Overview

The Hytera HM789 is a new-generation professional DMR mobile/fixed radio designed for reliable voice and data communication in vehicles, motorcycles, and control centers. With its scalable architecture, IP connectivity, and AI noise cancellation, the HM789 empowers critical communication across public safety, transport, and industrial sectors.


Key Highlights

  • Flexible Deployment: Available in standard, single, or dual control head configurations for use in diverse environments (vehicles, desktops, motorcycles).
  • AI Noise Cancellation: Filters road noise, echo, and background interference to ensure crystal-clear audio.
  • Multiple Interfaces: Supports BT, Ethernet, DB26, GPS antenna, and USB connectivity for versatile integration.
  • Durable Build: Compact 1DIN size, full aluminum chassis for efficient heat dissipation, and IP54 dust/water resistance.
  • Enhanced UI: 2.4″ LCD screen with simplified user interface for fast, intuitive operation.

Deployment Applications (Page 6 Visuals)

  • Motorcycle Setup: Includes control panel, helmet PTT button, wireless/wired earphones, GPS antenna, and mount.
  • Police Vehicle: Equipped with HM789 unit, external speaker, dashboard mic, GPS antenna.
  • Fire Truck: Dual control screens, handheld and desktop mics, foot PTT, antennas, and loudspeakers.


Main Features

Category Features
Operating Modes DMR Tier II/III, Analog Conventional
Messaging Private, Group, Quick, Status Messages
Voice Services Private, Group, All Calls
Connectivity IP Link, Back-to-Back Relay, Bluetooth Data Transmission
Security Emergency Alarm, Lone Worker, Authentication, OTAP, Basic & Full AES256
GPIO Pin Features PA System, Audio/Light Triggers, Alerts
Extra Features Remote Enable/Disable, Scan, Voice Prompts, Signaling Protocols (2-Tone, 5-Tone, HDC1200)

Smart Applications (Page 5 Visual)

  • Back-to-Back Mode: Seamlessly bridges different frequency bands or analog/digital systems.
  • IP Transmission: Facilitates multi-location connectivity via Ethernet without expensive repeaters.
  • Data Relay: Collects and transmits telemetry and SCADA data via IP or radio network.

Technical Specifications

  • Frequency Range: UHF 350-470MHz / VHF 136-174MHz
  • Channel Capacity: 1024 channels / 64 zones
  • Output Power: 1-45W (UHF), 5-50W (VHF)
  • GNSS Support: GPS, GLONASS, BDS
  • Audio Output: Internal 3W / External 7.5W (max 20W)
  • Modulation: 4FSK, FM, AMBE+2™ vocoder
  • Durability: MIL-STD-810G, IP54, ESD ±8kV (contact), ±15kV (air)
  • Operating Temperature: -30°C to +60°C

Accessories

  • Standard:
    • Handheld Mic (with or without keypad)
    • Mounting Bracket, Power Cable, GPS Antenna
  • Optional:
    • Desktop Mic, External Speaker, Programming Cable
    • BT Remote Mic, Wireless PTT Ring, DB26-DB9/DB26 Cable
    • Motorcycle Foot PTT, Antenna, Fuse Kit, Power Supply Unit