feeder cable

Germany RFS 7/8″ Feeder

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SKU: FC-Feeder-cable-RFS-7/8 Categories: , ,

Germany RFS 7/8 Feeder is a coaxial cable with high flexibility and its outer conductor made from corrugated copper and also its inner conductor is a copper tube. Ultra Low Attenuation of the cable results in extremly efficient signal transfer in your RF system, especially at high frequencies. VSWR of the cable contribute to low system noise. Solid inner and outer conductors of the feeder virtually eliminate intermods.

Applications :

  • Main feed line
  • Feed-lines for broadcast and terrestrial microwave antennas, wireless cellular, PCS and ESMR base stations, cabling of antenna arrays, and radio equipment interconnects.

  • High quality and excellent performances
  • Low attenuation
  • Complete Shielding for minimizing system interference
  • Low VSWR
  • Outstanding Intermodulation Performance
  • High Power Rating
Technical Specifications
Construction Specifications
Inner conductor Copper tube
Dielectric Foam Polyethylene
Outer Conductor Corrugated Copper
Jacket Polyethylene, PE
Physical Dimensions
Inner conductor diameter 9.23mm
Dielectric diameter 22.4 mm
Outer Conductor diameter 25.2 mm
Jacket Diameter 27.8 mm
Electrical Specifications
Capacitance 74 pF/m
Impedance 50±1 ohms
Inductance 0.185 μH/m
Relative propagation velocity 90
Max. operating frequency 5 G
Jacket spark test RMS 8000 V
Dc break down voltage 9.0 KV
Peak power rating 85 KW
RF Peak voltage rating 2920 V
VSWR Performance 24 (1.135)
Insulation resistance > 5×103MΩ/km
DC-resistance inner conductor 1.54 Ω/km
DC-resistance outer conductor 1.55 Ω/km
Mechanical & Environmental Specifications
Weight, approximately 0.41 kg/m
Minimum bending radius, single bending 120 mm
Minimum bending radius, repeated bending 250 mm
Bending moment 13 Nm
Max. tensile force 1440 N
Recommended / maximum clamp spacing 0.8 / 1 m
Storage temperature -70 C to +85
Installation Temperature -40 C to+60
Operation temperature -50 C to+85
Attenuation & Average Power
Power kW Attenuation dB/100ft Attenuation dB/100m Frequency
MHz
85.0 0.0238 0.0780 0.5
 63.7 0.0476 0.156 2.0
28.3 0.107 0.351 10
20.0 0.152 0.498 20
  16.2 0.186 0.612 30
12.5 0.242 0.793 50
8.80 0.345 1.13 100
7.15 0.425 1.39 150
6.14 0.493 1.62 200
4.97 0.608 2.0 300
4.28 0.707 2.32 400
4.02 0.753 2.47 450
3.81 0.796 2.61 500
3.45 0.876 2.88 600
3.19 0.951 3.12 700
2.97 1.02 3.35 800
2.78 1.09 3.57 900
2.63 1.15 3.78 1000
1.91 1.59 5.21 1800
1.59 1.91 6.25 2500
1.56 1.95 6.39 2600
1.52 1.99 6.53 2700
 1.43 2.11 6.93 3000
1.22 2.49 8.16 4000
1.07 2.83 9.28 5000

Attenuation at 20°C (68°F) cable temperature
Mean power rating at 40°C (104°F) ambient temperature

 

 

 

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