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HCA300-50JB
3" HELIFLEX® Air-Dielectric Coaxial Cable

Rev : C | Rev date : 01 Jan 2018
HELIFLEX® 3" low loss air dielectric cable

FEATURES / BENEFITS

  • Low Attenuation
    The low attenuation of HELIFLEX® coaxial cable results in highly efficient signal transfer in your RF system.
  • Complete Shielding
    The solid outer conductor of HELIFLEX® coaxial cable creates a continuous RFI/EMI shield that minimizes system interference.
  • Low VSWR
    Special low VSWR versions of HELIFLEX® coaxial cables contribute to low system noise.
  • Outstanding Intermodulation Performance
    HELIFLEX® 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, HELIFLEX® 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.


3" HELIFLEX® Air Dielectric Coaxial Cable

External Document Links

Notes

Technical features

Applications

ApplicationsTV & RadioHF DefenseCable Solutions

Structure

Cable TypeAir-Dielectric, Corrugated
Size3
Jacket OptionBlack
Inner Conductor Diameter mm (in)29.3 (1.15)
Inner Conductor MaterialCorrugated Copper Tube
Dielectric Diameter mm (in)63.5 (2.5)
Dielectric MaterialHelical Polyethylene Spacer
Outer Conductor Diameter mm (in)72.4 (2.85)
Outer Conductor MaterialCorrugated Copper
Jacket Diameter mm (in)76 (2.992)
Jacket MaterialPolyethylene, PE, Bitumen Filling

Testing and Environmental

Fire PerformanceHalogene Free
Flame Retardant Jacket SpecificationsMeets the requirements according to: IEC60754-1, IEC60754-2
Installation Temperature °C(°F)-25 to 60 (-13 to 140)
Storage Temperature °C (°F)-70 to 85 (-94 to 185)
Operation Temperature °C(°F)-50 to 85 (-58 to 185)

Electrical Specifications

Impedance Ω50 +/- 0.5
Maximum Frequency GHz1.63
Velocity %96
Capacitance pF/m (pF/ft)66.6 (20.3)
Inductance uH/m (uH/ft)0.167 (0.051)
Peak Power Rating kW640
RF Peak Voltage Volts8000
Jacket Spark Volt RMS8000
Inner Conductor dc Resistance Ω/1000 m (Ω/1000 ft)0.39 (0.12)
Outer Conductor dc Resistance Ω/1000 m (Ω/1000 ft)0.16 (0.05)
Return Loss (VSWR) PerformanceStandard
Min. Return Loss (Max. VSWR)dB (VSWR)Typical 20.8dB (1.2 VSWR) or better within the operation bands of most global frequency ranges. Premium also available. Contact factory for options in your specific frequency band.
Phase StabilizedPhase stabilized and phase matched cables and assemblies are available upon request.
Temperature & PowerStandard

Mechanical Specifications

Cable Weight, Nominal kg/m (lb/ft)2.6 (1.78)
Minimum Bending Radius, Single Bendmm (in)360 (14)
Minimum Bending Radius, Repeated Bendsmm (in)760 (30)
Bending Moment Nm (lb-ft)145 (107)
Tensile Strength N (lb)1800 (405)
Recommended / Maximum Clamp Spacing m (ft)0.8 / 1.2 (2.75 / 4)

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

Frequency, MHzdB per 100mdB per 100ftPower, kW
0.5 0.03 0.01 596
1 0.04 0.01 421
1.5 0.05 0.02 343
2 0.06 0.02 297
10 0.13 0.04 132
20 0.18 0.06 92.30
30 0.22 0.07 74.90
50 0.29 0.09 57.40
88 0.39 0.12 42.80
100 0.42 0.13 40
108 0.44 0.13 38.40
150 0.52 0.16 32.20
174 0.56 0.17 29.80
200 0.61 0.18 27.70
300 0.75 0.23 22.20
400 0.88 0.27 19
450 0.94 0.29 17.80
500 1 0.31 16.80
512 1.01 0.31 16.60
600 1.11 0.34 15.20
700 1.21 0.37 13.90
800 1.30 0.40 13
824 1.33 0.40 12.70
894 1.39 0.42 12.10
900 1.40 0.43 12.10
925 1.42 0.43 11.90
960 1.45 0.44 11.60
1000 1.48 0.45 11.40
1250 1.69 0.52 10
1500 1.88 0.57 9.04
1700 2.03 0.62 8.39