SDB670 DMR Base Station Repeater 400 – 480 MHz TU Band 25 Watt DC Powered (12V) 12.5 / 25 kHz Channel Spacing Includes DC Power Cable


Digital voice and data capabilities
IP distributed architecture
DMR Tier II conventional and Tier III trunked


Supporting instant push-to-talk voice communications and VoIP telephone connectivity as well as open-standards applications support, the Simoco Xd digital base station is more than just a radio repeater. Each SDB670 forms the bridge between groups of radios and extends this to the world of IP.

The SDB670 builds on the highly successful and widely deployed Xfin blade, combining RF elements and control intelligence in one box for a unique architecture that has been proven in systems from a single base station to many hundreds.

Frequency BandsVHF: 136–174MHz
UHF: 400–480MHz
UHF: 440–520MHz
Power Supply13.6 V DC (25 W) or 110/240V AC (refers to SDB670 (25 W) variants which are available in EMEA only)
Frequency Stability+/-0.5ppm
Channel Bandwidth12.5/25kHz
Channel Capacity2000
Dimensions408 mm (width) x 487 mm (deep) x 88.9 mm (height) (19” rack mount)
Weight9.2 kg / 8.7 kg
Emission Masks7K60FXD (data), 7K60FXE (voice), 7K60F1W (voice and data) for 4FSK digital modulation, 11K0F3E for 12.5 kHz modulation
RF Output Power25 W
Modulation Limiting+/-2.5 @ 12.5kHz, +/-5.0 kHz @ 25kHz
FM Hum and Noise-40dB (TIA-603-B)
Conducted / Radiated EmissionComplies with ETS086-1 / ASNZS4295 / TIA603-B
Adjacent Channel Power-60dBc (ETS086-1)
Spurious emissions-80 dBc
Audio Response+1/-3dB
Audio Distortion3% (TIA-603-B)
Digital Vocoder TypeAMBE+2
Analogue Sensitivity-117.5dBm (12dB SINAD)
Digital Sensitivity-117.5dBm (BER 1%)
Intermodulation70dB (ETS086-1)
Adjacent Channel Selectivity>65 dB @ 12.5 kHz, >73 dB @ 25 kHz (ETS086-1)
Spurious Rejection70dB (ETS086-1)
Hum and Noise-40dB (TIA603-B)
Audio Response+1/-2dB (0.3-2.55kHz)
Audio Distortion3% @ 4W
Conducted Spurious Emission-57dBm (ETS086-1)
Operating Temperature-30°C to +60°C (DC variants), -30°C to +55°C (AC variant)
Storage Temperature-40°C to +80°C
  • Compact 2U size
  • Optional mountings for rack mount and wall mount installations
  • Easily identifiable indications for transmitting & receive in both slots
  • Health and alarms are clear at-a-glance, with further information available via the IP management application
  • Integrated Power Supply
  • 100% Duty Cycle at 25W
  • IP connectivity for applications interface, configuration, monitoring, telephony and trunking support
  • Programmable facilities connector

Additional information

Weight3 kg