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Hytera HM 788

Hytera MD 628
Hytera HP79XEx IIC
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The Hytera HM788 is a professional digital mobile radio designed for reliable, high-quality communication in vehicles, control rooms, and demanding industrial environments. Featuring a remote-control head, clear audio, Bluetooth connectivity, GPS positioning, and advanced digital communication capabilities, it is ideal for fleet management, transportation, public safety, and industrial operations.

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Description

General Specifications
Frequency Range UHF: 350–470 MHz; VHF: 136–174 MHz
Channel Capacity 1024
Zone Capacity 64 (each with a maximum of 256 channels)
Channel Spacing 12.5 kHz / 20 kHz / 25 kHz
Operating Voltage 13.6 V ±15%
Current Drain – Standby <0.5 A
Current Drain – Receive <2.0 A
Current Drain – Transmit (1 W) <3 A
Current Drain – Transmit (5 W) <4 A
Current Drain – Transmit (25 W) <8 A
Current Drain – Transmit (45/50 W) <12 A
Frequency Stability ±0.5 ppm
Antenna Impedance 50 Ω
Dimensions (H × W × D) 61.5 × 177 × 179 mm
Weight 1520 g
LCD Display 2.4 inches
Receiver Specifications
Analogue Sensitivity 0.18 µV (12 dB SINAD); 0.16 µV typical (12 dB SINAD)
Digital Sensitivity 0.18 µV / BER 5%
Selectivity (TIA-603) 60 dB at 12.5 kHz; 70 dB at 20/25 kHz
Selectivity (ETSI) 60 dB at 12.5 kHz; 70 dB at 20/25 kHz
Intermodulation (TIA-603) 70 dB at 12.5/20/25 kHz
Intermodulation (ETSI) 70 dB at 12.5/20/25 kHz
Spurious Response Rejection (TIA-603) 70 dB at 12.5/20/25 kHz
Spurious Response Rejection (ETSI) 70 dB at 12.5/20/25 kHz
Blocking (TIA-603) 80 dB
Blocking (ETSI) 84 dB
Hum and Noise 40 dB at 12.5 kHz; 43 dB at 20 kHz; 45 dB at 25 kHz
Rated Audio Power Output Internal (20 Ω load): 3 W; External (8 Ω load): 7.5 W
Maximum Audio Power Output Internal (20 Ω load): 8 W; External (8 Ω load): 20 W
Rated Audio Distortion ≤3%
Audio Response +1 to -3 dB
Conducted Spurious Emission < -57 dBm
Transmitter Specifications
RF Power Output – Low Power UHF: 1–25 W; VHF: 1–25 W
RF Power Output – High Power UHF: 1–45 W; VHF: 1–50 W
FM Modulation 11K0F3E at 12.5 kHz; 14K0F3E at 20 kHz; 16K0F3E at 25 kHz
4FSK Digital Modulation 12.5 kHz data only: 7K60FXD; 12.5 kHz data and voice: 7K60FXW
Conducted/Radiated Emission -36 dBm below 1 GHz; -30 dBm above 1 GHz
Modulation Limiting ±2.5 kHz at 12.5 kHz; ±4.0 kHz at 20 kHz; ±5.0 kHz at 25 kHz
FM Hum and Noise 40 dB at 12.5 kHz; 43 dB at 20 kHz; 45 dB at 25 kHz
Adjacent Channel Power 60 dB at 12.5 kHz; 70 dB at 20/25 kHz
Audio Response +1 to -3 dB
Audio Distortion ≤3%
Digital Vocoder Type AMBE+2™
Digital Protocol ETSI-TS102 361-1, -2, -3
Environmental Specifications
Operating Temperature -30°C to +60°C
Storage Temperature -40°C to +85°C
ESD Protection IEC 61000-4-2 (Level 4); ±8 kV contact; ±15 kV air
American Military Standard MIL-STD-810G
Dust and Water Protection IP54
Humidity Per MIL-STD-810G standard
Shock and Vibration Per MIL-STD-810G standard
Location Services
GNSS GPS; GPS + GLONASS; GPS + BDS
TTFF – Cold Start <1 minute
TTFF – Hot Start <10 seconds
Horizontal Accuracy <5 metres

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  • Dual Operating Modes: Supports conventional digital/analogue operation and digital trunking.

  • Advanced Noise Cancellation: Reduces background noise for clearer voice communication.

  • Digital Encryption: Supports basic, full, and hardware encryption options, depending on configuration.

  • Private, Group & All Calls: Enables flexible communication across teams.

  • Text Messaging: Supports private messages, group messages, and quick text.

  • Emergency Alarm: Provides emergency alert functionality for enhanced safety.

  • Lone Worker Protection: Supports worker safety in demanding environments.

  • GPS Positioning: Supports location services with compatible GNSS configurations.

  • Remote Radio Management: Includes radio monitoring, radio check, and remote enable/disable functions.

  • IP Transit & Wireless Linking: Supports connectivity between compatible communication systems.

  • GPIO Connectivity: Supports public address, horn and lights, voice notification, and ignition sensing.

  • Analogue Signalling: Supports 2-tone signalling and HDC1200.

  • Clarity Transmission: Helps improve voice clarity in challenging acoustic environments.

  • Rugged Design: IP54 protection against dust and water splashes, with MIL-STD-810G environmental compliance.

  • Fleet & Industrial Applications: Suitable for transportation, logistics, public safety, security, and industrial communication.