LMR400 Introduction：
LMR series cable was originally introduced by the United States, covering the DC-6G, low-loss, high-power, flexible good RF coaxial cable, and for indoor and outdoor use of the cable itself has additional environmental protection measures are widely used in 3G communication base station, RFID systems, satellite communications systems, military communications, and some that require low-cost radar.
Superior production of low-loss 50 ohm coaxial cable performance super soft LMR series, surpassing foreign brands, great price advantage shelf.
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 |
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 |
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 |