Hytera HM685 DMR mobile two-way radio VHF

Hytera HM685 DMR Mobile Two-Way Radio VHF - Professional Communication Solution

The Hytera HM685 is a new generation entry-level professional DMR (Digital Mobile Radio) two-way radio, expertly engineered to provide dependable voice and data communication for both vehicle and desktop installations. Its compact and lightweight design makes installation effortless, while its ergonomic features, including four piano-style buttons, ensure easy operation.

Key Features:

• Reliable Communication: High RX sensitivity allows the HM685 to deliver clear and stable communication even in weak signal areas.
• Digital and Analogue Compatibility: Seamlessly switch between analogue and digital modes, facilitating a smooth transition to digital with minimal investment.
• Innovative Design:
  • Ergonomically designed with two-shot molding for easy operation recognition.
  • Transflective display ensures readability in both dark and direct sunlight conditions.
  • Piano-style keys provide excellent haptic feedback.
• Crystal-Clear Audio:
  • AI-based noise cancellation filters out ambient noise, ensuring clear communication.
  • Howling suppression prevents feedback between radios.
• Superior Durability:
  • Built to withstand extreme temperatures, shocks, and vibrations.
  • Meets MIL-STD-810G standards and IP54 for dust and water protection.
  • Durable palm microphone connection and cord for extended service life.

Technical Specifications:

General

• Frequency Range: VHF: 136-174 MHz
• Channel Capacity: 512, Zone Capacity: 16
• Channel Spacing: Analogue: 12.5kHz/20kHz/25kHz, Digital: 25kHz
• Operating Voltage: 13.6 V DC ±15%
• Current Drain: Standby: <0.5 A, Receive: <2.0 A, Transmit 5W: <4 A, Transmit 25W: <8 A, Transmit 45W: <12 A
• Frequency Stability: +0.5 ppm
• Antenna Impedance: 50 Ohm
• Dimensions (H×W×D): 164 x 159 x 42mm
• Weight: 1150g
• Display: 1.45 inch, 4 lines
• Digital Protocol: ETSI-TS102 361-1,-2,-3

Receiver

• Sensitivity: Analogue: 0.18µV (12dB SINAD), Digital: 0.18µV / BER 5%
• Selectivity: TIA-603: 65dB @12.5kHz / 75dB @20/25kHz, ETSI: 50 dB @12.5kHz / 70dB @20/25kHz
• Inter-modulation: TIA-603: 75dB @12.5/20/25kHz, ETSI: 70dB @12.5/20/25kHz
• Spurious Response Rejection: TIA-603: 75dB @12.5/20/25kHz, ETSI: 70dB @12.5/20/25kHz
• Blocking: TIA-603: 90 dB, ETSI: 84 dB
• Hum and Noise: 40dB @12.5kHz; 43dB @20kHz; 45dB @25kHz
• Rated Audio Power Output: Internal (20 Ohm load): 3W, External (8 Ohm load): 6W
• Max Audio Power Output: Internal (20 Ohm load): 7.5W, External (8 Ohm load): 20W
• Rated Audio Distortion: <3%
• Audio Response: +1 to -3 dB
• Conducted Spurious Emission: < -57 dBm

Transmitter

• RF Power Output: Low Power model: 5-25 W
• FM Modulation: 11K0F3E @12.5kHz, 14K0F3E @20kHz, 16K0F3E @25kHz
• 4FSK Digital Modulation: 12.5kHz data only: 7K60FXD, 12.5kHz data and voice: 7K60FXW
• Conducted/Radiated Emission: -36dBm @<1GHz; -30dBm @>1GHz
• Modulation Limiting: ±2.5kHz @12.5kHz; ±4.0kHz @20kHz; ±5.0kHz @25kHz
• FM Hum and Noise: 40dB @12.5kHz; 43dB @20kHz; 45dB @25kHz
• Adjacent Channel Power: 60dB @12.5kHz; 70dB @20/25kHz
• Audio Response: +1 to -3 dB
• Audio Distortion: <3%
• Digital Vocoder Type: AMBE+2

Environmental

• Operating Temperature: -30℃ to +60℃
• Storage Temperature: -40℃ to +85℃
• ESD: IEC 61000-4-2 (level 4), +8kV (contact); +15kV (air)
• American Military Standard: MIL-STD-810G
• Dust & Water Protection: IP54
• Humidity: Per MIL-STD-810G standard
• Shock and Vibration: Per MIL-STD-810G standard