22
APPENDIX - dBm CONVERSION
dBm Conversion Chart
dBm dBmV dB
μ
V
μ
V/mV
dBm
dBmV dB
μ
V
μ
V/mV
dBm dBmV dB
μ
V
μ
V/mV
+13
+60
+120
1000 mV
-26
+21
+81
11.2 mV
-64
-17
+43
141
μ
V
+12
+59
+119
891 mV
-27
+20
+80
10.0 mV
-65
-18
+42
126
μ
V
+11
+58
+118
794 mV
-28
+19
+79
8.91 mV
-66
-19
+41
112
μ
V
+10
+57
+117
707 mV
-29
+18
+78
7.94 mV
-67
-20
+40
100
μ
V
+9
+56
+116
631 mV
-30
+17
+77 7079
μ
V
-68
-21
+39
89.1
μ
V
+8
+55
+115
562 mV
-31
+16
+76 6310
μ
V
-69
-22
+38
79.4
μ
V
+7
+54
+114
501 mV
-32
+15
+75
5623 μV
-70
-23
+37
70.7 μV
+6
+53
+113
447 mV
-33
+14
+74
5012 μV
-71
-24
+36
63.1 μV
+5
+52
+112
398 mV
-34
+13
+73
4467 μV
-72
-25
+35
56.2
μV
+4
+51
+111
355 mV
-35
+12
+72
3981 μV
-73
-26
+34
50.1 μV
+3
+50
+110
316 mV
-36
+11
+71
3548 μV
-74
-27
+33
44.7 μV
+2
+49
+109
282 mV
-37
+10
+70
3162 μV
-75
-28
+32
39.8 μV
+1
+48
+108
251 mV
-38
+9
+69
2818 μV
-76
-29
+31
35.5 μV
0
+47
+107
224 mV
-39
+8
+68
2512 μV
-77
-30
+30
31.6 μV
-1
+46
+106
200 mV
-40
+7
+67
2239 μV
-78
-31
+29
28.2 μV
-2
+45
+105
178 mV
-41
+6
+66
1995 μV
-79
-32
+28
25.1 μV
-3
+44
+104
158 mV
-42
+5
+65
1778 μV
-80
-33
+27
22.4 μV
-4
+43
+103
141 mV
-43
+4
+64 158
5 μV
-81
-34
+26
20.0 μV
-5
+42
+102
126 mV
-44
+3
+63
1413 μV
-82
-35
+25
17.8 μV
-6
+41
+101
112 mV
-45
+2
+62
1259 μV
-83
-36
+24
15.8 μV
-7
+40
+100
100 mV
-46
+1
+61
1122 μV
-84
-37
+23
14.1 μV
-8
+39
+99
89.1 mV
-47
0
+60
1000 μV
-85
-38
+22
12.6
μV
-9
+38
+98
79.4 mV
-48
-1
+59
891 μV
-86
-39
+21
11.2 μV
-10
+37
+97
70.7 mV
-49
-2
+58
794 μV
-87
-40
+20
10.0 μV
-11
+36
+96
63.1 mV
-50
-3
+57
707 μV
-88
-41
+19
8.91 μV
-12
+35
+95
56.2 mV
-51
-4
+56
631 μV
-89
-42
+18
7.94 μV
-13
+34
+94
50.1 mV
-52
-5
+55
562 μV
-90
-43
+17
7.07 μV
-14
+33
+93
44.7 mV
-53
-6
+54
501 μV
-91
-44
+16
6.31 μV
-15
+32
+92
39.8 mV
-54
-7
+53
447 μV
-92
-45
+15
5.62 μV
-16
+31
+91
35.5 mV
-55
-8
+52
398 μV
-93
-46
+14
5.01 μV
-17
+30
+90
31.6 mV
-56
-9
+51
355 μ
V
-94
-47
+13
4.47 μV
-18
+29
+89
28.2 mV
-57
-10
+50
316 μV
-95
-48
+12
3.98 μV
-19
+28
+88
25.1 mV
-58
-11
+49
282 μV
-96
-49
+11
3.55 μV
-20
+27
+87
22.4 mV
-59
-12
+48
251 μV
-97
-50
+10
3.16 μV
-21
+26
+86
20.0 mV
-60
-13
+47
224 μV
-98
-51
+9
2.8
2 μV
-22
+25
+85
17.8 mV
-61
-14
+46
200 μV
-99
-52
+8
2.51 μV
-23
+24
+84
15.8 mV
-62
-15
+45
178 μV
-100
-53
+7
2.24 μV
-24
+23
+83
14.1 mV
-63
-16
+44
158 μV
-25
+22
+82
12.6 mV
The most common measurement of RF signal levels is in
dBm where 0 dBm equals 1 milliwatt across 50 ohms (224
mV). The Models 2615A, 2620A, 2625, and 2630 read
signal level in dBm.
Some users measure signal level in dBmV where 0 dB
equals 1 millivolt, in dB
μV where 0 dB equals 1 micro
-
volt, or directly in millivolts or microvolts. The following
table provides conversion from dB to other measurement
schemes.
Содержание 2165A
Страница 1: ...INSTRUCTION MANUAL SPECTRUM ANALYZERS MODELS 2165A 2620A 2625 2630 ...
Страница 3: ...3 Instruction Manual for Models 2615A 2620A 2625 2630 SPECTRUM ANALYZERS ...
Страница 21: ...21 Introduction to Spectrum Analysis Fig 7 Block Diagram ...
Страница 26: ...26 NOTES ...
Страница 27: ...27 ...
Страница 28: ...28 22820 Savi Ranch Parkway Yorba Linda CA 92887 v110409 Printed in China ...