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Low Loss-400-Flex cable design
constructively cable LL-400-FLex consists of:
– copper stranded central conductor, with a total diameter of 2.74 mm
– internal dielectric made of foamed polyethylene with a diameter of 7,24 mm.
– the first shielding layer made of aluminum foil
– the second shielding layer – braiding of tinned copper with a diameter of 8,13 mm
– Outer protective shell made of thermoplastic polyurethane (TPU), black color with a diameter of 10,16 mm
Electrical characteristics of the LL-400-Flex cable
Wave resistance: 50 ohms
Nominal permissible voltage: 2500 V
Linear capacitance: 78 pF/m
Relative speed: 85%
Shortening factor: 1,17
Shielding efficiency: >90 dB at a frequency of 0...3 GHz
Attenuation table for LL-400-Flex cable
| Frequency, MHz | Attenuation, dB/100m |
| 30 | 3,02 |
| 50 | 3,97 |
| 150 | 6,03 |
| 220 | 7,35 |
| 450 | 11,06 |
| 700 | 13,78 |
| 750 | 14,27 |
| 800 | 14,76 |
| 900 | 15,72 |
| 1500 | 20,75 |
| 1800 | 22,77 |
| 2000 | 24,11 |
| 2500 | 27,11 |
| 5800 | 43,48 |
mechanical characteristics
Minimum bending radius: 25,4 mm
Compatibility and analogues
Coaxial cable LL-400-FLex is part of the G55 cable group and is similar in size to the following widely used types of HF coaxial cables: SLL-400-SF, 9913F, Low Loss 400.
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