TETRA/P25/DMR/PMR数字选带/选频直放站
京奥通信专网通信数字选带/选频直放站采用了基于FPGA和DSP平台的软件无线电（SDR）技术。与传统模拟中频声表面波滤波器相比，该方法具有较高的带外抑制和高的载波内干扰。它还可以通过软件进行即时过滤器的更改/升级，而不需要昂贵的硬件升级。
京奥通信专网通信数字选带/选频直放站有助于扩大公共安全和应急通信网络的覆盖范围。京奥通信为TETRA、DMR、PMR、P25和LTE专网提供完整和集成的解决方案，以确保主要公共基础设施的覆盖；如派出所、车库、发电厂、展厅、机场、运动场、公路和铁路隧道、酒店、会议中心、商场、办公楼、停车场等。
性能特点
- 符合TETRA或P25标准
- 支持选频滤波器带宽为60KHz、120KHz和180KHz
- 满足12µ秒时延
- 基于数字时隙的AGC和静噪功能
- RJ-45端口，支持本地控制的IP Web浏览器GUI
- 额外的RJ-45端口，支持客户提供的以太网或无线调制解调器
- 支持SNMP v2 & v3+MIB文件
- 支持干接点外部报警输入输出
- IP-67户外防水防护等级
- 重量轻，体积小，灵活的墙壁和抱杆安装。
- 符合RoHS
主要技术指标
Electrical Specification
Frequency Bands: UL: 380-385MHz / DL: 390-395MHz
Max Output Power: 30dBm @ 1 Carrier, +24dBm per Carrier @ 4 Carriers, +21dBm per Carrier @ 8 Carriers(UL); 36dBm @ 1 Carrier, +30dBm per Carrier @ 4 Carriers, +27dBm per Carrier @ 8 Carriers(DL)
Working Bandwidth: 1-8 TETRA Carriers with GUI selectable bandwidths 60KHz, 120KHz and 180KHz
Max Gain: 87dB±2dB
Gain Adjustment: 30dB in 1 dB steps
Time Slot Based AGC: Min 30dB
ALC: △PO≤2dB
VSWR: < 1.5
Ripple in Band: Max ±2dB
Intermodulation: Complies with ETSI and TETRA Standard
Spurious Emission: Max -36dBm@9KHz-1GHz; Max -30dBm@1-12.75GHz
Digital Squelch: Support for uplink
Antenna Isolation: Oscillation Detection and Mitigation Feature
I/O Impedance: 50 ohm
Uplink Noise Figure: Max 5dB @Max. Gain
Group Time Delay: ≤12µs
MTBF: Min. 80,000 hours
Power Supply: 220V AC 50~60Hz/DC, Backup (optional)
Power Consumption: Max 180W
NMS Monitor Function: Real-time alarm for door open, Temperature, Power Supply, Output Power, Gain, Uplink ATT, Downlink ATT and etc.
SNMP Function: SNMP V3 and MIB File
External and Connection
RF Connector: N-Type Female
Local Control: IP Web Browser GUI via RJ-45 Port
Remote Monitoring and Control: Support remote IP Viewing of GUI via external ethernet modem or embedded wireless modem
Dry Contact input alarm: Include; to alarm external UPS
Mechanical Specification
Weather Resistance: IP67
Temperature Range: -25℃ to +55℃
Relative Humidity: Max 95%
Dimension: 499*399*225mm
Weight: Max 28kg
