Lifetime Connectivity

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

Rev : g | Rev date : 15 Nov 2025

CELLFLEX®7/8" premium attenuation low loss flexible cable

Feature / Benefits

  • Ultra Low Attenuation

The further reduced attenuation of CELLFLEX® premium attenuation 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.

  • Meets/Exceeds:  

IEC 60754-1, -2; IEC 60332-1-1, -2; IEC 61034-1, -2; IEC 60332-3-24; EN50575

rfs-cellflex-lcf78.png
Applications
Applications Indoor, Wireless Communication, TV & Radio, HF Defense, Microwave, Mobile Radio, Cable Solutions
Structure
Cable Type Foam-Dielectric, Corrugated
Size 7/8
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, Metalhydroxite Filling
Testing and Environmental
Fire Performance Flame Retardant, LS0H
Installation Temperature -15°C to 60°C (5°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)
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 0.46kg/m (0.309lb/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
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

External Document Links

Notes

  • Notes LCF78-50JFNTC: TC cables (temperature cycled) are cables that are aged in order to reduce hysteresis effects. Available upon request.

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