3-1/8’’ 50 ohm Coaxial Cable

Materials and Dimensions

Inner conductor-helicat corrugated copper

34.7 mm / 1.366 in

Dialectric Material

Helical Polyethylene Spacer

Outer conductor- corrugated copper tube

85.4 mm / 3.362 in

Diameter over outer jacket- polythylene black

91.0 mm / 3.582 in

Mechanical Specifications

Cable Weight

3.538 kg/m, 2.377 lb/ft

Tensile Strength

1800 N | 405 lbs.

Min. Bending Radius (single)

380 mm | 14.960 in

Min. Bending Radius (repeated)

1100 mm | 43.307 in

Number of bends, minimum (typical)

15 

Recommended Hanger Spacing

.914 m | 3 ft.

Environmental Specifications

Installation Temperature

-40°C to +60°C

Operating Temperature

-45°C to +85°C

Storage Temperature

-70°C to +85°C

2002/95/EC (RoHS)

compliant

VSWR

Voltage Stand Wave Radio

≤1.01:1 @ 500 kHz to 240 MHz

≤1.07:1 @ 241 to 570 MHz

≤1.08:1 @ 571 to 1000 MHz

Electrical Specifications

Impedance

50 ± 0.5 Ω

Relative Velocity of Propogation

96%

Capacitance (1kHz)

70 pF/m

Maximum Operating Frequency

1.66 GHz

Peak Power Rating

940 kW

Inner Conductor DC Resistance

0.428 Ω / m

Outer Conductor DC Resistance

0.12 Ω / m

DC Breakdown Voltage

15000 V

Jacket Spark Test Voltage

8000 Vrms

Attenuation

Frequenxy (MHz)

Attenuation (dB/100m)

Average Power (kW)

.5

0.03

794

1

0.04

562

20

0.15

124

30

0.18

102

80

0..33

58.3

100

0.36

54.5

150

0.45

44.1

450

0.80

25.2

824

1.14

18.7

900

1.18

18.0

1000

1.25

17.1

Ordering Information

Part Number

Description

UOM

AAT-HC318-AC

3 1/8” 50 ohm Air Coaxial Cable

Per Ft.