Low loss flexible feeder cable designed for broadband transmission from sources like radio antennas, radars, GPS devices,
mobile phone antennas to distribution systems inside ships, tunnels, buildings and underground areas where RF signals normally
cannot be received.
Construction
Conductor
Cu-tube
9.45 ± 0.10 [mm]
Dielectricum
Cellular PE
23.20 ± 0.30 [mm]
Screen
Corrugated Cu tube
25.40 ± 0.30 [mm]
Jacket
Black or grey
SHF1
UV-resistant
O.D.
28.5 ± 0.40 [mm]
Weight
450 [kg/km]
Jacket marking
NEK Kabel – RF LLF 7/8" 50 SHF1 – DNV – DD/MM/YYYY – <batch no.> – ****m
Specifications
Operating temperature normal
-40 – +70 [°C]
Temperature @ installation
-5 – +50 [°C]
Screen resistance
<1.6 [Ω/km]
Recommended clamp spacing
1 [m]
Peak RF voltage
3.3 [kV]
Peak power rating
92.0 [kW]
Characteristic impedance
50 ± 2 [Ω]
Conductor resistance
1.30 [Ω/km]
Frequency
Max
5,000
MHz
Tensile strength
1440
[N]
Capacitance
74.2 [pF/m]
Velocity factor
0.88
Min. bending radius
150 [mm]
Min. bending radius flexible
275 [mm]
Norms
Halogenfree, max content corrosive and toxic gases
IEC 60754-1 & IEC 60754-2
Material properties, insulation and sheath
IEC 60092-360, -359
Design and testing standards
IEC 60096-0-1 Ed 3
IEC 61196-1-100
Flame resistance
IEC 60332-3-22 Cat.A
, IEC 60332-3-24 Cat.C
Flame retardant
IEC 60332-1-2
Weather resistant
ASTM G 154
Smoke emission
IEC 61034-1 & IEC 61034-2
Oil and fuel resistant
IEC 60811-2-1 Mineral Oils, IRM 902: 23ºC / 7 days, 70°C / 4h Diesel, IRM 903: 23ºC / 7 days, 70°C / 4h
UV-resistant
ASTM G 154
CPR classification
Dca-s1,d2,a1
Certification
DNV
Part No.
Black: 1028851 Grey: 1028858
NEK offers connectors for RF LLF 7/8": Male part no. 65437 and Female part no. 65427
Attenuation nominal, max 105%
| Frequency MHz | Attenuation dB/100m |
|---|---|
| 150 | 1.44 |
| 450 | 2.95 |
| 800 | 3.56 |
| 900 | 3.79 |
| 1800 | 5.59 |
| 2000 | 5.95 |
| 2200 | 6.30 |
| 2400 | 6.62 |
| 2500 | 6.77 |
| 2700 | 7.07 |
| 3000 | 7.52 |
| 5000 | 9.26 |
VSWR
| Frequency [MHz] | - |
|---|---|
| 320 – 480 | 1.09 |
| 820 –960 | 1.11 |
| 1700 – 1880 | 1.09 |
| 1880 – 2180 | 1.10 |
| 2300 – 2500 | 1.10 |
| 2500 – 2700 | 1.13 |
Updated
| Date | Rev. | Description |
|---|---|---|
| 13.04.2016 | 1 | Attenuation values |
| 14.10.2016 | 2 | Minor changes physical data (BS) |
| 25.11.2016 | 3 | Fire class. |
| 13.09.2017 | 4 | Update outer diam. |
| 10.10.2017 | 5 | Update screen resistance |
| 27.11.2017 | 6 | Update norms |
| 27.09.2019 | 7 | Corr. approvals |
| 01.07.2022 | 8 | corr. prod.no from 1092496 to 1028851 |
| 24.04.2024 | 9 | Attenuation and VSWR |
