Propriedades de cabos coaxiais

Características físicas e elétricas - Dimensões, capacitância, atenuação, voltagem e potência máxima aplicáveis a cabos coaxiais.

Dielectric Type
Propagation Velocity (% of c)
  c = speed of light in vacuum
Solid Polyethylene (PE)
Foam Polyethylene (FE)
Foam Polystyrene (FS)
Air Space Polyethylene (ASP)

Solid (ST)
Air Space (AST)
65.9
80.0
80.0
84.0 - 88.0
69.4
85.0 - 90.0
 

 

Power Capacity   (In watts 104°F, 40°C)

MHz: 

30

50

150

220

450

900

1500

2000

LMR-100A

230

180

100

80

60

40

30

25

RG-58U

400

300

160

80

LMR-200

1020

790

450

370

260

180

140

120

RG-59

500

400

250

RG-8X

350

280

150

80

LMR-240

1490

1150

660

540

380

260

200

170

LMR-240 Ultra 

1490

1150

660

540

380

260

200

170

RG-213

1800

1200

620

300

RG-214

1800

1200

620

300

LMR-400

2100

1700

1000

830

550

380

290

250

LMR-400 Ultra 

2100

1700

1000

830

550

380

290

250

9913

2200

1700

900

450

280

200

160

Values indicated are approximate and for comparison purposes only.

Attenuation (dB per 100 feet)

MHz: 

30

50

100

146

150

440

450

1000

2400

RG-174

5.5

6.6

8.8

13.0

25.0

30.0

75.0

LMR-100A

3.9

5.1

8.8

8.9

15.6

15.8

RG-58A/U

2.5

4.1

5.3

6.1

6.1

10.4

10.6

24.0

38.9

LMR-200

1.8

2.3

3.9

4.0

6.9

7.0

16.5

RG-59

2.4

3.5

7.6

12.0

RG-8X

2.0

2.1

3.0

4.5

4.7

8.1

8.6

21.6

LMR-240

1.3

1.7

3.0

3.0

5.2

5.3

12.7

LMR-240 Ultra

1.3

1.7

3.0

3.0

5.2

5.3

12.7

RG-213

1.2

1.6

1.9

2.8

2.8

5.1

5.1

8.0

13.7

RG-214

1.2

1.6

1.9

2.8

2.8

5.1

5.1

8.0

13.7

LMR-400

0.7

0.9

1.5

1.5

2.7

2.7

6.6

LMR-400 Ultra

0.7

0.9

1.5

1.5

2.7

2.7

6.6

9086

1.4

2.8

2.8

9913

0.8

1.5

2.8

7.5

Values indicated are approximate and for comparison purposes only.