Based on Caltta's advanced SDR platform, DMR ZXSDR BS8700 implements the distributed architecture that separates the baseband from the radio frequency (RF). ZXSDR BS8700 consists of ZXSDR B8200 and ZXSDR R8881 and compatible with both digital and analog trunking.
World-leading SDR architecture, broader coverage.
Flexible networking with star and chain networks supported.
Optical fiber connection without feeder loss.
High sensitivity and better call quality.
Adapts multi-carrier technology, and realizes software expansion for cost savings.
High environmental adaptability.
Smooth evolution to 4G.
Frequency scanning to eliminate interference.
Efficient amplifier, natural heat dissipation, 80% power saving.
| B8200(BBU) | |
| Capability | 16 Carriers |
| Slot Capacity | 2/ Channel |
| Multi-access Method | TDMA |
| Size ( H × W × D ) | 88.4 mm × 482.6 mm × 197 mm |
| Weight | ≤ 7.5 kg |
| Power Consumption | ≤135W |
| Power Supply | - 48 V DC / 220 V AC |
| Synchronization | GPS |
| Operating temperature | - 30 °C to + 60 °C |
| Storage Temperature | -40℃ to +85 ℃ |
| Operating humidity | 5 % ~ 95 % |
| Dust and Water Resistance | IP20 |
| Emission and immunity | ETSI TR 102 398 V1.5.1 (2023-11), ETSI TS 102 361-1 V2.6.1 (2023-05) ETSI TS 102 361-2 V2.5.1 (2023-05), ETSI TS 102 361-3 V1.3.1 (2017-10) ETSI TS 102 361-4 V1.12.1 (2023-07) |
| R8881(RRU) | |
| Frequency | 400~470MHz |
| Adjacent channel selectivity | ≥ 60 dB @ 12.5 kHz, ≥ 70 dB @ 25 kHz |
| Channel Spacing | Analog: 25/12.5 kHz; Digital: 12.5 kHz |
| Multi-access Method | TDMA |
| Size (H x W x D) | 370mm × 320mm × 215mm |
| Weight | ≤20kg |
| Working Mode | DMR / MPT Trunking , DMR / MPT Conventional / Simulcasting |
| Power Supply | -48 V DC/ 220 V AC |
| Operating Temperature | -40ºC~+60ºC |
| Storage Temperature | -40℃ to +85 ℃ |
| Operating Humidity | 5%~98% |
| Dust and Water Resistance | IP65 |
| Modulation | Analog: FM (optional), Digital: 4FSK |
| Digital Sensitivity | -125dBm (BER 5%) / 0.128uV |
| Receiver Co-Channel Rejection | ≥ -12dB |
| Diversity Mode | 2 Diversities, 4 Diversites |
| Frequency stability | ≤ ±0.05 ppm |
| Output RF Power | ≤60W (Up to 4 carriers) |
| Audio Distortion | ≤ 3% |
| Duplex Spacing | 10MHz(can be customized) |
| Intermodulation Rejection | ≥70dB |
| Receiver spurious rejection | ≥70dB |
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