Hytera RD625 UHF DMR Repeater - Advanced Communication Solution

The Hytera RD625 UHF DMR Repeater is designed to deliver seamless communication across digital and analogue platforms, adhering to the Digital Mobile Radio (DMR) open ETSI standard. This versatile repeater operates efficiently with both digital and analogue signals.

Key Features

• Flexible IP Networking: Connect the repeater to an IP-based communication network across multiple sites, utilizing the roaming function for voice and data services across cells.
• VoIP Integration: Seamlessly connect existing VoIP telephone systems to the DMR radio network, enabling DMR radio users to engage in half-duplex conversations with telephone network participants. Telephone users can make individual or group calls within the radio network.
• Dual-Mode Operation: The RD625 supports both analogue and digital modes, automatically switching based on the receiver signal type, thus eliminating manual configuration of frequencies and channels.
• Adaptable Transmitting Power: Features an integrated power supply that switches to a backup DC supply from a sealed lead-acid battery during AC power failures, ensuring fail-safe communication.

General Specifications

• Frequency Range: UHF (403-527 MHz)
• Supported Operating Modes: DMR Tier II (conventional DMR) in accordance with ETSI TS 102 361-1/2/3, analogue
• Channel Capacity: 16 channels
• Channel Spacing: 12.5 / 20 / 25 kHz
• Operating Voltage: 13.6 ± 15% VDC, 90 V - 264 VDC
• Max. Power Consumption (Standby): ≤ 0.5 A at 13.6 VDC
• Max. Power Consumption (Transmission): ≤ 5.5 A at 13.6 VDC
• Frequency Stability: ± 0.5 ppm
• Antenna Impedance: 50 Ω
• Dimensions (H × W × D): 108 × 210 × 348 mm
• Weight: 5000 g (with duplexer)

Receiver Specifications

• Sensitivity (Analogue): 0.3 μV (12 dB SINAD), 0.22 μV (typical) (12 dB SINAD), 0.4 μV (20 dB SINAD)
• Sensitivity (Digital): 0.3 μV / BER 5%
• Adjacent Channel Selectivity:
  • TIA-603: 65 dB at 12.5 kHz / 75 dB at 20 / 25 kHz
  • ETSI: 60 dB at 12.5 kHz / 70 dB at 20 / 25 kHz
• Intermodulation:
  • TIA-603: 75 dB at 12.5 kHz / 20 / 25 kHz
  • ETSI: 70 dB at 12.5 kHz / 20 / 25 kHz
• Spurious Response Rejection:
  • TIA-603: 75 dB at 12.5 kHz / 20 / 25 kHz
  • ETSI: 70 dB at 12.5 kHz / 20 / 25 kHz
• Signal-to-Noise Ratio (S/N): 40 dB at 12.5 kHz, 43 dB at 20 kHz, 45 dB at 25 kHz
• Audio Distortion: ≤ 3%
• Audio Sensitivity: +1 to -3 dB
• Conducted Spurious Emission: < -57 dBm

Transmitter Specifications

• Transmitting Power: 1 - 25 W (adjustable)
• Modulation:
  • 11 K0F3E at 12.5 kHz
  • 14 K0F3E at 20 kHz
  • 16 K0F3E at 25 kHz
  • 4FSK Digital Modulation: 12.5 kHz (data only): 7K60FXD, 12.5 kHz (data and voice): 7K60FXW
• Interfering Signals and Harmonics: -36 dBm (< 1GHz), -30 dBm (> 1GHz)
• Modulation Limiting: ± 2.5 kHz at 12.5 kHz, ± 4.0 kHz at 20 kHz, ± 5.0 kHz at 25 kHz
• Hum and Noise: 40 dB at 12.5 kHz, 43 dB at 20 kHz, 45 dB at 25 kHz
• Adjacent Channel Selectivity: 60 dB at 12.5 kHz, 70 dB at 20/25 kHz
• Audio Sensitivity: +1 to -3 dB
• Nominal Audio Distortion: ≤3%
• Digital Vocoder Type: AMBE+2™

Environmental Conditions

• Operating Temperature Range: -30 °C to +60 °C
• Storage Temperature Range: -40 °C to +85 °C