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LMR UltraFlex has a stranded center conductor and rubber outer jacket designed for multiple bending/flexing cycles. It is used for both indoor and outdoor applications. Flexibility and bendability are hallmarks of the LMR400-UF cable design. The flexible outer conductor enables the tightest bend radius available for any cable of similar size and performance. Low Loss is another hallmark feature of LMR400-UF. Size for size LMR has the lowest loss of any flexible cable and comparable loss to semirigid hard-line cables. RF Shielding is 50 dB greater than typical single shielded coax (40 dB). The multi-ply bonded foil outer conductor is rated conservatively at > 90 dB (i.e. >180 dB between two adjacent cables). Weatherability: LMR400-UF cables are designed for outdoor exposure and have a life expectancy in excess of 10 years. Electrical Specifications: Performance Property Units US (metric): Cutoff Frequency 16.2 GHz Velocity of Propagation 85% Dielectric Constant 1.38 Time Delay 1.20 (3.92) nS/ft (nS/m) Impedance 50 ohms Capacitance 23.9 (78.40) pF/ft (pF/m) Inductance 0.060 (0.21) uH/ft (uH/m) Shielding Effectiveness >90 dB DC Resistance: Inner Conductor 1.07 (3.51) ohms/1000ft (/km); Outer Conductor 1.65 (5.4) ohms/1000ft (/km) Voltage Withstand 2500 Volts DC Jacket Spark 8000 Volts RMS Peak Power 16 kW Frequency (MHz): 30, 50, 150, 220, 450, 900, 1500, 1800, 2000, 2500, 5800 Attenuation dB/100 ft: 0.8, 1.1, 1.8, 2.2, 3.3, 4.7, 6.2, 6.8, 7.2, 8.1, 13.0 Avg. Power kW: 2.77, 2.14, 1.22, 1.00, 0.69, 0.48, 0.36, 0.33, 0.31, 0.28, 0.17
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