< Back

RF LLF 7/8" Hiflex

Variant:

Low loss highly 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 wher RF signals normally cannot be received. The highly flexible design makes the product the best solution for installations which requires small bending radius. The combination of extra flexibility and low loss makes this product the natural choice for most applications in RF networks. Attenuation values, nominal (max. 105%)

Construction

Conductor 
Helical
Corrugated copper tube
9.40 ± 0.20 [mm]
Dielectricum 
Cellular PE
22.20 ± 0.30 [mm]
Screen 
Corrugated Cu tube
24.90 ± 0.30
Jacket 
Black
SHF1
O.D. 
27.50 ± 0.20 [mm]
Weight 
430 [kg/km]
Jacket marking 
NEK Kabel – RF LLF 7/8" Hiflex – SHF1 – DNV –
DD/MM/YY – <batch no.> – ****m

Specifications

Operating temperature normal 
-40 to +70 [°C]
Temperature flexible 
-20 [°C]
Screen resistance 
1,3 [Ω/km]
Recommended clamp spacing 
1 [m]
Peak RF voltage 
2,8 [kV]
Characteristic impedance 
50 ± 2 Ω
Conductor resistance 
2.5 [Ω/km]
Capacitance 
74 [pF/m]
Velocity factor 
0,88
Min. bending radius 
90 [mm]
Min. bending radius flexible 
120 [mm]

Norms

Halogenfree, max content corrosive and toxic gases 
IEC 60754-1 & IEC 60754-2
Material properties, insulation and sheath 
IEC 60092-360 (359)
SHF1
3582
Design and testing standards 
IEC 60096-0-1 Ed 3
IEC 61196-1-100
Flame resistance 
IEC 60332-3-22 Cat.A
Weather resistant 
ASTM G 154
Smoke emission 
IEC 61034
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
Certification 
DNV
Part No. 
1028855
NEK offers connectors for RF LLF 7/8"Hiflex: 
Male part no. 65439 and Female part no. 65411

Attenuation and Power rating

Frequency [MHz] Nominal attenuation [dB/100m] max. 105% Power rating [kW]
10 <0,37 24
30 <0,63 14
50 <0,86 11
174 <1,64 5,6
200 <1,8 5,2
500 <2,89 3,2
800 <3,72 2,5
900 <4.00 2,3
960 <4,11 2,2
1600 <5,47 1,7
1800 <6,00 1,6
2000 <6,38 1,5
2200 <6,56 1,4
2400 <7,10 1,3
2600 <7,23 1,3
2800 <7,55 1,2
3000 <7,87 1,2
3400 <8,48 1,1
4000 <9,32 0,98
5000 <10,95 0,86

Updated

Date Rev. Description
18.04.16 1
27.11.2017 2 Update norms
27.09.2019 3 Corr. approvals