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M17/128-RG400 (RG 400/U)
Construction
| Inner conductor | Silver plated copper | 19x0.20mm |
| Dielectric | Solid PTFE | Φ2.95±0.05mm |
| Outer conductor(shield1) | Silver plated copper | 112x0.13mm |
| Shield coverage | 95% | |
| Outer conductor(shield2) | Silver plated copper | 112x0.13mm |
| Shield coverage | 94% | |
| Sheath | FEP | Φ4.90±0.13mm |
Electrical & Mechanical Characteristics
Impedance :50±3Ohm
Nominal capacitance :94pF/m
Velocity of propagation :70%
Insulation resistance :>2000Mohm.Km
Inner conductor resistance :12.6Ohm/Km
Outer conductor resistance :7.5Ohm/Km
Test/Operatig Voltage(max) :5.0KV/1.9KV
Operating temperature range :-55°C-+200°C
Copper weight :46Kg/Km
Cable weight(approx.) :64Kg/Km
Screening effectiveness :80dB
Attenuation
| Frequency(MHz) | Attenuation(dB/100m) | Attenuation(dB/100ft) |
| 50 | 8.5 | 2.59 |
| 100 | 12.5 | 3.81 |
| 200 | 17.7 | 5.4 |
| 400 | 25.9 | 7.9 |
| 900 | 40.4 | 12.32 |
| 1000 | 43 | 13.11 |
| 2000 | 63.3 | 19.3 |
| 3000 | 79.4 | 24.21 |
| 5000 | 107 | 32.62 |
| 8000 | 141.7 | 43.2 |
Return Loss
| 30-300MHz | >28dB |
| 300-600MHz | >25dB |
| 600-900MHz | >22dB |