Hytera MD785 User manual

811MD78000600
H05658 D03207
2015
深圳 市 南山 区 北环 大 道9108号
Hytera Communications Corporation Limited.
Hytera Communications Corporation Limited.
是海能达通信股份有限公司的注册商标或商标
2015 海能达 通 信股份 有 限公司 。 版权所 有
MD785/G
Digital Mobile Radio
OWNERS MANUAL

Preface
Thanks for your favor in our product. This manual is helpful for you to quickly know how to use the product. For
detailed features and operations, please refer to the Feature Description and Operation Manual along with the
product.
To avoid body injury or property loss caused by misoperation, please read the Safety Information Booklet
carefully before use.
This manual is applicable to the following product:
MD78X/ MD78XG Digital Mobile Radio (X may represent 2, 5, 6 or 8)
English

2
Icon Conventions
Indicates functions that are available on digital
channel only.
Indicates functions that are available on analog
channel only.
Functions marked with no icon are available on both
analog and digital channels.
Disclaimer
Hytera Communications Corporation Limited (the
Company) 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 us.
We do not guarantee, for any particular purpose, the
accuracy, validity, timeliness, legitimacy or completeness
of the Third Party products and contents involved in this
manual.
If you have any suggestions or would like to learn more
details, please visit our website at: http://www.hytera.
com.
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 Prole
Radio Frequency (RF) is a frequency of electromagnetic
radiation in the range at which radio signals are
transmitted. RF technology is widely used in
communication, medicine, food processing and other
elds. 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
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;
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 operational instructions, so as to enhance their
occupational health against exposure to RF energy.
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 not more than 50% of the time and
always adhere to the following procedures:
●Antenna gain must not exceed 5dBi for UHF or
3.5dBi for VHF.
●The antenna installation must comply with the
requirements of manufacturer or supplier, and it
must be at least one meter away from human body.
EU Regulatory Conformance
As certied by the qualied 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.

1
Contents
Items in the Package-------------------------------------------------------------2
Product Overview -----------------------------------------------------------------2
Front Panel----------------------------------------------------------------------------------- 2
Rear Panel ----------------------------------------------------------------------------------- 2
Programmable Keys -----------------------------------------------------------------------3
LCD Icon-------------------------------------------------------------------------------------- 3
LED Indicator -------------------------------------------------------------------------------- 4
Installation---------------------------------------------------------------------------4
Instructions -----------------------------------------------------------------------------------4
Installation Tools ---------------------------------------------------------------------------4
Installation Part------------------------------------------------------------------------------4
Installation Procedure --------------------------------------------------------------------- 5
Basic Operations------------------------------------------------------------------5
Turning the Radio On/Off -----------------------------------------------------------------5
Adjusting the Volume ----------------------------------------------------------------------5
Selecting a Zone---------------------------------------------------------------------------- 5
Selecting a Channel ----------------------------------------------------------------------- 5
Inputting via Keypad ----------------------------------------------------------------------- 5
Managing the Contact --------------------------------------------------------------------- 5
Call Services------------------------------------------------------------------------6
Private Call -----------------------------------------------------------------------------6
Group Call ------------------------------------------------------------------------------7
Call on Analog Channel (Without Signaling) ----------------------------------7
Emergency Call ----------------------------------------------------------------------------- 7
Message Services -----------------------------------------------------------7
Available Features ----------------------------------------------------------------8
Troubleshooting -------------------------------------------------------------------9
Care and Cleaning ----------------------------------------------------------------10
Optional Accessories------------------------------------------------------------10

2
Power Cord Documentation Kit
Radio Palm Microphone Microphone Hanger and Screws
Mounting Bracket Kit Fuse GPS Antenna
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.
Note:
The GPS antenna is the standard accessory for the MD78XG mobile radios. The descriptions
related to the GPS feature in this manual are applicable to MD78XG mobile radios only. The
frequency band is marked on the label of antenna; if not, please refer to the label on the radio for
frequency band information.
Product Overview
Front Panel
No. Part Name No. Part Name
1Volume Control/
Channel Selector Knob 7 Up Key
2 LED Indicator 8 Down Key
3 LCD Display 9 Speaker
4 OK/Menu Key 10 Programmable Keys
5 Back Key 11 Microphone Connector
6 Power On/Off Key 12 Microphone Installation
Index
Rear Panel

3
No. Part Name No. Part Name
1
RF Antenna
Connector (BNC
female)
3 Accessory connector
2 Power Inlet 4
GPS Antenna
Connector (SMA
female)
Note: The GPS antenna connector is
available for MD78XG mobile radios
only.
Programmable Keys
For enhanced convenience, you may request your dealer
to program the TK ( ), P1, P2, P3, P4, P5 ( )
and P6 ( ) as shortcuts to certain functions. Please
refer to the Feature Description and Operation Manual
along with the product for more details.
Caution: The TK key is programmed
with emergency feature by default
(short press: Emergency On; long press:
Emergency Off). It is programmable
by your dealer. Short press of P5 is
programmed with Contact List feature
and short press of P6 is programmed
with Home Screen feature.
LCD Icon
Icon Name Radio Status
DTMF Keypad
Icon
The DTMF keypad is
active.
GPS Icon
The GPS feature is
active, and valid GPS
data is received.
The GPS feature is
active, but no valid
GPS data is received.
Icon Name Radio Status
TX Power Icon
Low TX power for the
current channel.
High TX power for the
current channel.
Work Order
Icon
One or more new work
orders are received.
DM
Operation
Mode Icon
Direct Mode: Under
this mode, radios
communicate with
each other directly.
RM
Repeater Mode:
Under this mode,
radios communicate
with each other via a
repeater.
Monitor Icon The Monitor feature is
active.
Emergency
Icon
The radio is in
emergency state
(except for silent
emergency type) or
an emergency call is
received.
Roam Icon The radio is roaming.
Scrambler/
Encrypt Icon
The Scrambler/
Encrypt feature is
active.
Scan Icon
The radio is scanning.
The radio stays on a
non-priority channel.
The radio stays on
priority channel 1.
The radio stays on
priority channel 2.
VOX Icon The VOX feature is
active.
Icon Name Radio Status
Missed Call
Icon Missed call(s).
Message Icon
New message/unread
message.
Inbox is full.
RSSI Icon
More bars indicate
stronger signal
strength.
Knob
Operation
Mode Icon
The knob is used for
selecting channel
currently.
The knob is used
for adjusting volume
currently.
LQO Icon The LQO feature is
active.
Call/Contact
Icon
●Indicates a
private call in
progress.
●Indicates a
private contact
in the contact
list.
●Indicates a
group call in
progress.
●Indicates a
group contact in
the contact list.
●Indicates an all
call in progress.
●Indicates an all
call contact in
the contact list.

4
LED Indicator
LED Indication Radio Status
The LED indicator
ashes green. Powering on
The LED indicator glows
red. Transmitting
The LED indicator glows
green. Receiving
The LED indicator
ashes orange slowly. Scanning or Roaming
The LED indicator
ashes orange rapidly. Emergency
The LED indicator glows
orange.
Call hung period.
No voice is being
transmitted or received
on the traffic channel
during a call. Within
such period, you can
hold down the PTT key
to talk to the other party.
Note: Unless otherwise specified, the
PTT key mentioned in this manual
indicates that of the palm microphone.
Installation
Instructions
Before you install the radio in a vehicle, be sure to read
the following instructions carefully:
●The radio must work with a13.6V ± 15% negative
ground electrical system only. Ensure to check the
ground polarity and voltage of the vehicle power
supply prior to installation.
●Install the radio in a location where you can reach
the front panel conveniently.
●Check how long the screws will extend from the
bottom surface of the radio before installation. Drill
the mounting hole cautiously to avoid damage to
the vehicle wiring and other parts.
●Install the radio with mounting bracket supplied by
the Company, to avoid radio looseness in case of
accidents. The loose radio may cause bodily injury.
●Connect the antenna and power cord to the radio
before you install it in the bracket. And make sure
the antenna and power cord are dedicated for
digital radios of the Company.
●Keep sufcient clearance at the back of the radio
for wiring.
●Be sure to use the fuse with the same specication
for DC power cord upon replacement.
●If there are any other device in the vicinity of this
radio, the distance between the antenna of this
radio and the antenna of such RF device shall be
no less than 10 meters.
Installation Tools
●Electric Drill
●Cross head screwdriver
●Hex socket sleeve (for 4.8 * 20mm self-tapping
screws)
Installation Part
No. Part Name No. Part Name
1 Radio 8 Power Inlet
2 Locking Knobs 9 Power Cord
(black)
3 Mounting Bracket 10 Power Cord
(red)
44.8 * 20mm Self-
tapping Screws 11 Fuse
5 Palm Microphone 12 RF Antenna
Connector
64 * 16mm Self-
tapping Screws 13 GPS Antenna Connector
7Microphone
Hanger / /

5
Installation Procedure
1. Install the bracket in a location where you can
operate the radio conveniently.
2. Connect accessories such as the antenna and
power cord to the radio.
3. Slide the radio into the properly mounted bracket
and secure it using the locking knobs.
4. Install the microphone hanger in a location where
it can be reached easily.
5. Plug the palm microphone into the radio, but at
rst align the triangle index on the palm microphone
with the microphone installation index. Place the
palm microphone on the hanger when you do not
use it.
Basic Operations
Turning the Radio On/Off
P1
P2 P3 P4
ON长 按
OFF短 按
Adjusting the Volume
You can press the Volume Control/Channel Selector
Knob to switch it to volume adjustment mode (the icon
appears) and rotate the knob to adjust the volume.
P1
P2 P3 P4
P1 P2 P3 P4
P1 P2 P3 P4
Selecting a Zone
A zone is a group of channels with the same property,
which can facilitate convenient management over the
channels. The radio supports 64 zones, each of which
consists of up to 16 channels. Your dealer can program
the zone for your specic needs. You can select a zone
through any of the following ways:
●Menu: Go to “Menu -> Zone”, press the Up/Down
key to select an appropriate zone, and then press
the OK key to switch to the selected zone.
●Shortcut key: You can toggle to the appropriate
zone by pressing the programmed Zone Up or
Zone Down key preset by your dealer.
Selecting a Channel
You can press the Volume Control/Channel Selector
Knob to switch it to channel selection mode (the
icon appears) and rotate the knob to select an
appropriate channel. You can also switch to the preset
channel by pressing the programmed Preset Channel
key preset by your dealer.
If the Channel Notify feature is enabled by your dealer,
the radio will announce the channel number upon
channel switching.
P1 P2 P3 P4
P1 P2 P3 P4
P1 P2 P3 P4
Inputting via Keypad
You can input alias, call numbers and messages using
a palm microphone with keypad (optional accessory). In
the editing mode, you may do as follows:
●Press to switch the text input methods
between alphabetic mode and numeric mode
●In the alphabetic mode, press to input the
special characters. But in the numeric mode,
pressing will input the numeric digit 1
●In the alphabetic mode, press to input the
space. But in the numeric mode, pressing will
input the special characters
Note: Unless otherwise specified, the
keypad mentioned in this manual
indicates that of the palm microphone
with keypad.
Managing the Contact
Contact management allows you to view, edit, delete or
add contacts.
Long press Power On/Off key
to turn the radio on and off.

6
Contact List
The contact list is used to save private call contact,
group call contact, and all call contact information such
as call alias, call type and call ID.
●Go to the “Menu -> Contact -> Contact List” menu
to access the contact list.
●Press the programmed Contact List key to access
the contact list.
In the “Contact List” menu, you can view, edit or delete
the private contact. You can send to a private call contact
the following commands: Alert Call, Radio Check,
Remote Monitor, Radio Enable or Radio Disable. Please
refer to the Feature Description and Operation Manual
along with the product for details.
Favorite Contact
Favorite Contact is used to save the frequently used
contacts.
●Go to the “Menu -> Contact -> Favorite Contact”
menu to access the favorite contact list.
●Press the programmed Favorite Contact List key
to access the favorite contact list.
In the favorite contact list, you can view, edit or delete the
favorite contacts. You can send to a favorite contact the
following commands: Alert Call, Radio Check, Remote
Monitor, Radio Enable or Radio Disable. Please refer
to the Feature Description and Operation Manual along
with the product for details.
New Contact
New Contact is used to add a new contact to the contact
list.
Go to the “Menu -> Contact -> New Contact” menu to
access the relevant screen. Input the number and alias
of a new contact and save it to the private contact list.
Note：
●The number and alias of a new
contact must be unique.
●You can also save the numbers from
the Call Logs into the contact list.
Call Services
After the radio is powered on, you can make and receive
calls. To ensure optimal volume of the receiving radio,
keep the microphone about 2.5 to 5 centimeters away
from your mouth when transmitting.
2.5~ 5.0CM
Private Call
Initiating a Private Call
When you initiate a private call, the radio will display the
icon . You can make a private call through any of the
following ways:
Preset Contact
In the home screen, hold down the PTT key to initiate a
private call to the private contact preset for the current
channel.
You may request your dealer to preset a regular private
contact for each digital channel.
Contact List
Step 1 Go to “Menu -> Contact -> Contact List”.
Step 2 Use the Up/Down key to select an appropriate
contact.
Step 3 Hold down the PTT key to initiate a private call.
Call Logs
Step 1 Go to “Menu -> Call Logs -> Outgoing/Incoming/
Missed”.
Step 2 Use the Up/Down key to select an appropriate
contact.
Step 3 Hold down the PTT key to initiate a private call.
Manual Dial
Step 1 Go to “Menu -> Contact -> Manual Dial”.
Step 2 Input the private call number using the numeric
keypad.
Step 3 Hold down the PTT key to initiate a private call.
Note：
●If both the Private Call Manual
Dial and Group Call Manual Dial
are available, you can press
to switch between the two dialing
methods, and the radio will display
the call type (Private ID/ Group ID).
●If the Default Numeric Key Selection
feature is enabled by your dealer,
you can enter a private call number
in the home screen, and then hold
down the PTT key to initiate a private
call. However, if the DTMF keypad
is enabled, the number entered in
the home screen is a phone number.
You can dial the private call number
through the “Manual Dial” menu
only.

7
Receiving and Responding to a Private
Call
When you receive a private call, the radio will display
the icon , then you can listen to it without any
operation. You can hold down the PTT key to call back
within the preset time. If you do not respond to it, the
radio will display appropriate indications.
Group Call
Initiating a Group Call
When you initiate a group call, the radio will display the
icon . You can make a group call through any of
the following ways. The operation is similar to initiating a
private call.
Preset Contact
In the home screen, hold down the PTT key to initiate a
group call to the group call contact preset for the current
channel.
Contact List
Step 1 Go to “Menu -> Contact -> Contact List”.
Step 2 Use the Up/Down key to select an appropriate
contact.
Step 3 Hold down the PTT key to initiate a group call.
Manual Dial
The operation is the same as initiating a private call.
Receiving and Responding to a Group
Call
When you receive a group call, the radio will display the
icon on the LCD. You can hold down the PTT key
to call back within the preset time.
Call on Analog Channel (Without
Signaling)
To transmit on an analog channel, hold down the PTT
and speak into the microphone. To receive, release the
PTT key.
Please refer to the Feature Description and Operation
Manual along with the product for operation description
on how to make and receive calls on the analog channel
with signaling.
Emergency Call
In case of emergency, you can use Emergency Call to
ask for help from your companion or the control center.
Emergency Call needs to be congured and enabled by
your dealer. Please refer to the Feature Description and
Operation Manual along with the product for details.
Message Services
Message Services allow you to edit and send a new
message, to directly send a quick text message and to
forward the messages saved in the InBox, OutBox and
Drafts.
Text Message
Step 1 Go to “Menu -> Message -> New Msg”to
enter the relevant screen.
Step 2 Type the text and press the OK key. You can
save the text message to Drafts, or send it to a
private contact or a group contact directly.
Step 3 Select the contact or input the contact number
manually.
Step 4 Press the OK key to send the message. When
the message is sent successfully, the radio will
display the prompt “Send Success!”.
Quick Text
Quick Text is the frequently used message preset by
your dealer. You can send the quick text directly or edit
this text before sending it.
InBox
The Inbox saves the received messages and marks each
message with a corresponding icon to indicate its status.
●: Read text message.
●: Unread text message.
When the InBox is full, the radio will display the icon
, and the earliest message will be overwritten by
the latest one automatically.
OutBox
The OutBox saves the sent messages and marks each
message with a corresponding icon to indicate its status.
●: The text message is sent successfully.
●: The text message is not sent successfully. In
this case, you can resend it.
When the OutBox is full, the earliest message will be
overwritten by the latest one automatically.
Drafts
The Drafts saves the edited messages. When the Drafts
is full, the earliest message will be overwritten by the
latest one automatically. After the message in the Drafts
is sent successfully, it will be removed from the Drafts
and be saved into the OutBox. If not sent successfully,
the message will be saved into the Drafts and the
OutBox.

8
Available Features
Available features of this radio are listed below. Please
refer to the Feature Description and Operation Manual
for detailed feature descriptions.
Feature
Type Detailed Feature
Basic
Setting
●Password
●Language
●Indication: Backlight,
Brightness, Tone
●Audio: Mic AGC, Treble Boost,
LQO
●Scanning: Scan On, Scan Off,
Scan List
●Managing the Contacts:
Contact List, Favorites, New
Contact
●Other Features: Device
Information, Power Level,
VOX, One Touch Call,
Renting, Programming, User
Assignment ID
Feature
Type Detailed Feature
Digital
Features
●Voice Services: Group Call,
Private Call, All Call, Phone
Call
●Message Services: New Msg,
Quick Text, InBox, OutBox,
Drafts
●Control Services: Alert Call,
Radio Check, Remote Monitor,
Radio Enable, Radio Disable,
Priority Interrupt, Time-out
Timer (TOT)
●Personal Security Services:
Emergency Alarm, Lone
Worker, Horn & Lights
●Encrypt
●Network: Talk Around, Roam
●Other Features: Pseudo
Trunking
Analog
Features
●Voice Services: Call without
Signaling, Call with Signaling,
Phone Call
●Control Services: Compandor,
Time-out Timer (TOT), Monitor,
Squelch Off, Squelch Level
Adjustment, CTCSS/CDCSS
●Personal Security Services:
Emergency Alarm, Lone
Worker
●Scrambler
●Talk Around
Feature
Type Detailed Feature
Accessory-
related
Features
●Positioning Service: GPS On/
Off, Position View, GPS Msg,
Time Zone, Query Location
●Other Features: Ignition Sense,
Public Address, Emergency
Footswitch, Channel Steering
API
Features
●GPS Report
●Radio Registration Service
●Telemetry
●Work Order

9
Troubleshooting
Phenomena Analysis Solution
The radio cannot be
powered on. The power cord may be disconnected. Connect the power cord properly.
During receiving, the voice
is weak, discontinuous or
totally inactive.
The volume level may be low. Increase the volume by rotating the Volume Control Knob.
The antenna may get loose or may be improperly installed. Turn off the radio and reattach the antenna.
The speaker may be blocked or damaged. Clean the surface of the speaker.
You cannot communicate
with other members in
analog mode.
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.
You may be too far away from the group members. Move towards other members.
In digital mode, there’s RX
indication on the radio, you
cannot communicate with
other members.
The digital carrier may be received but may not be
demodulated due to inconsistent ID with that of other
members.
Sets the same ID of other members.
Irrelevant communication
or noise is heard on the
channel.
You may be interrupted by radios using the same frequency. Adjust the squelch level.
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.
The noise is too loud.
You may be too far away from other members. Move towards other members, and restart the radio to try again.
You may locate in 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 to try again.
You may suffer from external disturbance (such as
electromagnetic interference). Stay away from equipment that may cause interference.
You cannot use the keys. The keypad may fail to function temporarily. Restart the radio.
The LCD does not display
any information. The LCD may fail to function temporarily. Restart the radio.
The GPS cannot locate your
position.
The GPS antenna may be connected improperly. Properly connect the GPS antenna.
GPS signals may not be received due to unfavorable
position. Move to an open and at area to try again.
If the above solutions cannot x your problems, or you may have some other queries, please contact us or your local dealer for more technical support.

10
Care and Cleaning
To guarantee optimal performance as well as a long
service life of the product, please follow the tips below.
Product Care
●Do not pierce or scrape the product.
●Keep the product far away from substances that
can corrode the circuit.
●Do not hold the product by its antenna or earpiece
cable directly.
●Attach the accessory connector cover when the
accessory is not in use.
Product Cleaning
Caution: Power off the product and
disconnect the power supply before
cleaning.
●Clean up the dust and ne particles on the product
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 product is completely dry before use.
Optional Accessories
The following items are the main optional accessories
for the product, and please consult your local dealer for
more other accessories.
Caution: Use the accessories specified by
the Company only. If not, the Company
shall not be liable for any loss or damage
arising out of use of unauthorized
accessories.
Type Model Name
Power
Supply
PS16001 Power Supply of Base
Station Cabinet
PS22002
Power Supply for
Mobile Radio (220W,
Backup Power Supply
applicable)
Audio
Accessories
SM09D1 External Speaker
SM10A1 Desktop Microphone
SM19A1 Keypad Microphone
SM20A1 Telephone Style
Handset
SM20A2 Telephone Style
Handset with Keypad
Type Model Name
Cable
PC37
DB26-connector
Programming Cable
(USB port)
PC40 DB26-connector Data
Cable (USB port)
PC43
DB26-connector
Dispatching Cable
with USB Port&Dual
Audio Jack
PC46 Data Cable(COM
Port)
PC47 Programming Cable
(USB port)
PC48 Data Cable(COM
Port)(6 meters)
PC49
Back-to-back Data
Cable (DB26 to
DB26)
PC60 Ignition Cable for
Mobile Radio
PC71 Serial Device Server
Others
BRK15
Installation Accessory
for Rack-mounted
Power Supply (2U)
(Black)(Dual channel)
RCC04
Mobile Radio Remote
Mount Kit (3 meters)
(IP67)
RCC05
Mobile Radio Remote
Mount Kit (6 meters)
(IP67)
RCC06
Mobile Radio Remote
Mount Kit (3 meters)
(IP54)
RCC07
Mobile Radio Remote
Mount Kit (6 meters)
(IP54)
-Omni-directional
Antenna

Preface
Thanks for your favor in our product. This manual is helpful for you to quickly know how to use the product. For
detailed features and operations, please refer to the Feature Description and Operation Manual along with the
product.
To avoid body injury or property loss caused by misoperation, please read the Safety Information Booklet carefully
before use.
This manual is applicable to the following product:
MD78X/ MD78XG Digital Trunking Mobile Radio (X may represent 2, 5, 6 or 8)
Trunking English

2
Disclaimer
Hytera Communications Corporation Limited (the
Company) 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 us.
We do not guarantee, for any particular purpose, the
accuracy, validity, timeliness, legitimacy or completeness
of the Third Party products and contents involved in this
manual.
If you have any suggestions or would like to learn more
details, please visit our website at: http://www.hytera.
com.
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 Prole
Radio Frequency (RF) is a frequency of electromagnetic
radiation in the range at which radio signals are
transmitted. 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
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;
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 operational instructions, so as to enhance their
occupational health against exposure to RF energy.
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 not more than 50% of the time and
always adhere to the following procedures:
●Antenna gain must not exceed 5dBi for UHF or
3.5dBi for VHF.
●The antenna installation must comply with the
requirements of manufacturer or supplier, and it
must be at least one meter away from human body.
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.

1
Items in the Package-------------------------------------------------------------2
Product Overview -----------------------------------------------------------------2
Front Panel----------------------------------------------------------------------------------- 2
Rear Panel ----------------------------------------------------------------------------------- 3
Programmable Keys ----------------------------------------------------------------------- 3
LCD Icon-------------------------------------------------------------------------------------- 3
LED Indicator -------------------------------------------------------------------------------- 3
Installation---------------------------------------------------------------------------4
Instructions -----------------------------------------------------------------------------------4
Installation Tools ---------------------------------------------------------------------------4
Installation Parts ---------------------------------------------------------------------------- 4
Installation Procedure --------------------------------------------------------------------- 4
Basic Operations------------------------------------------------------------------5
Turning the Radio On/Off ----------------------------------------------------------------- 5
Initial Registration--------------------------------------------------------------------------- 5
Adjusting the Volume ----------------------------------------------------------------------5
Selecting a Subgroup --------------------------------------------------------------------- 5
Selecting a Group Contact -------------------------------------------------------------- 5
Inputting via Keypad ----------------------------------------------------------------------- 5
Managing the Contact --------------------------------------------------------------------- 5
Call Services------------------------------------------------------------------------6
Private Call ----------------------------------------------------------------------------------- 6
Group Call ------------------------------------------------------------------------------------ 7
Emergency Call ----------------------------------------------------------------------------- 8
Contents
Message Services-----------------------------------------------------------------8
Available Features ----------------------------------------------------------------9
Troubleshooting -------------------------------------------------------------------10
Care and Cleaning ----------------------------------------------------------------11
Optional Accessories------------------------------------------------------------11

2
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.
Note: The GPS antenna is the standard accessory for the MD78XG mobile radios. The descriptions
related to the GPS feature in this manual are applicable to MD78XG mobile radios only. The
frequency band is marked on the label of antenna; if not, please refer to the label on the radio for
frequency band information.
Power Cord Documentation Kit
Radio Keypad Microphone Microphone Hanger and Screws
Mounting Bracket Kit Fuse GPS Antenna
Product Overview
Front Panel
No. Part Name No. Part Name
1
Volume Control/
Group Call
Selector Knob
8 Up Key
2 LED Indicator 9 Down Key
3 LCD Display 10 Speaker
4 OK/Menu Key 11
Answer/
Redial/Call
Key
5
Back/Group Call
Management
Key
12 Programmable
Keys
6
BackDial/End/
Home Screen
Key
13 Microphone
Connector
7P o w e r O n/O f f
Key 14
Microphone
Installation
Index

3
Rear Panel
No. Part Name No. Part Name
1
RF Antenna
Connector
(BNC
female)
3Accessory
Connector
2 Power Inlet 4
GPS Antenna
Connector (SMA
female)
Programmable Keys
For enhanced convenience, you may request your
dealer to program the P1, P2, P3, P4, and TK ( ) as
shortcuts to certain functions. Please refer to the Feature
Description and Operation Manual along with the product
for more details.
Caution: The TK key is programmed
with emergency feature by default
(short press: Emergency On; long press:
Emergency Off). It is programmable by
your dealer.
LCD Icon
Icon Name Radio Status
GPS Icon
The GPS feature is active,
and valid GPS data is
received.
The GPS feature is active,
but no valid GPS data is
received.
TX Power
Icon
Low TX power for the current
channel.
High TX power for the current
channel.
TM
Operation
Mode
Icon
Trunking Mode: In this mode,
the radio communicates with
other radios via the trunking
system.
Roam
Icon The radio is roaming.
Hunt Icon
The radio is hunting. This
icon will not appear during
the Background Hunt,
HomeStation Hunt or Multi-
site Handover.
VOX Icon The VOX feature is active.
Message
Icon
New message/unread
message.
Inbox is full.
RSSI
Icon
No signal.
More bars indicate stronger
signal strength.
Knob
Operation
Mode
Icon
The knob is used for selecting
the group currently.
The knob is used for adjusting
the volume currently.
Speaker
Icon The speaker is unmuted.
LQO Icon The LQO feature is active.
Call/
Contact
Icon
●Indicates a private call
in progress.
●Indicates a private
contact in the contact
list.
●Indicates a group call
in progress.
●Indicates a group
contact in the contact
list.
●Indicates an all call in
progress.
●Indicates an all call
contact in the contact
list.
LED Indicator
LED Indication Radio Status
The LED indicator
flashes green. Powering on
The LED indicator
flashes green slowly. Standby
The LED indicator
glows green. Receiving
The LED indicator
glows red. Transmitting.
The LED indicator
flashes red.
Establishing a call (the LED
indicator on the calling radio
flashes).
The LED indicator
flashes orange rapidly.
Establishing a Full Off Air Call
Set-Up (FOACSU) (the LED
indicator on the called radio
flashes)
The LED indicator
flashes orange slowly. Hunting
The LED indicator
glows orange.
Call hung period. No voice is
being transmitted or received
on the traffic channel during a
call. Within such period, you
can hold down the PTT key to
talk to the other party.

4
Note: Unless otherwise specified, the
PTT key mentioned in this manual
indicates that of the palm microphone.
Installation
Instructions
Before you install the radio in a vehicle, be sure to read
the following instructions carefully:
●The radio must work with a13.6V ±15% negative
ground electrical system only. Ensure to check the
ground polarity and voltage of the vehicle power
supply prior to installation.
●Install the radio in a location where you can reach
the front panel conveniently.
●Check how long the screws will extend from the
bottom surface of the radio before installation. Drill
the mounting hole cautiously to avoid damage to
the vehicle wiring and other parts.
●Install the radio with mounting bracket supplied by
the Company, to avoid radio looseness in case of
accidents. The loose radio may cause bodily injury.
●Connect the antenna and power cord to the radio
before you install it in the bracket. And make sure
the antenna and power cord are dedicated for
digital radios of the Company.
●Keep sufficient clearance at the back of the radio
for wiring.
●Be sure to use the fuse with the same specification
for DC power cord upon replacement.
●If there are any other device in the vicinity of this
radio, the distance between the antenna of this
radio and the antenna of such RF device shall be
no less than 10 meters.
Installation Tools
●Electric Drill
●Cross head screwdriver
●Hex socket sleeve (for 4.8 * 20mm self-tapping
screws)
Installation Parts
No. Part Name No. Part Name
1 Radio 8 Power Inlet
2Locking
Knobs 9Power Cord (black)
3Mounting
Bracket 10 Power Cord (red)
7
6
4
2
12
1
11
10
9
8
13
5
3
No. Part Name No. Part Name
4
4.8 * 20mm
Self-tapping
Screws
11 Fuse
5Palm
Microphone 12 RF Antenna Connector
6
4 * 16mm
Self-tapping
Screws
13 GPS Antenna
Connector
7Microphone
Hanger / /
Installation Procedure
1. Install the bracket in a location where you can
operate the radio conveniently.
2. Connect accessories such as the antenna and
power cord to the radio.
3. Slide the radio into the properly mounted bracket
and secure it using the locking knobs.
4. Install the microphone hanger in a location where
it can be reached easily.
5. Plug the palm microphone connector into the
radio, but at rst align the triangle index on the palm
microphone with the microphone installation index.
Place the palm microphone on the hanger when
you do not use it.

5
Basic Operations
Turning the Radio On/Off
Initial Registration
Before the radio can make the communication normally,
it needs to register in the system. Once you turn on
the radio, it will start hunting the control channels
for available base station and attempt to make the
registration automatically.
Hunting the Control Channel
The radio starts hunting the control channel for available
base station automatically upon power-on. During
hunting, the radio displays “Registering, Please Wait!”
with the icon , and the LED indicator flashes orange
slowly.
There are two hunt plans: Fixed Control Channel and
Flexible Control Channel. You may request your dealer
to set the appropriate plan for your radio. Please refer
to the Feature Description and Operation Manual along
with the product for details.
Registering
When the radio searches for a control channel, the radio
determines whether the base station allows it to register.
P1
P2 P3 P4
ON长 按
OFF短 按
Long press Power On/Off key
to turn the radio on and off.
Upon successful registration, the radio will display
“Registered Successfully!”on the LCD. Then it is
ready for communication. If you want the radio to register
with another base station, press the programmed
Manual Current Hunt key to hunt again.
Note: For smooth registration, it is highly
recommended to put the frequently
used frequencies of base stations in the
control channel list via the dealer.
Adjusting the Volume
You can press the Volume Control/Group Call
Selector Knob to switch it to volume adjustment mode
(the icon appears in the upper left corner on the
LCD) and rotate the knob to adjust the volume.
P1
P2 P3 P4
P1 P2 P3 P4
P1 P2 P3 P4
Selecting a Subgroup
You can include the group contacts into a subgroup for
efficient management.
You can go to the menu “Subgroup”via the Menu or
Subgroup key, then use the Up/Down key to select your
wanted subgroup. Afterwards, select the option “Set
as Default”and press the OK key to switch to that
subgroup.
Selecting a Group Contact
After the radio is registered, you may select a group
call contact to initiate a group call through any of the
following methods:
●Knob
In the home screen, press the Volume Control/
Group Call Selector Knob to switch it to group
contact selection mode (the icon appears in
the upper left corner on the LCD) and rotate the
knob to select a group call contact.
●Menu
Go to the menu “Subgroup”via the Menu or
Subgroup key, then use the Up/Down key to
select an appropriate subgroup. Afterwards, select
“Member”and use the Up /Down key to select
an appropriate group contact.
Inputting via Keypad
You can input alias, call numbers and messages via the
keypad of palm microphone. In the editing mode, you
may do as follows.
●Press to switch the text input methods
between alphabetic mode and numeric mode
●In the alphabetic mode, press to input the
special characters. But in the numeric mode,
pressing will input the numeric digit 1
●In the alphabetic mode, press to input the
space. But in the numeric mode, pressing will
input the special characters
Managing the Contact
Contact management allows you to view, edit, delete or
add contacts.