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RL158-50ALU
1-5/8" Unflanged Rigid Line (Aluminium outer conductor)

Rev : 03 | Rev date : 11 Aug 2022

RFS manufactures a range of unflanged and flanged rigid coaxial transmission lines and accessories to meet all commonly used EIA/IEC standards from 1-5/8" to 8-3/16".
1-5/8" unflanged rigid line is a 50-ohm rigid coaxial transmission line, and is ideal for indoor connections between RF broadcasting equipment.

 

FEATURES / BENEFITS

  • Inner conductor is of the highest purity copper (99.95%) for minimum attenuation and lowest operating temperature.
  • Elbow spigots and couplings are of silver plated brass for high conductivity
  • Outer conductor is made from lightweight aluminium, easy to cut and install
  • Materials are milled to exact dimensions to ensure strict compliance with specifications and stable characteristic impedance.

 


1-5/8" Unflanged Rigid Line

Technical features

Structure

Product LineRigid Line
Product TypeUnflanged rigid line (Aluminium outer conductor)
Size1-5/8"
Feeder TypeRigid coaxial transmission line (unflanged)
Outer Conductor Material6060-T8 Aluminium
Outer Conductor OD mm (in)41.28 (1.625)
Outer Conductor ID mm (in)38.79 (1.527)
Inner Conductor MaterialC102000 Copper, 99.95% pure
Inner Conductor OD mm (in)16.87 (0.664)
Inner Conductor ID mm (in)14.94 (0.588)

Electrical Specifications

Maximum Frequency MHz3000
ImpedanceΩ50 +/- 0.5
Relative Propagation Velocity%99.8
Peak Power Rating kW220
RF Peak VoltagekV4.7

Mechanical Specifications

Weight kg/m (lb/ft)0.86 (0.58)
FinishNatural
Recommended clamp spacing m (ft)2 (6)

Ordering Information

Standard Lengths mm (ft)2750, 5500 (9, 18) [Note 3]

Environmental Specifications

Ambient Temperature Range °C(°F)-40 to + 60 (-40 to 140)
Humidity95%, non condensing

Attenuation and Power Rating

Frequency, MHzAttenuation, dB/ 100mAttenuation, dB/ 100ftAverage Power kW
(Note 1)
Average Power kW
(Note 2)
500.450.13622.129.6
880.590.18016.622.3
980.620.19015.821.1
1080.650.20015.020.1
1500.770.23512.717.1
1740.830.25311.815.8
2020.900.27311.014.7
2400.980.29810.113.5
3001.090.3339.012.1
4001.260.3847.810.5
4701.370.4167.29.6
5001.410.4297.09.3
5201.440.4386.89.2
6001.540.4706.48.5
6651.620.4956.08.1
7191.690.5155.87.8
8001.780.5435.57.4
8201.800.5505.47.3
8621.850.5645.37.1

Attenuation at 20°C (68°F)
Mean power rating at 40°C (104°F) ambient temperature
Note 1. Outer temp rise 24°C (75°F), Inner temp rise 65°C (149°F)
Note 2. Outer temp rise 30°C (86°F), Inner temp rise 85°C (185°F)
Note 3. Custom lengths are available on request

Elbows

Elbow Model NoRL158-50ALU-ELRL158-50ALU-ELT
Elbow TypeNon-tuneableTuneable
VSWR 0-862 MHz1.025:11.014:1
Elbow Weightkg (lb)0.37 (0.82)0.39 (0.86)

Accessories

Accessory Model NoRF158-50ALU-STRRL158-50AL-FLARL158-50-SHRRL158-50-IJKAD16U-N
Accessory DescriptionStraight Coupling - Inner & OuterFlange Adaptor - Clamp TypeSuspension HangerEIA Inner Joining Kit1-5/8" u/f - Type N Adaptor
Accessory Weight kg (lb)0.10 (0.22)0.18 (0.40)1.0 (2.2)0.17 (0.37)0.81 (1.79)