LCF78-50JA
7/8" CELLFLEX® Premium Attenuation Low-Loss Foam-Dielectric Coaxial Cable

Name: 7/8" CELLFLEX® Premium Attenuation Low-Loss Foam-Dielectric Coaxial Cable
SKU: LCF78-50JA

Rev : L | Rev date : 15 Nov 2025

CELLFLEX® 7/8" low loss flexible cable

Feature / Benefits

Ultra Low Attenuation

The reduced attenuation of CELLFLEX® coaxial cable results in extremly efficient signal transfer in your RF system, especially at high frequencies.

Complete Shielding

The solid outer conductor of CELLFLEX® coaxial cable creates a continuous RFI/EMI shield that minimizes system interference.

Low VSWR

Special low VSWR versions of CELLFLEX® coaxial cables contribute to low system noise.

Outstanding Intermodulation Performance

CELLFLEX® coaxial cable's solid inner and outer conductors virtually eliminate intermods. Intermodulation performance is also confirmed with state-of-the-art equipment at the RFS factory.

High Power Rating

Due to their low attenuation, outstanding heat transfer properties and temperature stabilized dielectric materials, CELLFLEX® cable provides safe long term operating life at high transmit power levels.

Wide Range of Application

Typical areas of application are: feedlines for broadcast and terrestrial microwave antennas, wireless cellular, PCS and ESMR base stations, cabling of antenna arrays, and radio equipment interconnects

Applications

Main feed line, intended for outdoor usage

Structure

Cable Type

Foam-Dielectric, Corrugated

Size

7/8

Jacket Option

Black

Inner Conductor Diameter

9.1mm (0.358in)

Inner Conductor Material

Copper Tube

Dielectric Diameter

21.5mm (0.846in)

Dielectric Material

Foam Polyethylene

Outer Conductor Diameter

25.2mm (0.992in)

Outer Conductor Material

Corrugated Copper

Jacket Diameter

27.8mm (1.094in)

Jacket Material

Black Polyethylene

Testing and Environmental

Installation Temperature

-40°C to 60°C (-40°F to 140°F)

Storage Temperature

-70°C to 85°C (-94°F to 185°F)

Operation Temperature

-50°C to 85°C (-58°F to 185°F)

Compliance

DIN EN ISO 9001:2015

ISO 14001:2015

RoHS 2011/65/EU - China RoHS SJ/T 11364-2006

REACH (EC 1907/2006)

Electrical Specifications

Impedance

50 +/- 1 Ω

Maximum Frequency

5 GHz

Velocity

88 %

Capacitance

74pF/m (22.5pF/ft)

Inductance

0.185µH/m (0.056µH/ft)

Peak Power Rating

85 kW

RF Peak Voltage

2920 Volts

Jacket Spark

8000 Volt RMS

Inner Conductor dc Resistance

2.04ohm/1000 m (0.62ohm/1000 ft)

Outer Conductor dc Resistance

1.55ohm/1000 m (0.472ohm/1000 ft)

Return Loss (VSWR) Performance

Standard 20dB (1.222) / Premium 23/24dB (1.152/1.135) on specified frequencies

Phase Stabilized

Phase stabilized and phase matched cables and assemblies are available upon request.

Mechanical Specifications

Cable Weight

0.39kg/m (0.262lb/ft)

Minimum Bending Radius

120mm (5in)

Minimum Bending Radius

250mm (10in)

Bending Moment

13 (10)

Tensile Strength

1440N (324lb)

Recommended / Maximum Clamp Spacing

0.8 / 1 (2.75 / 3.25)

Attenuation @ 20°C (68°F) and Power Rating @ 40°C (104°F)

Frequency, MHz	dB per 100m	dB per 100ft	Power, kW
Frequency, MHz	dB per 100m	dB per 100ft	Power, kW
100	1.16	0.35	7.22
200	1.66	0.51	5.05
450	2.55	0.78	3.29
700	3.23	0.99	2.59
800	3.48	1.06	2.41
900	3.71	1.13	2.26
1800	5.44	1.66	1.54
2000	5.77	1.76	1.45
2200	6.09	1.86	1.38
2400	6.40	1.95	1.31
2700	6.84	2.09	1.23
3000	7.27	2.22	1.15
3500	7.95	2.42	1.05
4000	8.60	2.62	0.97
5000	9.81	2.99	0.85