Cable Velocity Factor and Loss Data
(per 100 feet)

TYPE

VF

LOSS @
10 MHz

LOSS @
50 MHz

LOSS @
100 MHz

LOSS @
400 MHz

LOSS @
700 MHz

RG-6/U PE (Belden 8215)

66.0

0.8

1.9

2.7

5.9

8.1

RG-6/U Foam (Belden 9290)

81.0

0.7

1.7

2.5

5.3

7.2

RG-8/U (PE (Belden 8237)

66.0

0.6

1.3

1.9

4.2

5.9

RG-8/U Foam (Belden 8214)

78.0

0.5

1.2

1.7

3.9

5.6

RG-8/U (Belden 9913)

84.0

0.5

1.0

1.4

3.4

5.0

RG-8X (Belden 9258)

82.0

0.9

2.1

3.1

6.6

9.1

RG-11/U Foam HDPE (Beld. 9292)

84.0

0.5

0.9

1.3

2.3

3.3

RG-58/U PE (Belden 9201)

66.0

1.1

2.5

3.8

8.4

11.7

RG-58A/U Foam (Belden 8219)

73.0

1.3

3.1

4.5

10.0

14.2

RG-59A/U PE (Belden 8241)

66.0

1.1

2.4

3.4

7.0

9.7

RG-59A/U Foam (Belden 8241F)

78.0

0.9

2.1

3.0

6.6

8.9

RG-174 PE (Belden 8216)

66.0

3.3

5.8

8.4

19

27

RG-174 Foam (Belden 7805R)

73.5


4.6


14.0 (450)

20.9 (900)

RG-213/U (Belden 8267)

66.0

0.6

1.3

1.9

4.1

6.5








LMR-240

84.0

0.8

1.7

2.5

5.0

6.6

LMR-240UF

84.0

0.9

2.1

2.9

6.0

8.0

LMR-400

85.0

0.4

0.9

1.2

2.5

3.4

LMR-400UF

85.0

0.5

1.0

1.5

3.0

4.1








Davis BuryFlex

82.0

0.5

1.1

1.5

2.9

3.8


(Sources: Belden Catalog, Times Microwave LMR catalog; Davis RF web site; ERI catalog)


Dielectric Type

ns/foot

VF

Solid Polyethylene (PE)

1.54

65.9

Foam Polyethylene (FE)

1.27

80

Foam Polystyrene (FS)

1.12

91

Air Space Polyethylene (ASP)

1.15-1.21

84-88

Solid Teflon (ST)

1.46

69.4

Air Space Teflon (AST)

1.13-1.20

85-90

(Source: http://www.rfcafe.com/references/electrical/coax-chart.htm)