
General Specifications
The digital repeater RD985 is the heart for multi-cell conventional DMR radio networks and was developed according to the ETSI standard for DMR. It offers an ergonomic design, reliability and outstanding digital functions for sophisticated communication. RD985 – Your digital advantage over your competitors!
| Frequency ranges |
VHF: 136 – 174 MHz |
| Supported operating modes |
DMR Tier II gemäß ETSI TS 102 361-1/2/3 |
| Number of channels |
16 |
| Number of zones |
1 |
| Channel spacing |
12.5 / 20 / 25 kHz (analog) 12.5 kHz (digital) |
| Operating voltage |
13.6 ± 15% VDC |
| Max. power consumption (in stand by) |
≤ 0.8 A |
| Max. current consumption (during transmission) |
≤ 11 A |
| Frequency stability |
±0.5 ppm |
| Antenna impedance |
50 Ω |
| Dimensions (H × B × T) |
88 x 483 x 366 mm |
| Weight |
8.5 kg |
| LCD display |
220 x 176 pixels, 262,000 colours, 2.0 inches, 4 rows |
Transmitter
| Transmitting power |
1 – 50 W |
| Modulation |
11K0F3E at 12.5 kHz |
| 4FSK digital modulation |
12.5 kHz (data only): 7K60FXD |
| Interfering signals and harmonics |
-36 dBm (< 1 GHz) -30 dBm (> 1 GHz) |
| Modulation limiting |
± 2.5 kHz at 12.5 kHz |
| Noise cancellation |
40 dB at 12.5 kHz |
| Adjacent channel selectivity |
60 dB at 12.5 kHz |
| Audio response |
+ 1 dB to - 3 dB |
| Audio distortion |
≤ 3 % |
| Digital vocoder type |
AMBE +2™ |
Receiver
| Sensitivity (analog) |
0.28 μV (12 dB SINAD) |
| Sensitivity (digital) |
0.3 μV / BER 5% |
| Adjacent channel selectivity |
TIA-603: 65 dB at 12.5 kHz / 75 dB at 20 and 25 kHz |
| Intermodulation |
TIA-603: 75 dB at 12.5/20/25 kHz |
| Spurious response rejection |
TIA-603: 80 dB at 12.5 / 20 / 25 kHz |
| Signal-noise ratio (S/N) |
40 dB at 12.5 kHz |
| Nominal audio power output |
0.5 W |
| Audio distortion |
≤ 3 % |
| Audio response |
+1 dB to -3 dB |
| Conducted spurious emission |
< 57 dBm |
Environmental conditions
| Operating temperature range |
-30 °C to +60 °C |
| Storage temperature range |
-40 °C to +85 °C |
| Relative humidity |
< 95 % |
Features marked with * are available in future versions of the product.
All technical data were tested according to the respective standards. Due to continuing development, technical changes are reserved.
