What Is dBm dBmV dBuV And Conversion Table Of dBm dBmV dBuV

dbm dbuv dbmv

Introduction

dB is denoted for Decibel. dB is a ratio of input signal level to the output signal level. It is used for RF devices like Splitters and amplifiers . Input Signal level defined as mV µV nV but these units are having large magnitude. We need to use short units.

These short units are defined as dBm dBmV dBuV.

dbmv dbuv dbm values units

Thus there are two kind of voltages. First is Source Voltage and second is Potential Difference. This potential difference is also called the Voltage Difference.

dBm

dBm gives the signal in miliwatt. This units is used for RF devices which are having resistance of 50 ohm.

dBmV

dBmV gives ths signal in milivolt. This units is used for 75 ohm devices. This device can be Television Receiver. Because this TV receiver have the resistance of 75 ohm.

dBuV

dBuV gives the signal in microvolt. This is very small unit. It is measured in decibel with respect to 1 MicroVolt accross 50 Ohm resistance.

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Conversion Of dBm dBmV dBuV

dBm dBmV dBuV Conversion for different system is mentioned below,

For 50 Ω system,

dBmV = dBm + 47 dB

dBV = dBm – 13 dB

dBuV = dBm + 107 dB

For 75 Ω system,

dBmV = dBm + 48.75 dB

dBV = dBm – 11.25 dB

dBuV = dBm + 108.75 dB

Conversion Table dBm dBmV dBuV

dBuV

dBmV

uV

0

-60

1

1

-59

1.11

2

-58

1.25

3

-57

1.41

4

-56

1.58

5

-55

1.77

6

-54

1.99

7

-53

2.23

8

-52

2.51

9

-51

2.81

10

-50

3.16

11

-49

3.54

12

-48

3.98

13

-47

4.47

14

-46

5.01

15

-45

5.62

16

-44

6.31

17

-43

7.07

18

-42

7.94

19

-41

8.93

dBuV

dBmV

uV

20

-40

10

21

-39

11.22

22

-38

12.5

23

-37

14.13

24

-36

15.85

25

-35

17.78

26

-34

19.95

27

-33

22.39

28

-32

25.12

29

-31

28.18

30

-30

31.62

31

-29

35.48

32

-28

39.81

33

-27

44.67

34

-26

50.12

35

-25

56.23

36

-24

63.1

37

-23

70.79

38

-22

79.43

39

-21

89.13

dBuV

dBmV

uV

40

-20

100

41

-19

112.2

42

-18

125.9

43

-17

141.3

44

-16

158.5

45

-15

177.7

46

-14

199.5

47

-13

223.9

48

-12

251.2

49

-11

281.8

50

-10

316.2

51

-9

354.8

52

-8

398.1

53

-7

446.7

54

-6

501.2

55

-5

562.3

56

-4

631

57

-3

707.9

58

-2

794.3

59

-1

891.3

dBuV

dBmV

mV

60

0

1

61

1

1.12

62

2

1.25

63

3

1.41

64

4

1.58

65

5

1.77

66

6

1.99

67

7

2.23

68

8

2.51

69

9

2.81

70

10

3.16

71

11

3.54

72

12

3.98

73

13

4.46

74

14

5.01

75

15

5.62

76

16

6.31

77

17

7.07

78

18

7.94

79

19

8.91

dBuV

dBmV

mV

80

20

10

81

21

11.22

82

22

12.59

83

23

14.13

84

24

15.85

85

25

17.78

86

26

19.95

87

27

22.39

88

28

25.12

89

29

28.18

90

30

31.62

91

31

35.48

92

32

39.81

93

33

44.67

94

34

50.12

95

35

56.23

96

36

63.1

97

37

707.9

98

38

79.43

99

39

89.13

dBuV

dBmV

mV

100

40

100

101

41

112.2

102

42

125.9

103

43

141.3

104

44

158.5

105

45

177.8

106

46

199.5

107

47

223.9

108

48

251.2

109

49

281.8

110

50

316.2

111

51

354.8

112

52

397.1

113

53

446.7

114

54

501.2

115

55

562.3

116

56

631

117

57

707.9

118

58

794.3

119

59

891.3

dBuV

dBmV

Volts

120

60

1

121

61

1.12

122

62

1.25

123

63

1.41

124

64

1.58

125

65

1.77

126

66

1.99

127

67

2.23

128

68

2.51

129

69

2.81

130

70

3.16

131

71

3.51

132

72

3.98

133

73

4.46

134

74

5.01

135

75

5.62

136

76

6.31

137

77

7.07

138

78

7.94

139

79

8.91

140

80

10

This is all about the dBm dBmV dBuV And Conversion Table Of dBm dBmV dBuV.

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