dBm Watts Volts, 50 ohms Noise Temperature dBW Jansky Notes 0

dBm
Watts
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19
-20
-21
-22
-23
-24
-25
-26
-27
-28
-29
-30
-31
-32
-33
-34
-35
-36
-37
-38
-39
-40
-41
-42
-43
-44
1.0E-3
794.3E-6
631.0E-6
501.2E-6
398.1E-6
316.2E-6
251.2E-6
199.5E-6
158.5E-6
125.9E-6
100.0E-6
79.4E-6
63.1E-6
50.1E-6
39.8E-6
31.6E-6
25.1E-6
20.0E-6
15.8E-6
12.6E-6
10.0E-6
7.9E-6
6.3E-6
5.0E-6
4.0E-6
3.2E-6
2.5E-6
2.0E-6
1.6E-6
1.3E-6
1.0E-6
794.3E-9
631.0E-9
501.2E-9
398.1E-9
316.2E-9
251.2E-9
199.5E-9
158.5E-9
125.9E-9
100.0E-9
79.4E-9
63.1E-9
50.1E-9
39.8E-9
Volts,
Noise
dBW
50 ohms Temperature
223.6E-3
72.5E+18
-30
199.3E-3
57.6E+18
-31
177.6E-3
45.7E+18
-32
158.3E-3
36.3E+18
-33
141.1E-3
28.8E+18
-34
125.7E-3
22.9E+18
-35
112.1E-3
18.2E+18
-36
99.9E-3
14.5E+18
-37
89.0E-3
11.5E+18
-38
79.3E-3
9.1E+18
-39
70.7E-3
7.2E+18
-40
63.0E-3
5.8E+18
-41
56.2E-3
4.6E+18
-42
50.1E-3
3.6E+18
-43
44.6E-3
2.9E+18
-44
39.8E-3
2.3E+18
-45
35.4E-3
1.8E+18
-46
31.6E-3
1.4E+18
-47
28.2E-3
1.1E+18
-48
25.1E-3
912.3E+15
-49
22.4E-3
724.6E+15
-50
19.9E-3
575.6E+15
-51
17.8E-3
457.2E+15
-52
15.8E-3
363.2E+15
-53
14.1E-3
288.5E+15
-54
12.6E-3
229.2E+15
-55
11.2E-3
182.0E+15
-56
10.0E-3
144.6E+15
-57
8.9E-3
114.8E+15
-58
7.9E-3
91.2E+15
-59
7.1E-3
72.5E+15
-60
6.3E-3
57.6E+15
-61
5.6E-3
45.7E+15
-62
5.0E-3
36.3E+15
-63
4.5E-3
28.8E+15
-64
4.0E-3
22.9E+15
-65
3.5E-3
18.2E+15
-66
3.2E-3
14.5E+15
-67
2.8E-3
11.5E+15
-68
2.5E-3
9.1E+15
-69
2.2E-3
7.2E+15
-70
2.0E-3
5.8E+15
-71
1.8E-3
4.6E+15
-72
1.6E-3
3.6E+15
-73
1.4E-3
2.9E+15
-74
Radio Astronomy Units
Jansky
Notes
100.0E+21
79.4E+21
63.1E+21
50.1E+21
39.8E+21
31.6E+21
25.1E+21
20.0E+21
15.8E+21
12.6E+21
10.0E+21
7.9E+21
6.3E+21
5.0E+21
4.0E+21
3.2E+21
2.5E+21
2.0E+21
1.6E+21
1.3E+21
1.0E+21
794.3E+18
631.0E+18
501.2E+18
398.1E+18
316.2E+18
251.2E+18
199.5E+18
158.5E+18
125.9E+18
100.0E+18
79.4E+18
63.1E+18
50.1E+18
39.8E+18
31.6E+18
25.1E+18
20.0E+18
15.8E+18
12.6E+18
10.0E+18
7.9E+18
6.3E+18
5.0E+18
4.0E+18
Page 1 of 6
WA9ONY
dBm
Watts
-45
-46
-47
-48
-49
-50
-51
-52
-53
-54
-55
-56
-57
-58
-59
-60
-61
-62
-63
-64
-65
-66
-67
-68
-69
-70
-71
-72
-73
-74
-75
-76
-77
-78
-79
-80
-81
-82
-83
-84
-85
-86
-87
-88
-89
31.6E-9
25.1E-9
20.0E-9
15.8E-9
12.6E-9
10.0E-9
7.9E-9
6.3E-9
5.0E-9
4.0E-9
3.2E-9
2.5E-9
2.0E-9
1.6E-9
1.3E-9
1.0E-9
794.3E-12
631.0E-12
501.2E-12
398.1E-12
316.2E-12
251.2E-12
199.5E-12
158.5E-12
125.9E-12
100.0E-12
79.4E-12
63.1E-12
50.1E-12
39.8E-12
31.6E-12
25.1E-12
20.0E-12
15.8E-12
12.6E-12
10.0E-12
7.9E-12
6.3E-12
5.0E-12
4.0E-12
3.2E-12
2.5E-12
2.0E-12
1.6E-12
1.3E-12
Volts,
Noise
dBW
50 ohms Temperature
1.3E-3
2.3E+15
-75
1.1E-3
1.8E+15
-76
998.8E-6
1.4E+15
-77
890.2E-6
1.1E+15
-78
793.4E-6
912.3E+12
-79
707.1E-6
724.6E+12
-80
630.2E-6
575.6E+12
-81
561.7E-6
457.2E+12
-82
500.6E-6
363.2E+12
-83
446.2E-6
288.5E+12
-84
397.6E-6
229.2E+12
-85
354.4E-6
182.0E+12
-86
315.9E-6
144.6E+12
-87
281.5E-6
114.8E+12
-88
250.9E-6
91.2E+12
-89
223.6E-6
72.5E+12
-90
199.3E-6
57.6E+12
-91
177.6E-6
45.7E+12
-92
158.3E-6
36.3E+12
-93
141.1E-6
28.8E+12
-94
125.7E-6
22.9E+12
-95
112.1E-6
18.2E+12
-96
99.9E-6
14.5E+12
-97
89.0E-6
11.5E+12
-98
79.3E-6
9.1E+12
-99
70.7E-6
7.2E+12 -100
63.0E-6
5.8E+12 -101
56.2E-6
4.6E+12 -102
50.1E-6
3.6E+12 -103
44.6E-6
2.9E+12 -104
39.8E-6
2.3E+12 -105
35.4E-6
1.8E+12 -106
31.6E-6
1.4E+12 -107
28.2E-6
1.1E+12 -108
25.1E-6
912.3E+9 -109
22.4E-6
724.6E+9 -110
19.9E-6
575.6E+9 -111
17.8E-6
457.2E+9 -112
15.8E-6
363.2E+9 -113
14.1E-6
288.5E+9 -114
12.6E-6
229.2E+9 -115
11.2E-6
182.0E+9 -116
10.0E-6
144.6E+9 -117
8.9E-6
114.8E+9 -118
7.9E-6
91.2E+9 -119
Radio Astronomy Units
Jansky
Notes
3.2E+18
2.5E+18
2.0E+18
1.6E+18
1.3E+18
1.0E+18
794.3E+15
631.0E+15
501.2E+15
398.1E+15
316.2E+15
251.2E+15
199.5E+15
158.5E+15
125.9E+15
100.0E+15
79.4E+15
63.1E+15
50.1E+15
39.8E+15
31.6E+15
25.1E+15
20.0E+15
15.8E+15
12.6E+15
10.0E+15
7.9E+15
6.3E+15
5.0E+15
4.0E+15
3.2E+15
2.5E+15
2.0E+15
1.6E+15
1.3E+15
1.0E+15
794.3E+12
631.0E+12
501.2E+12
398.1E+12
316.2E+12
251.2E+12
199.5E+12
158.5E+12
125.9E+12
Page 2 of 6
WA9ONY
dBm
Watts
-90
-91
-92
-93
-94
-95
-96
-97
-98
-99
-100
-101
-102
-103
-104
-105
-106
-107
-108
-109
-110
-111
-112
-113
-114
-115
-116
-117
-118
-119
-120
-121
-122
-123
-124
-125
-126
-127
-128
-129
-130
-131
-132
-133
-134
1.0E-12
794.3E-15
631.0E-15
501.2E-15
398.1E-15
316.2E-15
251.2E-15
199.5E-15
158.5E-15
125.9E-15
100.0E-15
79.4E-15
63.1E-15
50.1E-15
39.8E-15
31.6E-15
25.1E-15
20.0E-15
15.8E-15
12.6E-15
10.0E-15
7.9E-15
6.3E-15
5.0E-15
4.0E-15
3.2E-15
2.5E-15
2.0E-15
1.6E-15
1.3E-15
1.0E-15
794.3E-18
631.0E-18
501.2E-18
398.1E-18
316.2E-18
251.2E-18
199.5E-18
158.5E-18
125.9E-18
100.0E-18
79.4E-18
63.1E-18
50.1E-18
39.8E-18
Volts,
Noise
dBW
50 ohms Temperature
7.1E-6
72.5E+9 -120
6.3E-6
57.6E+9 -121
5.6E-6
45.7E+9 -122
5.0E-6
36.3E+9 -123
4.5E-6
28.8E+9 -124
4.0E-6
22.9E+9 -125
3.5E-6
18.2E+9 -126
3.2E-6
14.5E+9 -127
2.8E-6
11.5E+9 -128
2.5E-6
9.1E+9 -129
2.2E-6
7.2E+9 -130
2.0E-6
5.8E+9 -131
1.8E-6
4.6E+9 -132
1.6E-6
3.6E+9 -133
1.4E-6
2.9E+9 -134
1.3E-6
2.3E+9 -135
1.1E-6
1.8E+9 -136
998.8E-9
1.4E+9 -137
890.2E-9
1.1E+9 -138
793.4E-9
912.3E+6 -139
707.1E-9
724.6E+6 -140
630.2E-9
575.6E+6 -141
561.7E-9
457.2E+6 -142
500.6E-9
363.2E+6 -143
446.2E-9
288.5E+6 -144
397.6E-9
229.2E+6 -145
354.4E-9
182.0E+6 -146
315.9E-9
144.6E+6 -147
281.5E-9
114.8E+6 -148
250.9E-9
91.2E+6 -149
223.6E-9
72.5E+6 -150
199.3E-9
57.6E+6 -151
177.6E-9
45.7E+6 -152
158.3E-9
36.3E+6 -153
141.1E-9
28.8E+6 -154
125.7E-9
22.9E+6 -155
112.1E-9
18.2E+6 -156
99.9E-9
14.5E+6 -157
89.0E-9
11.5E+6 -158
79.3E-9
9.1E+6 -159
70.7E-9
7.2E+6 -160
63.0E-9
5.8E+6 -161
56.2E-9
4.6E+6 -162
50.1E-9
3.6E+6 -163
44.6E-9
2.9E+6 -164
Radio Astronomy Units
Jansky
Notes
100.0E+12
79.4E+12
63.1E+12
50.1E+12
39.8E+12
31.6E+12
25.1E+12
20.0E+12
15.8E+12
12.6E+12
10.0E+12
7.9E+12
6.3E+12
5.0E+12
4.0E+12
3.2E+12
2.5E+12
2.0E+12
1.6E+12
1.3E+12
1.0E+12
794.3E+9
631.0E+9
501.2E+9
398.1E+9
316.2E+9
251.2E+9
199.5E+9
158.5E+9
125.9E+9
100.0E+9
79.4E+9
63.1E+9
50.1E+9
39.8E+9
31.6E+9
25.1E+9
20.0E+9
15.8E+9
12.6E+9
10.0E+9
7.9E+9
6.3E+9
5.0E+9
4.0E+9
Page 3 of 6
WA9ONY
dBm
Watts
-135
-136
-137
-138
-139
-140
-141
-142
-143
-144
-145
-146
-147
-148
-149
-150
-151
-152
-153
-154
-155
-156
-157
-158
-159
-160
-161
-162
-163
-164
-165
-166
-167
-168
-169
-170
-171
-172
-173
-174
-175
-176
-177
-178
-179
31.6E-18
25.1E-18
20.0E-18
15.8E-18
12.6E-18
10.0E-18
7.9E-18
6.3E-18
5.0E-18
4.0E-18
3.2E-18
2.5E-18
2.0E-18
1.6E-18
1.3E-18
1.0E-18
794.3E-21
631.0E-21
501.2E-21
398.1E-21
316.2E-21
251.2E-21
199.5E-21
158.5E-21
125.9E-21
100.0E-21
79.4E-21
63.1E-21
50.1E-21
39.8E-21
31.6E-21
25.1E-21
20.0E-21
15.8E-21
12.6E-21
10.0E-21
7.9E-21
6.3E-21
5.0E-21
4.0E-21
3.2E-21
2.5E-21
2.0E-21
1.6E-21
1.3E-21
Volts,
Noise
dBW
50 ohms Temperature
39.8E-9
2.3E+6 -165
35.4E-9
1.8E+6 -166
31.6E-9
1.4E+6 -167
28.2E-9
1.1E+6 -168
25.1E-9
912.3E+3 -169
22.4E-9
724.6E+3 -170
19.9E-9
575.6E+3 -171
17.8E-9
457.2E+3 -172
15.8E-9
363.2E+3 -173
14.1E-9
288.5E+3 -174
12.6E-9
229.2E+3 -175
11.2E-9
182.0E+3 -176
10.0E-9
144.6E+3 -177
8.9E-9
114.8E+3 -178
7.9E-9
91.2E+3 -179
7.1E-9
72.5E+3 -180
6.3E-9
57.6E+3 -181
5.6E-9
45.7E+3 -182
5.0E-9
36.3E+3 -183
4.5E-9
28.8E+3 -184
4.0E-9
22.9E+3 -185
3.5E-9
18.2E+3 -186
3.2E-9
14.5E+3 -187
2.8E-9
11.5E+3 -188
2.5E-9
9.1E+3 -189
2.2E-9
7.2E+3 -190
2.0E-9
5.8E+3 -191
1.8E-9
4.6E+3 -192
1.6E-9
3.6E+3 -193
1.4E-9
2.9E+3 -194
1.3E-9
2.3E+3 -195
1.1E-9
1.8E+3 -196
998.8E-12
1.4E+3 -197
890.2E-12
1.1E+3 -198
793.4E-12
912.3E+0 -199
707.1E-12
724.6E+0 -200
630.2E-12
575.6E+0 -201
561.7E-12
457.2E+0 -202
500.6E-12
363.2E+0 -203
446.2E-12
288.5E+0 -204
397.6E-12
229.2E+0 -205
354.4E-12
182.0E+0 -206
315.9E-12
144.6E+0 -207
281.5E-12
114.8E+0 -208
250.9E-12
91.2E+0 -209
Radio Astronomy Units
Jansky
3.2E+9
2.5E+9
2.0E+9
1.6E+9
1.3E+9
1.0E+9
794.3E+6
631.0E+6
501.2E+6
398.1E+6
316.2E+6
251.2E+6
199.5E+6
158.5E+6
125.9E+6
100.0E+6
79.4E+6
63.1E+6
50.1E+6
39.8E+6
31.6E+6
25.1E+6
20.0E+6
15.8E+6
12.6E+6
10.0E+6
7.9E+6
6.3E+6
5.0E+6
4.0E+6
3.2E+6
2.5E+6
2.0E+6
1.6E+6
1.3E+6
1.0E+6
794.3E+3
631.0E+3
501.2E+3
398.1E+3
316.2E+3
251.2E+3
199.5E+3
158.5E+3
125.9E+3
Page 4 of 6
Notes
Room Temperature 290 K
WA9ONY
dBm
Watts
-180
-181
-182
-183
-184
-185
-186
-187
-188
-189
-190
-191
-192
-193
-194
-195
-196
-197
-198
-199
-200
-201
-202
-203
-204
-205
-206
-207
-208
-209
-210
-211
-212
-213
-214
-215
-216
-217
-218
-219
-220
-221
-222
-223
-224
1.0E-21
794.3E-24
631.0E-24
501.2E-24
398.1E-24
316.2E-24
251.2E-24
199.5E-24
158.5E-24
125.9E-24
100.0E-24
79.4E-24
63.1E-24
50.1E-24
39.8E-24
31.6E-24
25.1E-24
20.0E-24
15.8E-24
12.6E-24
10.0E-24
7.9E-24
6.3E-24
5.0E-24
4.0E-24
3.2E-24
2.5E-24
2.0E-24
1.6E-24
1.3E-24
1.0E-24
794.3E-27
631.0E-27
501.2E-27
398.1E-27
316.2E-27
251.2E-27
199.5E-27
158.5E-27
125.9E-27
100.0E-27
79.4E-27
63.1E-27
50.1E-27
39.8E-27
Volts,
Noise
dBW
50 ohms Temperature
223.6E-12
72.5E+0 -210
199.3E-12
57.6E+0 -211
177.6E-12
45.7E+0 -212
158.3E-12
36.3E+0 -213
141.1E-12
28.8E+0 -214
125.7E-12
22.9E+0 -215
112.1E-12
18.2E+0 -216
99.9E-12
14.5E+0 -217
89.0E-12
11.5E+0 -218
79.3E-12
9.1E+0 -219
70.7E-12
7.2E+0 -220
63.0E-12
5.8E+0 -221
56.2E-12
4.6E+0 -222
50.1E-12
3.6E+0 -223
44.6E-12
2.9E+0 -224
39.8E-12
2.3E+0 -225
35.4E-12
1.8E+0 -226
31.6E-12
1.4E+0 -227
28.2E-12
1.1E+0 -228
25.1E-12
912.3E-3 -229
22.4E-12
724.6E-3 -230
19.9E-12
575.6E-3 -231
17.8E-12
457.2E-3 -232
15.8E-12
363.2E-3 -233
14.1E-12
288.5E-3 -234
12.6E-12
229.2E-3 -235
11.2E-12
182.0E-3 -236
10.0E-12
144.6E-3 -237
8.9E-12
114.8E-3 -238
7.9E-12
91.2E-3 -239
7.1E-12
72.5E-3 -240
6.3E-12
57.6E-3 -241
5.6E-12
45.7E-3 -242
5.0E-12
36.3E-3 -243
4.5E-12
28.8E-3 -244
4.0E-12
22.9E-3 -245
3.5E-12
18.2E-3 -246
3.2E-12
14.5E-3 -247
2.8E-12
11.5E-3 -248
2.5E-12
9.1E-3 -249
2.2E-12
7.2E-3 -250
2.0E-12
5.8E-3 -251
1.8E-12
4.6E-3 -252
1.6E-12
3.6E-3 -253
1.4E-12
2.9E-3 -254
Radio Astronomy Units
Jansky
100.0E+3
79.4E+3
63.1E+3
50.1E+3
39.8E+3
31.6E+3
25.1E+3
20.0E+3
15.8E+3
12.6E+3
10.0E+3
7.9E+3
6.3E+3
5.0E+3
4.0E+3
3.2E+3
2.5E+3
2.0E+3
1.6E+3
1.3E+3
1.0E+3
794.3E+0
631.0E+0
501.2E+0
398.1E+0
316.2E+0
251.2E+0
199.5E+0
158.5E+0
125.9E+0
100.0E+0
79.4E+0
63.1E+0
50.1E+0
39.8E+0
31.6E+0
25.1E+0
20.0E+0
15.8E+0
12.6E+0
10.0E+0
7.9E+0
6.3E+0
5.0E+0
4.0E+0
Page 5 of 6
Notes
Quiet Sun
WA9ONY
dBm
Watts
-225
-226
-227
-228
-229
-230
31.6E-27
25.1E-27
20.0E-27
15.8E-27
12.6E-27
10.0E-27
Volts,
Noise
dBW
50 ohms Temperature
1.3E-12
2.3E-3 -255
1.1E-12
1.8E-3 -256
998.8E-15
1.4E-3 -257
890.2E-15
1.1E-3 -258
793.4E-15
912.3E-6 -259
707.1E-15
724.6E-6 -260
Radio Astronomy Units
Jansky
Notes
3.2E+0
2.5E+0
2.0E+0
1.6E+0
1.3E+0
1.0E+0
Page 6 of 6
WA9ONY