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LMR-240-UltraFlex Cable Assemblies

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LMR-240-UltraFlex Cable Assemblies

Times Microwave's UltraFlex series LMR(R) cables feature stranded center conductor and rubberized outer jacket designed to withstand repeated bending. The LMR-240UF Cable Assemblies series are used for both indoor and outdoor applications.

  • LMR-240-UF Times Microwave Cable SpecificationsLMR-240-UF Times Microwave Cable Specifications

LMR-240-UF UltraFlex Outer Jacket Construction properties include a Rubberized Thermoplastic Elastomer Jacket that is UV and Weather Resistant making it an Ideal choice for Low Loss Cable for outdoor use. These unmatched cable characteristics give the LMR-240 Ultraflex a life expectancy of 10+ years in outdoor environment.

The dual RF Shielding includes an outer overall Tinned Copper braid which over lays a multi-ply bonded foil shield. The shield combination gives this LMR240 a 50dB greater RF Shielding over typical single shielded coax cable (40 dB).

The aerated Foam Polyethylene dielectric and Stranded Bare Copper Center conductor (0.056") add to the coaxial cables extreme flexibility while aiding the cables performance in extreme conditions.

The overall construction of the LMR240 UltraFlex Cable gives additional qualities such as tensile Strength up to 80lbs with a continuous bend radius of 2.5in.

Field Components offers in house Custom Coaxial Cable Assemblies using True Times Microwave LMR-240-UF UltraFlex Cable. This allows Field Components the opportunity to build virtually any variety of LMR240 UltraFlex cable and connector options. All LMR Cable Assemblies are terminated and sealed with UV resistant and weather proof Adhesive Lined Shrink Tubing. The Adhesive lined shrink tubing aids in the protection against the elements and added strain relief. Additionally we can add custom labels on your cables (upon request) which can include your part numbers, your logo, cable destination and cable orientation. Additional specification for requested Custom Labels can be UV resistant, Water proof and in some cases full Color.

Below is a list of the more common LMR-240-UF Cable Assembly types with their relative connectors. Choose your connector specification needs.

You can find out more information about our custom cable assemblies here.

Choose From Over 655 LMR-240-UltraFlex Cable Assemblies Connector Combinations

Build Your LMR240UF RF Coaxial Cables Online in 2 easy steps!

1) Select Connector 1
2) Select Connector 2

(LMR(R) is a registered trademark of Times Microwave Systems)


Connector side 1
Connector side 2

Cable Type

Select Cable parameters

RG-8X vs. LMR-240 ultra-flex

When Comparing RG8x to LMR-240-UF the biggest difference is the cutoff or maximum operating frequency. RG-8x has a maximum operating frequency of 1,000MHz (1GHz), LMR-240 Cable will operate beyond 1,000MHz successfully operating to 5.8GHz. Additionally LMR-240-UF has a lower loss when operating even at lower frequencies @ 150MHz LMR240 has a loss of just .9dB vs RG8x loss of 1.1dB. and when operating to 450MHz LMR-240 loss is only 1.6dB vs. 2.1dB for RG-8x.

LMR-240-UF UltraFlex Times Microwave Construction Specifications

Inner Conductor: Stranded Bare Copper
Inner Conductor Diameter: 0.056inch (1.42mm)
Dielectric: Foam Polyethylene
Dielecrtric Diameter: 0.150inch (3.81mm)
Outer Shield: Aluminum Tape
OuterShield Diameter: 0.155inch (3.94mm)
Overall Braid: Tinned Copper
Overall Braid Diameter: 0.178inch (4.52mm)
Jacket: Black Thermoplastic Elastomer
Outer Cable Diameter: 0.240inch (6.10mm)
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)
Velocity of Propagation: 84%
Dielectric Constant: 1.42
Time Delay: 1.21 nS/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: 4.28ohms/1000ft (14.1ohms/km)
Outer Conductor: 3.89ohms/1000ft (12.8ohms/km)
Voltage Withstand: 1500Volts DC
Jacket Spark: 5000Volts RMS
Peak Power: 5.6 kW

Cuttoff Frequency: 5.8Ghz

Frequency (MHz) 30 50 150 220 450 900 1500 1800 2000 2500 5800
Attenuation dB/100 ft 1.6 2.1 3.6 4.4 6.3 9.1 11.8 13.0 13.8 15.5 24.4
Attenuation dB/100 m 5.3 6.8 11.9 14.4 20.8 29.8 38.9 42.8 45.2 50.9 80.1
Avg. Power kW 1.24 0.96 0.55 0.45 0.31 0.22 0.17 0.15 0.14 0.13 0.08