Hytera HM655 Professional DMR Mobile Two-Way Radio UHF

The Hytera HM655 is a new generation, entry-level professional DMR mobile two-way radio designed to ensure reliable voice and data communication. Perfect for both vehicle and desktop installations, this compact and lightweight device is equipped with a user-friendly speaker microphone featuring a display. The HM655 is your ideal communication partner in sectors such as transportation, utilities, and more.

Key Features

• Reliable Communication: High RX sensitivity ensures clear and dependable communication even in weak or unstable signal areas.
• Handheld Control Head: Convenient speaker microphone with a display and controls for seamless operation, including power on/off, channel switching, and volume adjustment.
• Superior Durability: Built to withstand harsh conditions, the HM655 meets MIL-STD-810G standards and has an IP54 rating for dust and water resistance. Secure 10-pin aviation connector and stretchable palm microphone cord enhance durability.

Technical Specifications

General

• Frequency Range (UHF): 400-470 MHz
• Channel Capacity: 512
• Zone Capacity: 16
• Channel Spacing (Analogue): 12.5kHz/20kHz/25kHz
• Channel Spacing (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 x W x D): 164 x 154 x 42 mm
• Weight: 1100g
• Digital Protocol: ETSI-TS102 361-1,-2,-3

Receiver

• Sensitivity (Analogue): 0.18µV (12dB SINAD)
• Sensitivity (Digital): 0.18µV / BER 5%
• Selectivity (TIA-603): 65dB @12.5kHz / 75dB @20/25kHz
• Inter-modulation (TIA-603): 75dB @12.5/20/25kHz
• Spurious Response Rejection (TIA-603): 75dB @12.5/20/25kHz
• Blocking (TIA-603): 90 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°C to +60°C
• Storage Temperature: -40°C to +85°C
• 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