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Trunk coaxial cable FinMark, series 540
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3

Symbolic designation

Description

Cable weight, kg/km

Shipping weight, kg/km

QR 540 JCA

Copper-clad aluminum central conductor, outer conductor in the form of solid rod, polyethylene jacket.

137

190

QR 540 JCAM109

Self-carrying aerial cable with wire in the form of 8.

196

257

Cable elements dimensions:

Element

mm

Central conductor nominal diameter, mm

3.15

Nominal diameter with dielectric

13.03

Nominal diameter with outer conductor

13.72

Nominal thickness of outer conductor

0.343

Nominal diameter with jacket

15.49

Jacket wall nominal thickness

0.89

Steel wire diameter (for version with wire)

2.77

Mechanical characteristics:

  • Minimal bending radius: 10.2 cm;
  • Maximal tensile force: 100 kgf;
  • Minimal wire breaking strength: 816 kgf.
  • Capacity, nF/km: 50 ± 3.0;
  • Wave resistance, Ohm: 75 ± 2;
  • Propagation velocity, %: 88.

Electrical characteristics:

Maximal resistance to direct current (at 20°C):

Copper-clad

Inner conductor

3.34 Ohm/km

Outer conductor

1.94 Ohm/km

Loop resistance

5.28 Ohm/km

All-copper

Inner conductor

2.20 Ohm/km

Outer conductor

1.94 Ohm/km

Loop resistance

4.14 Ohm/km

Attenuation (at 20°C):

Frequency, MHz

Nominal, dB/100 m

Maximal, dB/100 m

5

0.43

0.46

30

1.12

1.12

45

1.35

1.35

50

1.41

1.44

55

1.48

1.54

83

1.80

1.90

108

2.07

2.17

150

2.43

2.59

181

2.76

2.89

193

2.85

2.95

211

2.99

3.12

220

3.05

3.22

250

3.25

3.38

270

3.38

3.51

300

3.54

3.71

325

3.71

3.87

350

3.84

4.03

375

4.00

4.17

400

4.13

4.33

425

4.27

4.49

450

4.44

4.59

500

4.63

4.89

550

4.95

5.12

600

5.23

5.38

750

5.92

6.07

865

6.23

6.56

1000

6.91

7.12

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