Hytera RD98X series User manual

Preface
Thank you for purchasing Hytera RD98X series DMR digital repeater.
As a product built to the DMR standard, RD98X is endowed with
ergonomic design, reliable performance and comprehensive digi-
tal functions to deliver an advanced communication solution. With
RD98X, you can make use of digital advantages to top the competi-
tion!
To ensure you get maximum benet from the product, please read
this manual carefully before use.

Icon Information
The following icons are available through this manual:
Copyright Information
Hytera and HYT are trademarks or registered trademarks
of Hytera Communications Co., Ltd. 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,
modied, distributed, decompiled, or reverse-engineered in
any manner without the prior written consent of Hytera.
The AMBE+2TM voice coding technology embodied in this
product is protected by intellectual property rights including
patent rights, copyrights and trade secrets of Digital Voice
Systems, Inc.
This voice coding technology is licensed solely for use
within this product. The user of this technology is explicitly
prohibited from attempting to decompile, reverse engineer,
or disassemble the Object Code or in any other way convert
the Object Code into a human readable form.
U.S. Patent Nos. #6,912,495 B2, #6,199,037 B1,
#5,870,405, #5,826,222, #5,754,974, #5,701,390,
#5,715,365, #5,649,050, #5,630,011, #5,581,656,
#5,517,511, #5,491,772, #5,247,579, #5,226,084 and
#5,195,166.
Indicates functions or parts that are not supported
by the current version of the repeater, but will be
available to future versions.
Caution: indicates situations that could cause
damage to your repeater or bodily injury.
Note: indicates tips that can help you make better
use of your repeater.

Disclaimer
H y t e r a e n d e a v o r s t o a c h i e v e t h e a c c u r a c y a n d
completeness of this manual, but no warranty of accuracy
or reliability is given. All the specications and designs are
subject to change without prior notice due to continuous
technology development. No part of this manual may be
copied, modied, 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 us at: http://www.hytera.cn.
RF Energy Exposure Compliance
Your radio is designed and tested to comply with a number
of national and international standards and guidelines
(listed below) regarding human exposure to radio frequency
electromagnetic energy. This radio complies with the IEEE
and ICNIRP exposure limits for occupational/controlled
RF exposure environment at operating duty factors of
up to 50% transmitting and is authorized by the FCC for
occupational use only. In terms of measuring RF energy for
compliance with the FCC exposure guidelines, your radio
radiates measurable RF energy only while it is transmitting
(during talking), not when it is receiving (listening) or in
standby mode.
Your radio complies with the following of RF energy
exposure standards and guidelines
United States Federal Communications Commission,
Code of Federal Regulations; 47CFR part 2 sub-part J
American National Standards Institute (ANSI)/Institute of
Electrical and Electronic Engineers (IEEE) C95. 1-1992
Institute of Electrical and Electronic Engineers (IEEE)
C95. 1-1999 Edition
International Commission on Non-Ionizing Radiation
Protection (ICNIRP) 1998
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.
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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:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and
receiver.
Connect the equipment into an outlet on a circuit
different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV
technician for help.
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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.

Checking Items in the Package ---------------- 1
Repeater Overview-------------------------------- 2
Front Panel ------------------------------------------ 2
Rear Panel------------------------------------------- 2
Internal Parts ---------------------------------------- 3
Installation ------------------------------------------- 3
Installation Overview ------------------------------ 3
Before Installation---------------------------------- 4
Installation Requirements ------------------------ 4
Installation Steps ----------------------------------- 6
Electrical Connections---------------------------- 8
Power Supply Connections---------------------- 8
RF Antenna Connections ------------------------ 9
Post-Installation Checklist ----------------------- 10
Status Indications---------------------------------- 10
LCD Icons-------------------------------------------- 10
LED Indicator---------------------------------------- 11
Basic Operations----------------------------------- 12
Turning the Repeater On/Off -------------------- 12
Adjusting the Volume------------------------------ 12
Adjusting Power Level ---------------------------- 12
Backlight---------------------------------------------- 12
Locking/Unlocking the Front Panel ------------ 12
Menu Navigation ----------------------------------- 13
Radio Info -------------------------------------------- 13
Channel Info----------------------------------------- 13
Exit----------------------------------------------------- 13
Alarm Information---------------------------------- 14
Over Temperature Alarm ------------------------- 14
Fan Failure Alarm ---------------------------------- 14
VSWR Alarm ---------------------------------------- 15
Low Forward Power Alarm----------------------- 16
Over/Low Voltage Alarm-------------------------- 16
Troubleshooting ------------------------------------ 18
Care and Cleaning -------------------------------- 29
Optional Accessories ----------------------------- 20
Contents

1
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.
Owner’s Manual
Repeater Duplexer Installation Kit Power Cord

2
Repeater Overview
Rear Panel
No. Part Name No. Part Name
1 Analog Mode Indicator 2 Slot 2 RX Indicator
3 Slot 2 TX Indicator 4 Digital Mode Indicator
5 Slot 1 TX Indicator 6 Slot 1 RX Indicator
7 Alarm Indicator 8 LCD Display
9 Channel Up Key * 10 Volume Control Knob /
Power Indicator
11 Accessory Jack 12 Repeater Mode Indicator
13 Programmable Keys * 14 Menu Navigation Knob
15 Channel Down Key * 16 Speaker
No. Part Name No. Part Name
1 TX Antenna Connector 2 Optional Connector 1
3 RX/Duplex Antenna 4 Optional Connector 2
Connector
5 Monitor/Test Jack 6 Accessory Jack
7 DC Power Inlet 8 Ethernet Port *
9 Ground Screw
Front Panel

3
Repeater Overview
Internal Parts
Installation
Proper installation can ensure optimum performance and
reliability of the repeater. Be sure to read the following
installation requirements and instructions carefully, before
you install the repeater.
Installation Overview
The information below is an overview for installing the
repeater and auxiliary equipment.
Unpack and inspect the equipment.
Perform a pre-installation function check test of the
equipment, and congure parameters.
Pay particular attention to environmental conditions at
the site, ventilation requirements, and grounding and
lightning protection.
Install the equipment at the site.
Make necessary electrical and cabling connections,
including the following:
-DC power cord
-Coaxial cables to TX and RX antennas (if you use two
antennas)
Perform a post-installation function check test of the
equipment, to verify proper installation.
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No. Part Name No. Part Name
1 Baseband Module 2 Front Panel
3 RF PA Module 4 Excitor Module
5 RX Module

4
Before Installation
Before you install the repeater at the site, you are
suggested to power on the repeater and check it for
proper operation.
1. Applying Power
Before applying power to the repeater, make sure the
voltage of DC power supply or battery is compliant with
the operating voltage range of the repeater. Then connect
the DC power supply or battery to supply power to the
repeater.
2. Verifying Proper Operation
Operation of the repeater can be indicated by the 8
LEDs located on the front panel. After proper operation is
veried, you can congure parameters for the repeater.
3. Conguring Parameters
You may customize repeater parameters such as TX/RX
frequency, TX power and signalling, according to user
needs. After conguration of parameters is complete, you
may perform site installation.
Installation
Caution: Some repeater components can become
extremely hot during operation. Turn off all power
and wait until the repeater is sufficiently cool before
touching the repeater.
Installation Requirements
1. Environmental Conditions at Intended Installation
Site
The repeater may be installed in any location suitable for
electronic communication equipment, provided that the
environmental conditions do not exceed the equipment
specications for temperature, humidity and air quality.
Operating Temperature
-30℃to +60℃
This is the temperature measured in close proximity to
the repeater. For example, if the repeater is mounted in a
cabinet, the temperature within the cabinet is measured.
Humidity
Humidity conditions should not exceed 95% relative
humidity @ 50°C.
Air Quality
For equipment operating in an area which is
environmentally controlled and with the repeater rack
mounted, the airborne particle level must not exceed
25μg/m3.
And for equipment operating in an area which is not
environmentally controlled and with the repeater cabinet
mounted, the airborne particle level must not exceed
90μg/m3.
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3. Equipment Installation Methods
The this repeater may be mounted in a rack, bracket or
cabinet, and may be placed on your desk.
4. Site Grounding and Lightning Protection
The ground and lightning protection system is one of
the most important considerations when designing a
communication site. Proper grounding techniques and
lightning protection are closely related, and the general
category of site grounding may be divided into the
following two sections:
Electrical Ground
Ground wires carrying electrical current from circuitry
or equipment at the site are included in the category of
electrical ground. Examples include the AC and DC power
used to source equipment located at the site, and wires or
cables connected to alarms or sensors located at the site.
Lightning Ground
Providing adequate lightning protection is critical to a safe
reliable communication site. The repeater is equipped
with a ground screw located on the rear panel. This screw
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Caution: Proper site grounding and lightning
protection are vitally important considerations.
Failure to provide proper lightning protection may
result in permanent damage to the repeater.
Caution: If the repeater is to be installed in an area
which is usually dusty, dirty, or does not meet the air
quality requirements, then the air used to cool the
repeater modules must be treated using appropriate
filtering devices. Dust or dirt accumulated on the
internal circuit boards and modules is not easily
removed, and can cause malfunctions such as
overheating and intermittent electrical connections.
2. Equipment Ventilation
The PA heatsink is equipped with a cooling fan used to
provide forced convection cooling. When planning the
installation, observe the following ventilation guidelines:
Customer supplied cabinets must be equipped with
ventilation slots or openings for air to enter and exit.
If several repeaters are installed in a single cabinet,
ensure ventilation openings surrounding each repeater
allow for adequate cooling.
All cabinets must have at least 10cm of open space
between the air vents and any wall or other objects.
When multiple cabinets (each equipped with several
repeaters) are installed in an enclosed area, ensure
appropriate ventilation and consider air conditioning
or other climate control equipment, to satisfy the
temperature requirements stated above.
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Installation

6
2. Install the optional duplexer and the bracket. Be
sure to observe the specications of the two antenna
connectors on the duplexer, to determine which
connector should be connected to the transmitter.
Ensure the antenna connector connected to the
transmitter is beside the rear panel of the repeater.
Take Hytera supplied duplexer as an example. If the
transmitter is connected to the low cavity connector,
the duplexer should be mounted with the front side
facing upwards (see the following gure on the left);
and if it is connected to the high cavity connector, the
duplexer should be mounted with the front side facing
downwards (see the following gure on the right).
Installation
Caution: Be sure to observe proper electrostatic
discharge precautions if any part must be removed
from the repeater.
is used to connect the repeater to the site grounding. All
antenna cables, and AC and DC power cords, should be
properly grounded and lightning protected by following the
rules and guidelines provided in the above sections.
Installation Steps
You will need a Philips screwdriver (cross head
screwdriver), a Torx (T10) screwdriver and a spanner, to
install the repeater.
The installation steps are as follows:
1. Mount the repeater in a rack, bracket or cabinet.
2. Connect accessories such as antenna cables and
power cords to the repeater.
If a duplexer needs to be mounted
If the repeater needs to work with a duplexer, your will
need to implement the following installation steps prior to
the above steps 1 and 2.
1. Loosen the three screws on the bracket with a Philips
screwdriver.

7
3. Loosen the screw at the back of the top cover, and
then pull the top cover to remove it.
4. Loosen the 6 screws locking the PA heatsink, remove
all power, data and RF cables from the PA, and nally
remove the PA heatsink.
TX signal:
Excitor module -> PA module -> Duplexer TX connector
-> Duplexer antenna connector -> RX/duplex antenna
connector (rear panel)
RX signal:
RX/duplex antenna connector (rear panel) -> Duplexer
antenna connector -> Duplexer RX connector -> RX
module
Diagrams of Assembled Unit
Note: Ensure RF cables are properly connected
between the duplexer and RF connectors.
Duplexer Mounted with Front Side Facing Upwards
Installation
5. Mount the duplexer, and fasten the 2 screws inside
the housing and on the side panel respectively. Then
mount the PA heatsink, and connect all the lines and
cables.

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Duplexer Mounted with Front Side Facing Downwards
Installation Electrical Connections
After the repeater has been mechanically installed,
electrical connections must be made. This involves making
the following connections:
DC power cord
Antenna cables
See the rear panel view for the positions of connectors.
Power Supply Connections
1. Ground Connection
The repeater is equipped with a ground screw located on
the rear panel. Connect ground wires to the screw.
2. DC Power Supply or Battery Backup Connection
The repeater may be connected to a regulated DC power
supply or a backup battery.
The DC source or battery backup system is connected to
the repeater through the DC power inlet at the rear of the
repeater (see rear panel view).
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RF Antenna Connections
TX and RX antennas are connected to two separate
connectors (shown in the rear panel view), and there
must be adequate isolation of 75 dB UHF or 85 dB VHF
between them. If only one antenna through a duplexer
is connected, at least 75 dB UHF or 85 dB VHF isolation
between the TX and RX antenna ports is required.
Caution: Please ensure that all power is switched off
before disconnecting the TX antenna.
Caution:
1.Before you make the connection, ensure the DC
power supply or battery backup system is capable of
supplying a minimum of 200W, and check if the DC
power supply has current limit. Since high current
consumption is required for transmitting, improper
setting of the current limit may cause transmission
failure.
2.The repeater is to be connected to a battery
that is in accordance with applicable electrical
regulations for the end use country. If battery power
is exhausted, you are recommended to charge the
battery with an external charger. Remove the battery
from the repeater when charging.
Caution: It is important that all antenna cables are
grounded at the point they enter the building. All
aspects of the antenna design must comply with the
relevant local regulations.
Electrical Connections
1. Duplexer Selection
The selection of duplexer is critical to system performance.
The use of a notch (band reject) duplexer is possible in
some systems that are not located at high RF density
sites. If the repeater is used in high RF density sites, the
use of a pass-notch duplexer is recommended.
The duplexer must be able to handle at least 50W
continuously. For the best system performance, the
insertion loss should be less than 2dB.
2. Antenna Selection
The selection of antenna is also critical to system
performance. The selected antenna must be 50 Ohm
impedance and capable of at least 50W. High gain
antennas may be used to increase system coverage.
Please take note of licensing restrictions when selecting
high gain antennas. Some services or regions may have
antenna gain or system radiation limitations.
The antenna must be connected to the duplexer with
a high grade 50 Ohm transmission line (e.g. Andrew
HELIAX cables). The line must have connectors to match
the connectors on the duplexer and antenna.

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Post-Installation Checklist
After the repeater has been mechanically installed and all
electrical connections have been made, power may now
be applied and the repeater should be checked for proper
operation.
1. Applying Power
Before applying power to the repeater, make sure all
boards are securely seated in the appropriate connectors
on the rear panel and all RF cables are securely
connected.
Turn on the DC power source to supply power to the
repeater.
2. Verifying Proper Operation
Operation of the repeater can be indicated by the 8 LEDs
located on the front panel and also by LCD prompts.
Caution: Some repeater components can become
extremely hot during operation. Turn off all power
and wait until the repeater is sufficiently cool before
touching the repeater.
Status Indications
LCD Icons
The LCD of your repeater displays the repeater status and
menu items. The following are the icons that appear on
the display.
Standby Screen
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Status Icons
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Icon Name Icon Repeater Status
Transmit Low TX power for the current channel
Power Icons High TX power for the current channel
状态图标（发射功率级别 ）
中转模式
信道别名（由经销商编程设定 ）
Status Icon (TX Power )
Repeater Mode
Channel Alias (programmable
by dealer)

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LED Indicator Repeater Status
Power Indicator
glows green
Repeater being turned on
Alarm Indicator glows
red
Repeater giving an alarm due to
failure of some component (please
observe the LCD prompt, and carry
out troubleshooting as the “Alarm
Information” section instructed.)
Repeater Mode
Indicator glows green
Repeater operating in Repeater
Mode (RM)
Repeater Mode
Indicator is not lit
Repeater operating in Repeater
Base Mode (RBM)
Slot 1 TX Indicator
glows red
Repeater transmitting (analog)
/ repeater transmitting on slot 1
(digital)
Slot 1 TX Indicator
ashes red
Busy channel lockout * /
transmission time-out *
Slot 2 TX Indicator
glows red
Repeater transmitting on slot 2
(digital)
Slot 2 TX Indicator
ashes red
Busy channel lockout * /
transmission time-out *
LED Indicator
Status Indications
Slot 1 RX Indicator
glows green
Repeater receiving (analog) /
repeater receiving on slot 1 (digital)
Slot 1 RX Indicator
ashes green
Monitoring *
Slot 2 RX Indicator
glows green
Repeater receiving on slot 2
(digital)
Analog Mode
Indicator glows yellow
Repeater operating in analog
mode
Digital Mode Indicator
glows blue
Repeater operating in digital mode

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Note: When an alarm indication occurs, the backlight
will remain illuminated until the alarm disappears.
Then it will recover the initial operation mode.
Locking/Unlocking the Front Panel
Your dealer may lock all the front panel keys and knobs, to
prevent accidental operation.
Note: To unlock the front panel, the repeater must
be re-programmed by your dealer.
Basic Operations
Turning the Repeater On/Off
Connect the repeater to a DC source to turn the repeater
on. At this time, the Power Indicator glows green and the
repeater shows the power-up screen.
To turn the repeater off, disconnect it from the DC source.
Adjusting the Volume
When the repeater operates in analog mode, rotate the
Volume Control knob clockwise to increase the volume
of speaker output audio, or counter-clockwise to decrease
the volume.
When the repeater operates in digital mode, the speaker
cannot output audio, and no volume adjustment through
the knob is available.
Adjusting Power Level
You may request your dealer to set the TX power to high
or low.
The LCD displays icon for high power, and icon
for low power. High power can optimize coverage of the
repeater, to communicate with farther terminals.
Backlight
In insufcient light conditions, activating the backlight can
illuminate the LCD and all the front panel keys, facilitating
user operation.
You dealer may set the backlight to operate in any of the
following modes:
Timed: any key or knob operation or receiving/
transmitting of signals can illuminate the backlight.
If none of the above operations is made within
the specified time period, the backlight will go out
automatically.
Enable: Since the repeater is powered on, the
backlight will remain illuminated all the time.
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Menu Navigation
Under this menu, you can view the basic information
of your repeater, including serial number, radio model,
frequency range, rmware version and etc.
To access this menu:
1. In the home screen, press the Menu Navigation knob
to enter the main menu.
2. Rotate the knob to select the "Radio Info” option.
3. Press the knob again to view basic information of the
repeater.
Then you may rotate the knob to scroll up/down. To exit,
just press the knob.
Radio Info
Under this menu, you can view some information of the
current channel, including channel alias, TX/RX frequency,
channel spacing (analog only), TX/RX CTCSS/CDCSS
(analog only), color code (digital only) and etc.
To access this menu:
1. In the home screen, press the Menu Navigation knob
to enter the main menu.
2. Rotate the knob to select the "Channel Info” option.
3. Press the knob again to view information of the current
channel.
Then you may rotate the knob to scroll up/down. To exit,
just press the knob.
Exit
To exit from the main menu, rotate the Menu Navigation
knob to select the "Exit” option, and then press the knob.
Channel Info

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Alarm Information
The repeater can automatically detect its operation status
in real time, such as PA over-temperature, low forward
power, high VSWR, high/low voltage and fan failure. When
any of the above occurs, the LCD will give you a prompt,
and the Alarm Indicator will glow red.
Over Temperature Alarm
When temperature of the PA module exceeds the normal
range, the Alarm Indicator will glow red and the LCD will
display the prompt below:
Then the repeater will disallow transmission, and you will
need to:
1. Check if the surface temperature of PA heatsink
exceeds 80℃. If yes, implement the following steps 2
and 3 to locate the failure.
Caution: The PA heatsink can become extremely
hot at this moment, so DO NOT touch the repeater.
Use a digital thermometer with thermocouple to
measure temperature.
2. Check if ambient temperature and equipment ventilation
can satisfy the foregoing site installation requirements.
If not, please improve environmental conditions at the
site as soon as possible, by mounting air conditioning
equipment or improving equipment ventilation.
3. Check if connection between the transmitter and RF or
antenna cables is loose or lost. If yes, please secure
the connection or replace the cables. Poor connection
between them could result in very high TX power and
thus high temperature of PA heatsink.
4. If you are unable to verify the above conditions, please
contact your local dealer for technical support.
When temperature of the repeater drops into the normal
operating range, the LCD prompt will disappear, and the
Alarm Indicator will go out.
Fan Failure Alarm
When the fan fails to work, the Alarm Indicator will glow
red and the LCD will display the prompt below:

15
Alarm Information
Then the repeater will automatically switch to low TX
power, to protect the transmitter from overheating.
You will need to:
1. Check if the fan is blocked by any solid object. If yes,
please remove it.
2. If you cannot solve the issue, please contact your local
dealer for technical support.
When the fan recovers normal operation, the LCD prompt
will disappear, and the Alarm Indicator will go out.
VSWR Alarm
High VSWR (voltage standing wave ratio) at the TX
antenna connector will result in damage to the PA, and
even failure of the transmitter.
When the VSWR exceeds the normal range, the Alarm
Indicator will glow red and the LCD will display the prompt
below:
Then the repeater will automatically switch to low TX
power.
You will need to:
1. Check if the TX frequency is within the frequency
range of the antenna. If not, please contact your local
dealer to replace the antenna. Improper antenna
selection could result in poor transmitting performance,
and even damage to the transmitter.
2. Check if connection between the transmitter and RF or
antenna cables is loose or lost. If yes, please secure
the connection or replace the cables.
3. If you cannot solve the issue, please contact your local
dealer for technical support.
When the VSWR falls within the normal range, the LCD
prompt will disappear, and the Alarm Indicator will go out.