LMR400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 | 7.240 mm | 0.285 in |
| Diameter Over Jacket | 10.290 mm | 0.405 in |
| Inner Conductor OD | 2.740 mm | 0.108 in |
| Nominal Size | 0.400 in |
| Outer Conductor OD | 8.080 mm | 0.318 in |
电气特性--Electrical Specifications
| Cable Impedance | 50 ohm |
| Capacitance | 78 pF/m | 24 pF/ft |
| dc Resistance, Inner Conductor | 4.490 ohms/km | 1.370 ohms/kft |
| dc Resistance, Outer Conductor | 5.610 ohms/km | 1.710 ohms/kft |
| dc Test Voltage | 3000 V |
| Jacket Spark Test Voltage (rms) | 8000 V |
| Maximum Frequency | 16.20 GHz |
| Operating Frequency Band | 30 – 6000 MHz |
| Peak Power | 16.0 kW |
| Shielding Effectiveness | >90 dB |
| Velocity | 0.85 |
频响特性--Performance
| Frequency | Attenuation (dB/100 m) | Attenuation (dB/100 ft) |
| 30 MHz | 2.49 | 0.76 |
| 50 MHz | 3.18 | 0.97 |
| 150 MHz | 4.92 | 1.5 |
| 220 MHz | 6.23 | 1.9 |
| 450 MHz | 8.86 | 2.7 |
| 900 MHz | 12.8 | 3.9 |
| 1500 MHz | 16.7 | 5.1 |
| 1800 MHz | 18.4 | 5.6 |
| 2000 MHz | 19.4 | 5.9 |
| 2400 MHz | 21.65 | 6.6 |
| 2500 MHz | 22 | 6.7 |
| 3000 MHz | 24.6 | 7.5 |
| 4000 MHz | 28.87 | 8.8 |
| 4500 MHz | 30.84 | 9.4 |
| 5000 MHz | 32.81 | 10 |
| 5200 MHz | 33.46 | 10.2 |
| 5500 MHz | 34.78 | 10.6 |
| 5800 MHz | 35.76 | 10.9 |
| 6000 MHz | 36.42 | 11.1 |