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RL836-75
8-3/16" Flanged Rigid Line

Rev : 01 | Rev date : 21 Jun 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".
8-3/16" flanged rigid line is a 75-ohm rigid coaxial transmission line, and is ideal for outdoor or indoor connections between RF broadcasting equipment.

 

FEATURES / BENEFITS

  • Inner and outer conductors are made from the highest purity copper (99.95% for inner, 99.9% for outer) for minimum attenuation and lowest operating temperature.
  • Manufactured from hard drawn copper, milled to exact dimensions to ensure strict compliance with specifications and stable characteristic impedance.
  • All spacers/insulators are of virgin PTFE for highest physical and electrical insulation properties.
  • The outer conductor is painted for a high quality long lasting finish, which also aids in heat dissipation.
  • Swivel flange on one end for ease of assembly.
  • Suitable for pressurised systems.


8 3/16" Flanged Rigid Line

Technical features

Structure

Product LineRigid Line
Product TypeFlanged rigid line
Size8-3/16"
Feeder TypeRigid coaxial transmission line (flanged)
Outer Conductor MaterialC110000 Copper, 99.9% pure
Outer Conductor OD mm (in)207 (8.15)
Outer Conductor ID mm (in)203.2 (8)
Inner Conductor MaterialC102000 Copper, 99.95% pure
Inner Conductor OD mm (in)58.2 (2.29)
Inner Conductor ID mm (in)56.8 (2.236)
Dielectric MaterialAir, with PTFE spacers

Electrical Specifications

Maximum Frequency MHz698
ImpedanceΩ75 +/- 0.5
Relative Propagation Velocity%99.8
Peak Power Rating kW3682
RF Peak VoltagekV23.5

Mechanical Specifications

Weight (5.5m or 18ft length) kg (lb)84 (185)
FinishAcrylic paint
Recommended clamp spacing m (ft)2 (6.5)

Ordering Information

Standard Lengths mm (ft)2750, 5500 (9, 18) [Note 2]

Environmental Specifications

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

Attenuation and Power Rating

Frequency, MHzAttenuation, dB/ 100 ftAttenuation, dB/ 100 mAverage Power kW
(Note 1)
500.02270.075376.3
880.03100.102283.6
980.03260.107268.8
1080.03400.112256.0
1500.03950.130217.3
1740.04290.141201.7
2020.04660.153187.2
2400.05120.168171.8
3000.05790.190153.6
4000.06540.215133.0
4700.07090.233122.7
5000.07310.240119.0
5200.07450.245116.7
6000.08010.263108.6
6650.08430.276103.2
6980.08700.285100.7

Attenuation at 20°C (68°F)
Mean power rating at 40°C (104°F) ambient temperature
Note 1. Outer temp rise 23°C (73°F), Inner temp rise 60°C (140°F). Dry Air, Sea Level Atmospheric Pressure, VSWR 1.0
Note 2. Custom lengths are available on request (175mm is the standard shortest for standard connections)

Elbows

Elbow Model NoRL836-75-EL (m-m)RL836-75-ELX (m-f)RL836-75-EL (m-f)
Elbow Type8-3/16" Flanged Elbow - male (reinforced)8-3/16" Flanged Elbow Extended - male - female (reinforced)8-3/16" Flanged Elbow - male - female (reinforced)
Elbow Weightkg (lb)19.0 (41.9)20 (44)17.5 (38.6)

Accessories

Accessory Model NoRL836-75-FHSAD836-NRL836-75-IJKRL836-SHR
Accessory DescriptionFlange Adaptor - Hard Solder8-3/16"-Type N 75-50ohm transformer/adaptorEIA Inner Joining KitSuspension Hanger
Accessory Weight kg (lb)3.8 (8.4)9 (19.8)3 (6.6)1.6 (3.5)

External Document Links