Hytera HM685 GPS BT DMR mobile two-way radio UHF

Hytera HM685 GPS BT DMR Mobile Two-Way Radio (UHF)

Introducing the Hytera HM685, a new generation entry-level professional DMR mobile two-way radio. Ideal for both vehicle and desktop installations, this compact and lightweight radio promises reliable voice and data communication. With an ergonomic design featuring four easy-to-use piano-style buttons, the HM685 offers effortless operation. The AI-based noise cancellation ensures crystal-clear audio, making it an indispensable partner for transportation, business, utilities, and more.

Key Features

• Reliable Communication: High RX sensitivity allows for clear and dependable communications, even in areas with weak or unstable signals.
• Digital and Analogue Compatibility: Operates in both analogue and digital modes, facilitating a seamless transition from analogue to digital communication.
• Innovative Design: The compact, lightweight design makes the HM685 easy to install and operate. A transflective display ensures readability in all lighting conditions, and the four piano-style keys provide excellent tactile feedback.
• Wireless Connection: Built-in Bluetooth 5.0 enables connectivity with audio accessories, enhancing safety and productivity during in-vehicle communications. Note: Bluetooth functionality is available in the BT HM685 version only.
• Crystal-Clear Audio: AI-based noise cancellation filters out ambient noises, ensuring clear communication even on noisy streets or highways. Features like howling suppression prevent feedback, maintaining uninterrupted communication.
• Superior Durability: Built to withstand harsh conditions, the HM685 meets MIL-STD-810G standards and boasts IP54-rated dust and water protection. The secure connection between the palm microphone and the 10-pin aviation connector ensures durability.

Technical Specifications

• General:
  • Frequency range UHF: 400-470 MHz
  • Channels & zones: 512 channel capacity, 16 zone capacity
  • 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: 164 x 159 x 42 mm
  • 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: MIL-STD-810G standard
  • Shock and Vibration: MIL-STD-810G standard
• Location Service:
  • GNSS: GPS, GPS+GLONASS, GPS+BDS
  • TTFF (Time to First Fix) Cold Start: < 1 minute
  • TTFF (Time to First Fix) Hot Start: < 10 seconds
  • Horizontal Accuracy: < 5 meters