RL78 Series
Rigid Line Components 7/8” 50 ohm

RFS rigid line components are available for both unpressurized (indoor) and pressurized, flanged (outdoor) systems. ;
Sizes available are 7/8", 1-5/8", 3-1/8", 4-1/2", 4-7/8", 6-1/8" and 7-3/16�.
All components are manufactured to the most exacting tolerances.
Other line sizes are available on special order.

FEATURES / BENEFITS

Line inner and outer tubing is of high conductivity, hard-drawn, copper, milled to exact dimensions. Unflanged components for indoor use are polished and sprayed with a clear lacquer to maintain a high lustre finish
Flanges and mitred elbow joints are TIG welded for maximum strength
Captive PTFE dielectric insulators are used exclusively in lines and elbows to ensure precision mating and stability of components after assembly
All inner conductor connectors are silver plated
All components conform to the relevant EIA or IEC standards

Thumbnail Image

Technical features

Structure
Product Line		Components
Product Type		Copper Rigid Line Components 7/8" 50 ohm
Size		7/8
Feeder Type		Air Dielectric, solid inner and outer PTFE spacers
Conductor Material		High conductivity copper tube
Outer Conductor OD	mm (in)	22.2 (0.875)
Outer Conductor ID	mm (in)	19.94 (0.785)
Inner Conductor OD	mm (in)	8.68 (0.342)
Inner Conductor ID	mm (in)	7.39 (0.291)

Electrical Specifications
Frequency Range	MHz	50 - 862
Frequency Band		VHF Band I, VHF Band II, VHF Band III, UHF Band IV/V
Impedance, ohms	Ω	50 +/- 0.5
Velocity	%	99,8
Peak Power Rating	kW	78
RF Peak Voltage, Volts	V	2500
Part number EIA Flanged RL		35,73
Length EIA Flanged RL	mm	3
Isolation	dB	32
Output Power Split	dB	3 +/- 0.15 Note#2
Output Phase	degrees	90 +/- 1 Note#2

Mechanical Specifications
Weight	kg/m (lb/ft)	0.9 (0.6)
Flange Weight	kg (lb)	0.2 (0.4)
Flange Standard		EIA
Standard lengths	m (ft)	3 (9.8)
Max. indoor clamp spacing	m (ft)	1.2 (4)
Max. exterior clamp spacing	m (ft)	1 (3)

Ordering Information
Length Unflanged RL	m	3
Part number Unflanged RL		35,83


Attenuation at 20°C (68°F) cable temperature Mean power rating at 40°C (104°F) ambient temperature #1 Outer temp rise 23°C (73°F), Inner temp rise 80°C (176°F) #2 Outer temp rise 30°C (86°F), Inner temp rise 100°C (212°F) Applying a dark matt finish will reduce max temp rises.

Image 3