LMR240介绍:
LMR系列电缆最初是由美国引入的,覆盖DC-6G,低损耗、大功率、柔性好的射频同轴电缆,并针对室内、野外使用该电缆本身有额外的环境保护措施,被广泛应用于3G通信基站、RFID系统、卫星通信系统、军用通信以及一些一些需要低成本的雷达上。
50欧低损耗超柔软LMR系列同轴电缆性能优越,超越国外品牌,价格极具优势,现货供应。
标注尺寸--Dimensions
Diameter Over Dielectric | 3.810 mm | 0.150 in |
Diameter Over Jacket | 6.100 mm | 0.240 in |
Inner Conductor OD | 1.420 mm | 0.056 in |
Nominal Size | 0.240 in |
Outer Conductor OD | 4.520 mm | 0.178 in |
电气特性--Electrical Specifications
Cable Impedance | 50 ohm |
Capacitance | 80 pF/m | 24 pF/ft |
dc Resistance, Inner Conductor | 10.830 ohms/km | 3.300 ohms/kft |
dc Resistance, Outer Conductor | 12.760 ohms/km | 3.890 ohms/kft |
dc Test Voltage | 2000 V |
Jacket Spark Test Voltage (rms) | 5000 V |
Maximum Frequency | 31.00 GHz |
Operating Frequency Band | 30 – 6000 MHz |
Peak Power | 5.6 kW |
Shielding Effectiveness | >90 dB |
Velocity | 0.83 |
频响特性--Performance
Frequency | Attenuation (dB/100 m) | Attenuation (dB/100 ft) |
30 MHz | 4.9 | 1.5 |
50 MHz | 6.2 | 1.9 |
150 MHz | 10.2 | 3.1 |
220 MHz | 12.5 | 3.8 |
450 MHz | 17.4 | 5.3 |
900 MHz | 24.9 | 7.6 |
1500 MHz | 32.8 | 10 |
1800 MHz | 36.4 | 11.1 |
2000 MHz | 38.7 | 11.8 |
2400 MHz | 42.98 | 13.1 |
2500 MHz | 44 | 13.4 |
3000 MHz | 48.9 | 14.9 |
4000 MHz | 57.74 | 17.6 |
4500 MHz | 62.01 | 18.9 |
5000 MHz | 66.27 | 20.2 |
5200 MHz | 67.91 | 20.7 |
5500 MHz | 70.21 | 21.4 |
5800 MHz | 72.51 | 22.1 |
6000 MHz | 73.82 | 22.5 |