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LMR 240 Cable Assemblies

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LMR 240 Cable Assemblies

LMR 240 Cable Assemblies is Ideal for Jumper in Wireless Communications Systems needing Low Loss Communications Coax Cable for Short Antenna Feeder runs requiring an easily routable low loss RF cable.

LMR 240 cable loss is another excellent hallmark feature of LMR-240. Size for size the LMR 240 power rating has the lowest loss of any flexible cable and comparable loss to semirigid hard-line cables including LMR 240 vs RG8x.

LMR 240 Cable specifications include a PVC outer jacket, Solid Inner Conductor Bare Copper, and Foam PE Dielectric. Times LMR 240 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).

LMR-240 PVC Cable Assemblies are designed for outdoor weatherbility, incorporating the best materials for UV resistance and have life expectancy in excess of 20 years.

Field Components maintains a wide variety of LMR 240 connectors, including all common interface types, reverse polarity, and a choice of solder or nonsolder center pins. Most LMR connectors employ crimp outer attachment using standard hex crimp sizes. For LMR 240 Crimp tools we recommend the .255" crimp die.

Field Components also offers LMR 240 ultraflex Cable Assemblies.

All LMR-240 cable types are available as pre-terminated cable assemblies.

Choose From Over 6437 LMR 240 Cable Assemblies Connector Combinations
Connector side 1
Connector side 2

Cable Type

Select Cable parameters

LMR 240 Cable Specifications

Description Material In. (mm)
Inner Conductor: Solid Bare Copper
Inner Conductor Diameter: 0.056in (1.42mm)
Dielectric: Foam PE
Dielectric Diameter: 0.150in (3.81mm)
Outer Shield: Aluminum Tape
Outer Shield Diameter: 0.155in (3.94mm)
Overall Braid: Tinned Copper
Overall Braid Diameter: 0.178in (4.52mm)
Over All Cable Diamter: 0.240in (6.10mm)

LMR 240 Environmental Specifications
Installation Temperature Range: F-40/+185 [C-40/+85]
Storage Temperature Range: F-94/+185 [C-70/+85]
Operating Temperature Range: F-40/+185 [C-40/+85]

LMR 240 Electrical Specifications

Velocity of Propagation: 84%
Dielectric Constant: 1.42
Time Delay: 1.21nS/ft (3.97nS/m)
Impedance: 50ohms
Capacitance: 24.2pF/ft (79.4pF/m)
Inductance: 0.060uH/ft (0.20uH/m)
Shielding Effectiveness: >90dB

DC Resistance
Inner Conductor: 3.2ohms/1000ft (10.5ohms/km)
Outer Conductor: 3.89ohms/1000ft (12.8ohms/km)
Voltage Withstand: 1500Volts DC
Jacket Spark: 5000Volts RMS
Peak Power: 5.6 kW

LMR-240 Cuttoff Frequency: 31Ghz

Frequency (MHz) 30 50 150 220 450 900 1500 1800 2000 2500 5800
Attenuation dB/100 ft 1.3 1.7 3.0 3.7 5.3 7.6 9.9 10.9 11.5 12.9 20.4
Attenuation dB/100 m 4.4 5.7 9.9 12.0 17.3 24.8 32.4 35.6 37.7 42.4 66.8
Avg. Power kW 1.49 1.15 0.66 0.54 0.38 0.26 0.20 0.18 0.17 0.15 0.10