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12D-FB

Construction

Inner conductor 

Bare copper/Copper clad aluminium 

Φ4.4 mm 

Dielectric 

Foam /Solid PE 

Φ12.4±0.02 mm 

Shield 

Bonded aluminium foil 

Φ12.6 mm 

Outer conductor 

Tinned copper braid(24x7x0.15mm) 

Φ13.2 mm 

Shield coverage 

 

85%

Sheath 

PVC/PE 

Φ15.6 mm 

Electrical & Mechanical Characteristics

Impedance 

50±3 Ohm 

Nominal capacitance 

83 pF/m 

Velocity of propagation 

81%

Insulation resistance 

>5000 Mohm.Km 

Inner conductor resistance 

1.2(1.8) Ohm/Km 

Outer conductor resistance 

4.5 Ohm/Km 

Operating temperature range 

-40°C - +85 °C 

Min.bending radius 

78

Attenuation

Frequency(MHz) 

Attenuation (dB/100 m) 

Attenuation (dB/100 ft) 

100

2.7

0.8

150

3.6

1

280

4.6

1.4

350

5.2

1.6

400

6

1.7

800

8.5

2.6

900

9.3

2.8

1200

10.8

3.3

1500

12.3

3.7

1800

13.7

4.2

1900

14.2

4.3

2000

14.6

4.5

2200

14.9

4.5

2500

16.6

5.1

 

 

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