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RFF 1/2″-50 cable design
Structurally, the RFF 1/2″-50 cable (feeder) consists of:
- central conductor: diameter 3,6 mm
- dielectric: foamed polyethylene with a diameter of 9 mm
- outer conductor: corrugated copper tube with a diameter of 11,9 mm
- protective shell: black, halogen-free polyethylene, 13,5 mm in diameter.
Electrical characteristics of RFF 1/2″-50 cable
Wave resistance: 50±1 Ohm
Linear capacitance: 81,4 pF/m
Relative speed: 82%
Maximum frequency: 12500 MHz
Peak working HF voltage: 1,4 kV
Peak working power: 19 kW
Direct current resistance:
– internal conductor: 2,65 Ohm/km
– external conductor: 3,39 Ohm / km.
Frequency characteristics of RFF 1/2″-50 cable
| Frequency, MHz | Attenuation, dB/100m | Power, kW |
| 25 | 1,55 | 5,3 |
| 88 | 2,94 | 2,7 |
| 144 | 3,79 | 2,1 |
| 174 | 4,18 | 1,9 |
| 400 | 6,48 | 1,2 |
| 800 | 9,38 | 0,85 |
| 900 | 10 | 0,79 |
| 1800 | 14,7 | 0,54 |
| 2000 | 15,5 | 0,51 |
| 2400 | 17,2 | 0,46 |
| 5800 | 29 | 0,27 |
| 7000 | 32 | 0,24 |
| 8000 | 35 | 0,22 |
| 9000 | 38 | 0,21 |
| 12400 | 46 | 0,17 |
Mechanical characteristics of RFF 1/2″-50 cable
Linear weight: 0,18 kg/m
Maximum tension force: 900 N
Minimum bending radius, single: 15 mm
Minimum bending radius, repeated: 30 mm
Operating temperature range: -55...+85° C
Resistance to damage: 3,40 kg/mm
Bending moment: 3 Nm
Recommended distance between fasteners: 1 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 |
| RFF 1/2″-50 | 500 m | 114 сm | 55 сm | 43 kg | 156 kg |
Technical characteristics of the coaxial cable 1/2″ NKRFF01200
1/2″ Coaxial Cable Transportation and Storage Instructions NKRFF01200
Sample passport of the drum with individual parameters of factory testing NKRFF01200
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