortcut Keys Description 
1 Zone Up Quick access to desired zone 
2 Zone Down Quick access to desired zone 
3  Message   Quick access to the menu “Message” 
4  Contact List   Quick access to Contact List 
5  Call Log   Quick access to the menu “Call Log” 

  7
6  Adjusting Power Level To adjust power level through one button 
press. 
7 Public Address  To allow public addressing via the external 
speaker.   
8 Talk Around  To directly communicate with other radios. 
9  Monitor   
To adjust the condition for incoming signal 
match.   
10  Monitor Momentary   
To adjust the condition for incoming signal 
match.   
11  Squelch Off   
To always unmute speaker no matter whether 
carrier is present or not.   
12  Squelch Off Momentary   
To always unmute speaker no matter whether 
carrier is present or not.   
13 Scan  To receive signals on other channels.   
14 Nuisance Temporary Delete  To temporarily ignore unwanted channel 
activity.   
15 Emergency To summon help in emergent situations.   
16  Adjusting Squelch Level   
To temporarily adjust the squelch threshold 
required for the radio to unmute. 
Note: Long and short press of a key can be assigned with different functions by your 
dealer.   
Installation   
Before you install the radio in a vehicle, be sure to read the following instructions carefully:   
  8
Instructions 
z  The radio operates with negative grounded power supply of 13.2 ± 15%V only. 
Please check polarity and voltage of the power supply on vehicle before you install 
the radio.   
z  Please check how long the screws will extend from the bottom surface of radio, 
before you install the radio. Be sure to drill mounting hole with caution, to avoid 
damage of the vehicle wiring and parts.   
z  Please connect the supplied antenna and power cord to the radio, before you install 
the radio in the bracket. 
z  Install the radio with Hytera supplied mounting bracket, to avoid radio loose in case of 
accidents. The loose radio may cause bodily injury.   
z  Install the radio in a location where it’s easy to reach the front panel controls.   
z  Please make sure there’s sufficient space at back of the radio for wiring.   
z  When the fuse for DC power cord needs replacement, it must be replaced by a fuse 
with the same specification.   
Installation Tools  
z Electric drill  
z  Cross head screwdriver   
z  Hex socket sleeve (used for 4.8*20mm self-tapping screws)   
Installation Steps 
1.  Install the bracket in a location where it’s easy to operate the radio.   
2.  Connect accessories such as antenna and power cord to the radio.   
3.  Slide the radio into the mounting bracket and secure it using the locking knobs.   
4.  Install the microphone hanger in a location where it’s easy to reach the microphone.   
5.  Plug the palm microphone into the microphone jack on the front panel, and then place 
it on the hanger.   

  9
No. Part Name No. Part Name 
○
1 Radio Unit   ○
2 Locking Knobs 
○
3 Mounting Bracket   ○
4 4.8 × 20 mm Self-tapping Screws   
○
5 Palm Microphone   ○
6 4 × 16 mm Self-tapping Screws   

  10
○
7 Microphone Hanger   ○
8 Power Inlet   
○
9 Black Power Cord ○
10  Red Power Cord 
○
11  Fuse   ○
12  BNC Antenna Connector 
Status Indicators   
LCD Icons 
The LCD of your radio displays the radio status, text entries, and menu items. The 
following are the icons that appear on the radio’s display.   
 Standby Interface 
 Status Icons  
Icon Name Icon Radio Status 
 No signal   
RSSI 
 More bars indicate better signal strength 
 New Message/Unread Message 
Message Icons 
 Inbox is full 

 11
 Scanning is in progress 
 Scanning pauses on a non-priority channel 
 Scanning pauses on Priority Channel 1 
Scan Icons 
 Scanning pauses on Priority Channel 2 
 Low Tx power for the current channel 
Tx Power Icons 
 High Tx power for the current channel 
Monitor Icon    Monitor function is active 
Speaker Icon  Speaker is unmuted 
Emergency Icon  
Emergency mode (other than secret emergency) 
is active or an emergency message is received 
The knob currently operates in channel selection 
mode.   
Knob Operation 
Mode Icons 
The knob currently operates in volume adjustment 
mode.   
  Operation Mode Icons 
Icon Name Icon Operation Mode 
Direct Mode: Under this mode, radios 
communicate with each other directly. 
Operation Mode 
Repeater Mode: Under this mode, radios 
communicate with each other via a repeater.   
LED Indicator   
The LED indicator will help you easily identify current radio status.   
LED Indicator   Radio Status 

  12
LED flashes green Powering on 
LED glows red Transmitting 
LED glows green Receiving 
LED flashes orange Scanning is in progress 
Basic Operations 
Turning the Radio On/Off 
To turn the radio on, hold down the Power On/Off key until the following indications are 
given: the radio displays “Hytera" and sounds power-up alert, and LED flashes green.   
To turn the radio off, long press the Power On/Off key.   
Adjusting the Volume 
When the Volume Control / Channel Selector knob operates in volume adjustment 
mode (the radio displays the icon  ), rotate the knob clockwise to increase the 
volume, or counter-clockwise to decrease the volume.   
Alert tone volume is programmable by your dealer.   
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 Zone menu, and use the Up/Down keys to select your desired zone. 
2.  Through the function keys 
You may quickly toggle to your desired zone, through press of the programmed Zone Up 

  13
or Zone Down key. 
Note: You dealer may designate the power-up zone and channel. If not, the radio will 
enter the zone and channel last used.   
Selecting a Channel   
Press the Volume Control / Channel Selector knob to switch it to channel selection 
mode (the radio displays the icon  ), and then rotate the knob to select your desired 
channel.  
Alias of the current channel will appear on the standby screen.   
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 channels through the Volume Control / Channel Selector knob.   
When switching from digital to analog mode, some features such as Message will be 
unavailable.   
Call 
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.   
Note:  
Your dealer may preset a contact for each digital channel. The preset contact could be a 

  14
Private Call number, a Group Call number or an All Call number.   
  Transmitting a call through Contact List or Call Log 
(1)  Go to Contact -> Contact List, or go to Call Log -> 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)  Hold down PTT key to transmit a call.   
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. 
Receiving and Responding to a Call  
 Receiving a Call  

  15
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 
.  
  Note: You cannot respond to an All Call.   
Calls on Analog Channels  
To transmit on an analog channel, hold down the PTT and speak into the microphone. To 
receive, release the PTT.   
Menu Navigation 
Contact   
To access this item, press Menu key in idle mode and then select “Contact”.   

  16
 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.   
Editing a Contact 
You can edit the number and alias of each private 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 individual contact preset 
on the digital channel cannot be deleted either. 
 New Contact 
You can add a Private Call contact to the contact list. The available contact number is 1 to 
16776415.  
 Manual Dial   
You can manually input the Private Call number for calling.   
Message   
To access this item, press Menu key in idle mode and then select “Message”, or press the 
shortcut key for Message directly.   

  17
 New Message 
You can create your desired text message 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 10 received messages. When the inbox is full, the icon   will 
appear.  
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 10 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: Resend, Forward, 
View Details and Delete.   
To delete all messages in the outbox, select “Message -> Outbox -> Delete All”.   
Call Log   
To access this item, press Menu key in idle mode and then select “Call Log”, or press the 
shortcut key for Call Log directly.   

  18
This radio can save up to 10 entries in the lists Outgoing Calls, Incoming Calls and Missed 
Calls respectively. When the memory for call log is full, the oldest entry will be overwritten 
by latest one automatically.   
After accessing a list and selecting an entry, you can perform any of these operations: 
hold down the PTT key to initiate a call; add it to Contact List; or delete it.   
Scan   
To access this item, press Menu key in idle mode and then select “Scan”.   
 Scan On/Off   
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. 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. 

  19
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 first channel in the list can not 
be deleted.   
Zone 
To access this item, press Menu key in idle mode and then select “Zone”.   
After accessing this menu, press Up/Down key to select your desired zone, and then 
press OK key to apply your selection.   
Settings   
To access this item, press Menu key in idle mode and then select “Settings”.   

  20
You can optimize your radio performance by customizing related parameters according to 
actual needs and your preferences.   
 Radio Setting 
(1) Brightness 
To set the display brightness. You can increase or lower it using the Up or Down key.   
(2) Backlight 
To set whether to enable this function. The duration after which the backlight will go out 
can be configured via the programming software.   
(3) 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.   
(4) Language 
To set the language in which all interface information is displayed. At the moment, this 
radio only supports two languages: Simplified Chinese and English. 
(5) 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:   
The default squelch level is “Normal”, 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.   
 Radio Info 
With this option, you can view the basic information of your radio, including serial number, 
radio model, firmware version and etc.   

  21
Functions and Operations 
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 mobile radio will scan according to the scan list set 
for the channel on which scanning starts. The scanning process is as follows:   
z  During scanning, LCD displays icon  , and LED flashes orange.   
z  When activities are detected on a channel, the mobile radio will stay on the 
channel to receive current activities. If your mobile 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. 
z  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.   
z  If you want to continue staying on the channel, press the programmed Monitor 
or Squelch Off key during scan stay.   
3.  To exit the scanning process, you can select “Off” from the menu “Scan”, or press the 
programmed Scan key again.   

  22
Public Address   
This feature allows public addressing via the external speaker. After the feature is enabled, 
your voice will not be transmitted, but output via the external speaker (connected to the 
accessory jack on the rear panel) if you hold down the PTT key and speak.   
Operation:   
1.  Press the programmed Public Address key to enable the feature.   
2.  Hold down the PTT key and speak into the microphone. Then your voice will be 
broadcasted clearly via the external speaker.   
3.  To disable the feature, press the function key again.   
Note: When the feature is enabled, you cannot transmit or receive, nor can you 
enter the menu.   
Talk Around   
You can continue to communicate in DMO 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 DMO mode and RMO mode.   
Note: Under DMO mode, the two terminals must be within talking range of each 
other.   
Monitor  
To adjust match conditions for signal receiving, you can enable the feature “Monitor”. 
Operation:   
(1) Press the programmed Monitor key to enable the feature, and the mobile radio 
displays icon  . To disable the feature, press this key again. Or 

  23
(2) Hold down the programmed Monitor Momentary key to enable the feature, and the 
mobile radio displays icon  . To disable the feature, release this key.   
Squelch Off  
If the feature “Squelch Off” is enabled, your mobile radio’s speaker will keep unmuted no 
matter whether carrier is present.   
Operation:   
(1)  Press the programmed Squelch Off key to enable the feature. Then the mobile radio 
displays icon    and sounds background noise. To disable the feature, press this 
key again. Or 
(2) Press the programmed Squelch Off Momentary key to enable the feature. Then the 
mobile 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 mobile 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:   

  24
Emergency Type Description 
Siren Only In Emergency mode, the mobile radio will sound shrill alarm 
tone and display icon  .  
Regular In Emergency mode, the mobile radio will give audible and 
visible indication. 
Silent In Emergency mode, the mobile radio won't give any audible or 
visible indication. 
Silent with Voice In Emergency mode, the mobile radio won’t give any audible or 
visible indication, but will receive voice ACK from the 
companion or control center automatically.   
Emergency Mode 
Your mobile 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 the companion or 
control center. 
Emergency Alarm with 
Call 
In this mode, you can send alarm information by pressing the 
programmed Emergency key. During emergency process, you 
can hold down the PTT key to make an emergency 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).  

  25
Emergency Alarm with 
Voice to Follow   
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). 
Operation Methods for Analog Emergency   
 Emergency Alarm 
Operation:  Press the programmed Emergency key to send alarm information. The 
mobile radio displays icon   and text information “Sending Alarm!”, with red LED 
glowing. 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 emergency cycles expire, the mobile 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 mobile radio 
displays icon   and text information “Sending Alarm!”, with red LED glowing. 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.   
3. When icon   appears, you can receive. And when a call is received, the icon 
 appears. 
Two methods are available for you to exit the Emergency mode: 

  26
1.  After the preset alarm tone cycles and voice cycles expire, the mobile radio will exit 
the Emergency mode automatically.   
2.  Long press the programmed Emergency key. 
Note: Your dealer may set the number of alarm tone cycles, alarm tone duration, 
number of voice cycles, duration of each cycle and Tx interval.   
Operation Methods for Digital Emergency   
 Emergency Alarm 
Operation:  
Press the programmed Emergency key to send alarm information. The mobile radio 
displays icon    and text information “Sending Alarm!”, with red LED glowing.   
If an ACK is received, an alert tone will sound, and the mobile radio displays icon   
and text information “Success”, with red LED flashing;   
The following methods are available for you to exit the Emergency mode: 
1.  Once an ACK is received, or the emergency cycles expire, the mobile radio will exit 
the Emergency mode automatically.   
2.  Hold down the PTT key. 
3.  Long press the programmed Emergency key. 
 Emergency Alarm with Call 
Operation:   
1.  Press the programmed Emergency key to send alarm information. The mobile radio 
displays icon    and text information “Sending Alarm!”, with red LED glowing.   
2.   If an ACK is received (an alert tone will sound, and the mobile radio displays icon 
 and text information “Success”, with red LED flashing), press the PTT key to 
make an emergency call (the mobile radio displays icon , with red LED glowing). 
3.  After the emergency call is transmitted, please release the PTT key to receive. When 
a call is received, the icon   appears.  

  27
To exit the Emergency mode, long press the programmed Emergency key. 
 Emergency Alarm with Voice to Follow 
Operation:   
1.  Press the programmed Emergency key to send alarm information. The mobile radio 
displays icon    and text information “Sending Alarm!”, with red LED glowing.   
2.  After an ACK is received (an alert tone sounds, and the mobile radio displays icon 
 and text information “Success”, with red LED flashing), and icon   
appears, you can speak into the microphone to make an emergency call.   
3. When icon   appears, you can receive. And when a call is received, the icon 
 appears. 
If the preset voice cycles expire, you can press the PTT key to make the emergency call 
again (the mobile radio displays icon  , with red LED glowing). After the emergency 
call is transmitted, please release the PTT key to receive (the icon   appears). When 
a call is received, the icon   appears.  
To exit the Emergency mode, long press the programmed Emergency key. 
Note: Your dealer may set the number of voice cycles, duration of each cycle and Tx 
interval.  
Ignition Sense 
The following options are available via the vehicle ignition. You may ask your dealer to 
assign any one to your mobile radio.   
z PTT Disable: The PTT key is enabled or disabled by following the ignition sense.   
Operation: To enable the PTT key, start the engine; to disable the PTT key, stop the 
engine.   
z Ignition or Switch: The mobile radio powers on or off by following either the ignition 

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sense or the Power On/Off key. 
Operation: To power on the mobile radio, start the engine or hold down the Power 
On/Off key; to power it off, stop the engine or long press the Power On/Off key.   
z Ignition Only: The mobile radio powers on or off by following the ignition sense only. 
The Power On/Off key does not work.   
Operation: To turn on the mobile radio, start the engine; to turn it off, stop the engine 
(The Power On/Off key does not work). 
Busy Channel Lockout 
If enabled via the programming software, this feature can prevent your mobile radio 
interfering with other transmitting terminals on the same channel. If you hold down the 
PTT key while the channel is in use, your mobile 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 mobile radio will automatically terminate 
transmission 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 mobile radio will alert you to the TOT 
expiration in advance. 
 Note: This feature is null in Emergency mode. 

  29
Troubleshooting   
Phenomena   Analysis   Solution   
The equipment can not 
be powered on.   
The power cord may be 
unconnected.   Connect the power cord correctly. 
The volume may be set to a low 
level.   
Increase the volume by rotating 
the Volume Control knob 
clockwise.   
The antenna may get loose or 
may be improperly installed.   
Power off the radio, re-install the 
antenna and power on the radio 
again.   
During receiving 
signals, the voice is 
weak, discontinuous or 
totally inactive.   
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.   
The frequency or signaling may 
be inconsistent with that of other 
members.   
Set your TX/RX frequency or 
signaling to the same as that of 
other members.   
You can not 
communicate with other 
members in Analog 
mode.   You may be too far away from 
the group members.   
Move towards other members. 
And make sure that you are within 
the communication range.   
You can not 
communicate with other 
Your ID may be inconsistent 
with that of other members. 
Set your ID to the same as that of 
other members.   

  30
members in Digital 
mode although there is 
receiving indication.   
Consequently, the digital 
carrier can be received but can 
not be demodulated.   
You may be interrupted by 
radios using the same 
frequency.  
Change the frequency, or adjust 
the squelch level.   
Irrelevant 
communications or 
noises are heard on the 
analog channel.   The radio may be set with no 
signaling.   
Set your radio with signaling to 
avoid interference at the same 
frequency, and make sure that all 
members share the same 
signaling.   
You may be too far away from 
other members.   
Move towards other members, 
power off your radio and then 
restart it.   
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 flat area, 
and restart the radio.   
The noise is too loud.   
You may suffer from external 
disturbance such as 
electromagnetic interference.   
Stay away from equipment that 
may cause interference.   
You can not use the 
keys.   
The keypad may fail to function 
temporarily.   Restart the radio.   
There is no display.   The LCD may fail to function 
temporarily.   Restart the radio.   
If the above solutions can not fix your problems, or you may have some other troubles, 
please contact us or your local dealer for more technical support.   

  31
Care and Cleaning   
To guarantee optimal performance as well as a long service life of your mobile radio, 
please follow the tips below.   
Radio Care   
  Keep the mobile radio at a place with good ventilation and heat dissipation to facilitate 
normal work.   
  Do not place irrelevant articles on top of the mobile radio to ensure optimal heat 
dissipation.  
  Do not place the mobile radio in corrosive agents, solutions or water.   
Radio Cleaning   
  Clean up the dust and fine particles on the radio parts with a clean and dry lint-free 
cloth or a brush regularly.   
  Use a non-woven fabric with neutral cleanser to clean the keys, control knobs, LCD 
and jacks after long-time use. Do not use chemical preparations such as stain 
removers, alcohol, sprays or oil preparations. Make sure the mobile radio is 
completely dry before use.   
Caution: Power off the mobile radio before cleaning. 
Optional Accessories   
The following items are the main optional accessories for the radio, and please consult 

  32
your local dealer for more other accessories.   
External Speaker SM09D1   Desktop Microphone 
SM10A1 
Programming Cable (USB 
Port) PC37 
Antenna   
Note: Use the accessories specified by Hytera only. If not, Hytera shall not be liable 
for any losses or damages arising out of use of unauthorized accessories.   
Appendix: Input Method   
You can enter aliases, numbers or messages using the keypad. This mobile radio 
supports the following input methods: Chinese Pinyin (simplified), English and Number.   
 Chinese Pinyin (Simplified)   
Operation:   
1. Press    to switch to Chinese Pinyin mode;   
2.  Enter the pinyin through alphanumeric keys; then a list of possible combinations and 
corresponding characters will appear;   
3. Use the Up/Down key to choose the right pinyin;   
4. Press the OK key to highlight the characters, and choose the right character using the 
Up/Down key;   
5. Press the OK key to enter the selected character.   
You can repeat the above steps to continue.   

  33
 English   
Operation:   
1. Press    to switch to English mode;   
2. Press    to switch between Uppercase mode and Lowercase mode;   
3.  Enter the English letters through alphanumeric keys;   
4. Use the Up/Down key to choose the right letter;   
5. Press the OK key to enter the selected letter.   
You can repeat the above steps to continue.   
 Number   
Operation:   
1. Press    to switch to Number mode; 
2.  Enter the numbers through alphanumeric keys  to  .   
 Special Character   
In Chinese Pinyin mode, use   to enter common punctuations and special 
characters, and in English input mode, use  .   
To input a space, press  .   
 Note: You can use the Up/Down key to move the cursor leftward/rightward in the 
entered text.