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RFA 1 1/4″-50 cable design
Structurally, the RFA 1 1/4″ cable consists of:
- central conductor: copper tube with a diameter of 13 mm
- dielectric: foamed polyethylene with a diameter of 32.2 mm
- outer conductor: corrugated copper tube with a diameter of 35.8 mm
- black polyethylene, halogen-free, resistant to ultraviolet radiation
Electrical characteristics of the RFA 1 1/4″-50 cable
Wave resistance: 50±1 Ohm
Linear capacitance: 75 pF/m
Relative speed: 88%
Shortening factor: 1.1
Maximum frequency: 3500 MHz
Peak working HF voltage: 4,6 kV
Peak working power: 211,2 kW
Direct current resistance:
– Inner conductor: 0,74 Ohm/km
– Outer conductor: 0,65 ohms/km
Frequency characteristics of the RFA 1 1/4″-50 cable
| Frequency, MHz | Attenuation, dB/100m | Power, kW |
| 174 | 1,10 | 9,2 |
| 450 | 1,83 | 5,5 |
| 800 | 2,53 | 3,9 |
| 900 | 2,70 | 3,7 |
| 1800 | 4,03 | 2,5 |
| 2000 | 4,29 | 2,3 |
| 2400 | 4,79 | 2,1 |
| 3300 | 5,81 | 1,7 |
Mechanical specifications of RFA 1 1/4″-50 cable
Linear weight: 0.89 kg/m
Minimum bending radius, single: 200 mm
Minimum bending radius, repeated: 350 mm
Operating temperature range: -55...+80° C
Resistance to damage: 2,6 kg/mm
Bending moment: 48,7 Nm
Recommended distance between fasteners: 1,5 m
Weight and dimensions of the drum:
| Cable type | The length of the cable on the drum | Outer diameter of the drum | Drum width | Weight of empty drum | Weight of drum with cable |
| RFA 1 1/4″ | 600 m | 204 сm | 74 сm | 157 kg | 735 kg |
1 1/4″ NKRFA11400 Coaxial Cable Specification
1 1/4″ Coaxial Cable Transportation and Storage Instructions NKRFA11400
Sample passport of the drum with individual parameters of factory testing NKRFA11400
Sanych -
For a long time I was looking for a coaxial cable that would meet all the requirements that the boss had. It turned out to please, so now I will be a regular client of Selteq and I will be happy to recommend to friends! Yes, and the managers here are sensible and friendly, they found everything in 5 minutes.