Lifetime Connectivity

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

Rev : E | Rev date : 15 Nov 2025

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

Feature / Benefits

  • Low Attenuation
    The low attenuation of CELLFLEX® coaxial cable results in highly efficient signal transfer in your RF system.
  • 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.
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Applications
Applications Indoor Wireless Communication TV & Radio HF Defense Microwave Mobile Radio Cable Solutions
Structure
Cable Type Foam-Dielectric, Corrugated
Size 7/8
Jacket Option Black
Inner Conductor Diameter 9mm (0in)
Inner Conductor Material Copper Tube
Dielectric Diameter 22mm (1in)
Dielectric Material Foam Polyethylene
Outer Conductor Diameter 25mm (1in)
Outer Conductor Material Corrugated Copper
Jacket Diameter 28mm (1in)
Jacket Material Polyethylene, PE, Metalhydroxite Filling
Testing and Environmental
Fire Performance Flame Retardant, LS0H
Flame Retardant Jacket Specifications Meets/Exceeds: IEC 60754-1, -2; IEC 60332-1, -3.C; UL 1581; UL 1666; NEC type CATVR;
CPR: https://products.rfsworld.com/userfiles/cpr/rfs-products-cpr-compliance.pdf
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 90 %
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 1.77ohm/1000 m (0.54ohm/1000 ft)
Outer Conductor dc Resistance 1.93ohm/1000 m (0.59ohm/1000 ft)
Return Loss (VSWR) Performance Standard for 40-5000 MHz, Premium according to B-Class
Phase Stabilized

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

Mechanical Specifications
Cable Weight 0.45kg/m (0.3lb/ft)
Minimum Bending Radius 120mm (5in)
Minimum Bending Radius 250mm (10in)
Bending Moment 16 (12)
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
0.5 0.08 0.024 91
1 0.113 0.034 74.2
1.5 0.138 0.042 60.7
2 0.16 0.049 52.4
10 0.359 0.109 23.3
20 0.51 0.156 16.4
30 0.627 0.191 13.4
50 0.813 0.248 10.3
88 1.09 0.331 7.69
100 1.16 0.354 7.22
108 1.21 0.368 6.93
150 1.43 0.437 5.86
174 1.55 0.472 5.41
200 1.66 0.507 5.05
300 2.06 0.627 4.07
400 2.4 0.731 3.49
450 2.55 0.778 3.29
500 2.7 0.823 3.1
512 2.73 0.833 3.07
600 2.98 0.907 2.81
700 3.23 0.986 2.59
750 3.36 1.02 2.49
800 3.48 1.06 2.41
824 3.53 1.08 2.37
894 3.69 1.13 2.27
900 3.71 1.13 2.26
925 3.76 1.15 2.23
960 3.84 1.17 2.18
1000 3.93 1.2 2.13
1250 4.44 1.35 1.89
1400 4.73 1.44 1.77
1500 4.91 1.5 1.71
1700 5.27 1.61 1.59
1800 5.44 1.66 1.54
2000 5.77 1.76 1.45
2100 5.93 1.81 1.41
2200 6.09 1.86 1.38
2400 6.4 1.95 1.31
2500 6.55 2 1.28
2600 6.7 2.04 1.25
2700 6.84 2.09 1.23
3000 7.27 2.22 1.15
3500 7.95 2.42 1.05
4000 8.6 2.62 0.974
4900 9.69 2.95 0.865
5000 9.81 2.99 0.854

External Document Links

Notes

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