8

Dbm-Watts-Volts Conversion Chart

The table below shows the equivalent voltage or wattage of an RF power expressed in dBm for a 50-Ohm system.

dBm

V

Po

dBm

V

Po

DBm

mV

Po

dBm

µV

Po

 

 

 

 

 

 

 

 

 

 

 

 

+53

100.0

200W

0

.225

1.0mW

-49

0.80

 

-98

2.9

 

+50

70.7

100W

-1

.200

.80mW

-50

0.71

.01µW

-99

2.51

 

+49

64.0

80W

-2

.180

.64mW

-51

0.64

 

-100

2.25

.1pW

+48

58.0

64W

-3

.160

.50mW

-52

0.57

 

-101

2.0

 

+47

50.0

50W

-4

.141

.40mW

-53

0.50

 

-102

1.8

 

+46

44.5

40W

-5

.125

.32mW

-54

0.45

 

-103

1.6

 

+45

40.0

32W

-6

.115

.25mW

-55

0.40

 

-104

1.41

 

+44

32.5

25W

-7

.100

.20mW

-56

0.351

 

-105

1.27

 

+43

32.0

20W

-8

.090

.16mW

-57

0.32

 

-106

1.18

 

+42

28.0

16W

-9

.080

.125mW

-58

0.286

 

 

 

 

+41

26.2

12.5W

-10

.071

.10mW

-59

0.251

 

dBm

nV

Po

 

 

 

 

 

 

 

 

 

 

 

 

+40

22.5

10W

-11

.064

 

-60

0.225

.001µW

-107

1000

 

+39

20.0

8W

-12

.058

 

-61

0.200

 

-108

900

 

+38

18.0

6.4W

-13

.050

 

-62

0.180

 

-109

800

 

+37

16.0

5W

-14

.045

 

-63

0.160

 

-110

710

.01pW

+36

14.1

4W

-15

.040

 

-64

0.141

 

-111

640

 

+35

12.5

3.2W

-16

.0355

-112

580

 

 

 

 

+34

11.5

2.5W

 

 

 

dBm

µV Po

-113

500

 

 

 

 

 

 

 

 

 

 

 

 

 

+33

10.0

2W

dBm

mV

Po

-65

128

 

-114

450

 

 

 

 

 

 

 

 

 

 

 

 

 

+32

9.0

1.6W

-17

31.5

 

-66

115

 

-115

400

 

+31

8.0

1.25W

-18

28.5

 

-67

100

 

-116

355

 

+30

7.10

1.0W

-19

25.1

 

-68

90

 

-117

325

 

+29

6.40

800mW

-20

22.5

.01mW

-69

80

 

-118

285

 

+28

5.80

640mW

-21

20.0

 

-70

71

.1nW

-119

251

 

+27

5.00

500mW

-22

17.9

 

-71

65

 

-120

225

.001pW

+26

4.45

400mW

-23

15.9

 

-72

58

 

-121

200

 

+25

4.00

320mW

-24

14.1

 

-73

50

 

-122

180

 

+24

3.55

250mW

-25

12.8

 

-74

45

 

-123

160

 

+23

3.20

200mW

-26

11.5

 

-75

40

 

-124

141

 

+22

2.80

160mW

-27

10.0

 

-76

35

 

-125

128

 

+21

2.52

125mW

-28

8.9

 

-77

32

 

-126

117

 

+20

2.25

100mW

-29

8.0

 

-78

29

 

-127

100

 

+19

2.00

80mW

-30

7.1

.001mW

-79

25

 

-128

90

 

+18

1.80

64mW

-31

6.25

 

-80

22.5

.01nW

-129

80

.1ƒW

+17

1.60

50mW

-32

5.8

 

-81

20.0

 

-130

71

 

+16

1.41

40mW

-33

5.0

 

-82

18.0

 

-131

61

 

+15

1.25

32mW

-34

4.5

 

-83

16.0

 

-132

58

 

+14

1.15

25mW

-35

4.0

 

-84

11.1

 

-133

50

 

+13

1.00

20mW

-36

3.5

 

-85

12.9

 

-134

45

 

GFK-2489

Chapter 8 Technical Reference

8-15

Page 176
Image 176
GE GFK-2489 user manual Dbm-Watts-Volts Conversion Chart, DBm