Hytera RD988 U5 User Manual

Preface
Thanks for your favor in our product. To derive optimum performance from the product. To ensure you get
maximum benefit from the product, please read this manual carefully before use.
This manual is applicable to the following model:
RD98XS U(5) (X may indicate 0, 2, 5, 6 or 8)

Hytera RD988 U5 Specifications

General

Frequency Range	400-470 MHz
Operating Voltage	13.6 V DC
Channel Spacing	12.5/20/25 kHz
Operating Temperature	-30°C to +60°C
Cooling Method	Fan
Digital Protocol	DMR
Modulation	4FSK

Summary

Instructional Icons

Term Explanation

Duplexer

Definition of a device enabling bi-directional communication by isolating TX/RX signals.

Feed Line

Definition of the cable connecting the antenna to the radio transmitter or receiver.

Voltage Standing Wave Ratio (VSWR)

Definition of VSWR as a measure of impedance matching to a source.

Squelch

Definition of Squelch as a circuit function to suppress audio output without strong input.

Copyright Information

Disclaimer

RF Radiation Information

RF Radiation Profile

Explains Radio Frequency (RF) and its widespread use and potential for radiation.

RF Radiation Safety

Discusses standards development for safe RF exposure based on expert recommendations.

FCC Regulations

Compliance with RF Exposure Standards

Operational Instructions and Training Guidelines

Checking Items in the Package

Product Overview

Front Panel

Details the components and indicators on the front panel of the device.

Programmable Keys

Explains the function and customization options for the programmable keys.

Rear Panel

Describes the connectors and ports located on the rear of the device.

Internal Parts

Identifies and labels the major internal components of the device.

Installation Guide

Installation Requirements

Outlines the necessary environmental and location conditions for installing the repeater.

Before Installation

Details pre-installation checks including voltage, product status, and parameter configuration.

Installation Steps

Provides a step-by-step guide for physically installing the repeater unit.

Installing the Duplexer

Guides on how to install an optional duplexer module onto the repeater.

Installation Diagram

Illustrates the physical connections and layout during the repeater installation process.

After-installation Verification

Confirms the repeater is functioning correctly after installation.

Status Indication

LCD Icon

Lists and explains the various icons displayed on the LCD for status indication.

LED Indicator

Describes the meaning of different LED indicators on the device.

Basic Operations

Turning the Repeater On/Off

Instructions on how to power the repeater on and off correctly.

Adjusting the Volume

Details how to adjust the audio volume for the repeater.

Adjusting the Power Level

Explains how to set the transmitter power level to High or Low.

Backlight

Describes how to activate and configure the device's backlight.

Locking/Unlocking the Repeater

Information on how to lock/unlock device controls to prevent accidental operation.

Changing the Channel

How to cycle through and select different channels on the repeater.

Menu Navigation

Radio Info

Accesses and displays detailed information about the repeater's hardware and software.

Channel Info

Displays specific configuration details for each channel.

Scan

Enables monitoring of communication activities on selected channels.

Digital Speaker

Controls audio output for digital channels by selecting slots or muting.

Alarm Information

Over Temperature Alarm

Details the cause and resolution for the over-temperature alarm condition.

Fan Failure Alarm

Explains the fan failure alarm, its implications, and troubleshooting steps.

VSWR Alarm

Describes the VSWR alarm, its causes, and how to resolve it.

Low Forward Power Alarm

Outlines the low forward power alarm and steps for troubleshooting.

Over/Low Voltage Alarm

Covers alarms related to power supply voltage deviations and their solutions.

TX/RX Unlock Alarm

Explains alarms indicating issues with TX/RX PLL unlocking and troubleshooting.

Troubleshooting

Care and Cleaning

Product Care

Provides guidelines for maintaining the product's performance and longevity.

Product Cleaning

Instructions on how to safely clean the device's exterior and components.

Optional Accessories