DMR Repeaters

RD985

Smart Digital-Analog Switch This repeater supports digital and analog modes. It can smartly select the right one based on the type of received signal, allowing you to enjoy digital delights with ease. Advanced TDMA Technology The application of Time Division Multiple Access (TDMA) technology greatly enhances spectrum efficiency, which allows twice the user compared..

Brochure Where to buy
Accessories
  • PS22002 Power supply for repeater (300W, backup power supply applicable) PS22002 Power supply for repeater (300W, backup power supply applicable)
  • PWC11 DC power cable red.black 10A 12AWG 3000mm PWC11 00 PWC11 DC power cable red.black 10A 12AWG 3000mm PWC11 00
  • SM10A1 Desktop microphone SM10A1 Desktop microphone
  • SM16A1 IP54-rated palm microphone SM16A1 IP54-rated palm microphone
  • SM16A2 IP67-rated waterproof palm microphone SM16A2 IP67-rated waterproof palm microphone
  • PC37 Programming cable (USB port) PC37 Programming cable (USB port)
  • PC40 Data transmission cable PC40 Data transmission cable
  • PC47 Programming cable (CPS programming and firmware upgrading) PC47 Programming cable (CPS programming and firmware upgrading)
  • PC49 Back to back data cable PC49 Back to back data cable
  • BRK09 Built-in duplexer installation kit (for DT11 and DT14) BRK09 Built-in duplexer installation kit (for DT11 and DT14)
  • BRK12 Installation accessory for rack-mounted power supply (2U) (black) BRK12 Installation accessory for rack-mounted power supply (2U) (black)
  • BRK14 Installation accessory for rack-mounted power supply (2U) (grey) BRK14 Installation accessory for rack-mounted power supply (2U) (grey)
  • BRK16 Built-in duplexer installation kit (for DT11 - DT17) BRK16 Built-in duplexer installation kit (for DT11 - DT17)
  • BRK18 Installation bracket for power supply BRK18 Installation bracket for power supply
  • BRK19 Wall-mount installation bracket for the repeater BRK19 Wall-mount installation bracket for the repeater
  • POA45 Surge arrester for ethernet port POA45 Surge arrester for ethernet port
Product Description

Smart Digital-Analog Switch

This repeater supports digital and analog modes. It can smartly select the right one based on the type of received signal, allowing you to enjoy digital delights with ease.

Advanced TDMA Technology

The application of Time Division Multiple Access (TDMA) technology greatly enhances spectrum efficiency, which allows twice the user compared with that of traditional FDMA. Obviously, this can not only save your cost in base station and frequency license, but also relieve the pressure of increasing shortage in spectrum resources.

128-bit Digital Encryption

The advanced 128-bit encryption technology can secure your communication from being eavesdropped.

Outstanding Heat Dissipation

The unique cooling design combining a built-in heat pipe and a temperature-controlled fan ensures quick heat dissipation, enabling the repeater to work normally even with full power.

Handy Management Service

With the management software, you can remotely monitor and diagnose a repeater. In addition, you can either record or play back the audio freely in digital mode.

Innovative LED Design

The innovative LED and the 2.0“ HD color display would deliver you the repeater status clearly, as well as a pleasing visual experience.

Specifications
General data
Frequency range
VHF: 136 – 174 MHz
UHF: 400 – 470 MHz
Supported operation modes
  • DMR Tier II (DMR conventional)
  • Analog

DMR Tier II in reference to ETSI TS 102 361-1/2/3

Channel capacity
16
Number of zones
1
Channel spacing (analog)
12.5 / 20 / 25 kHz
Channel spacing (digital)
12.5 kHz
Operating voltage
13.6 ± 15% VDC
Max. power consumption (in stand by)
≤ 0.8 A
Max. power consumption (during transmission)
≤ 11 A
Frequency stability
±0.5 ppm
Antenna impedance
50 Ω
Dimensions (H × W × D)
88 x 483 x 366 mm
Weight
8.5 kg
LCD display
220 x 176 pixels, 262,000 colours, 2.0 inches, 4 lines
Transmitter
Transmitting power
5 – 50 W (adjustable)
Modulation
11K0F3E at 12.5 kHz
14K0F3E at 20 kHz
16K0F3E 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 < 1 GHz
-30 dBm > 1 GHz
Modulation limiting
±2.5 kHz at 12.5 kHz
±4.0 kHz at 20 kHz
±5.0 kHz at 25 kHz
Noise suppression
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 dB to -3 dB
Nominal audio distortion
≤ 3 %
Digital vocoder type
AMBE++
Receiver
Sensitivity (analog)
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
ETSI
65 dB at 12.5 kHz / 75 dB at 20 and 25 kHz
60 dB at 12.5 kHz / 70 dB at 20 and 25 kHz
Intermodulation
TIA-603
ETSI
75 dB at 12.5/20/25 kHz
70 dB at 12.5/20/25 kHz
Spurious response rejection
TIA-603
ETSI
80 dB at 12.5/20/25 kHz
80 dB at 12.5/20/25 kHz
Hum and noise
40 dB at 12.5 kHz
43 dB at 20 kHz
45 dB at 25 kHz
Nominal audio power output
0.5 W
Nominal audio distortion
≤ 3 %
Audio sensitivity
+1 dB to -3 dB
Conducted spurious emission
< -57 dBm
Ambiant data
Operating temperature range
-30 °C to +60 °C
Storage temperature range
-40 °C to +85 °C

 

All Specifications are tested according to TIA/EIA-603, and subject to change without notice due to continuous development.

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