Dbm-Watts-Volts Conversion Chart - GE MDS SD Series Technical Manual

MDS 05-4846A01, Rev. H

8.6 dBm-Watts-Volts Conversion Chart

Table 20 is provided as a convenience for determining the equivalent
wattage or voltage of an RF power expressed in dBm.
Table 20. dBm-Watts-Volts Conversion—for 50 Ohm Systems
dBm V Po dBm V
+53 100.0 200W 0
+50 70.7 100W -1
+49 64.0 80W -2
+48 58.0 64W -3
+47 50.0 50W -4
+46 44.5 40W -5
+45 40.0 32W -6
+44 32.5 25W -7
+43 32.0 20W -8
+42 28.0 16W -9
+41 26.2 12.5W -10
+40 22.5 10W -11
+39 20.0 8W -12
+38 18.0 6.4W -13
+37 16.0 5W -14
+36 14.1 4W -15
+35 12.5 3.2W -16
+34 11.5 2.5W
+33 10.0 2W dBm mV
+32 9.0 1.6W
-17
+31 8.0 1.25W
-18
+30 7.10 1.0W
-19
+29 6.40 800mW
-20
+28 5.80 640mW
-21
+27 5.00 500mW
-22
+26 4.45 400mW
-23
+25 4.00 320mW
-24
+24 3.55 250mW
-25
+23 3.20 200mW
-26
+22 2.80 160mW
-27
+21 2.52 125mW
-28
+20 2.25 100mW
-29
+19 2.00 80mW
-30
+18 1.80 64mW
-31
+17 1.60 50mW
-32
+16 1.41 40mW
-33
+15 1.25 32mW
-34
+14 1.15 25mW
-35
+13 1.00 20mW
-36
+12 .90 16mW
-37
+11 .80 12.5mW
-38
+10 .71 10mW
-39
+9 .64 8mW
-40
+8 .58 6.4mW
-41
+7 .500 5mW
-42
+6 .445 4mW
-43
+5 .400 3.2mW
-44
+4 .355 2.5mW
-45
+3 .320 2.0mW
-46
+2 .280 1.6mW
-47
+1 .252 1.25mW
-48
SD Series Technical Manual
Po dBm mV
.225 1.0mW -49 0.80
.200 .80mW -50 0.71
.180 .64mW -51 0.64
.160 .50mW -52 0.57
.141 .40mW -53 0.50
.125 .32mW -54 0.45
.115 .25mW -55 0.40
.100 .20mW -56 0.351
.090 .16mW -57 0.32
.080 .125mW -58 0.286
.071 .10mW -59 0.251
.064 -60 0.225 .001µW
.058 -61 0.200
.050 -62 0.180
.045 -63 0.160
.040 -64 0.141
.0355
dBm µV
Po
-65 128
31.5 -66 115
28.5 -67 100
25.1 -68 90
22.5 .01mW -69 80
20.0 -70 71
17.9 -71 65
15.9 -72 58
14.1 -73 50
12.8 -74 45
11.5 -75 40
10.0 -76 35
8.9 -77 32
8.0 -78 29
7.1 .001mW -79 25
6.25 -80 22.5
5.8 -81 20.0
5.0 -82 18.0
4.5 -83 16.0
4.0 -84 11.1
3.5 -85 12.9
3.2 -86 11.5
2.85 -87 10.0
2.5 -88 9.0
2.25 .1µW -89 8.0
2.0 -90 7.1
1.8 -91 6.1
1.6 -92 5.75
1.4 -93 5.0
1.25 -94 4.5
1.18 -95 4.0
1.00 -96 3.51
0.90 -97 3.2
Po dBm µV Po
-98 2.9
.01µW -99 2.51
-100 2.25 .1pW
-101 2.0
-102 1.8
-103 1.6
-104 1.41
-105 1.27
-106 1.18
dBm nV Po
-107 1000
-108 900
-109 800
-110 710 .01pW
-111 640
-112 580
Po
-113 500
-114 450
-115 400
-116 355
-117 325
-118 285
.1nW -119 251
-120 225 .001pW
-121 200
-122 180
-123 160
-124 141
-125 128
-126 117
-127 100
-128 90
.01nW -129 80 .1ƒW
-130 71
-131 61
-132 58
-133 50
-134 45
-135 40
-136 35
-137 33
-138 29
.001nW -139 25
-140 23 .01ƒW
103