dBm - volts - watts conversion(dbm mv w转换表)

搞RF的同学一定会需要这张表,因为很多RF器件的规格中的输入都是用dbm做参数的,但我们通常只能用示波器或者万用表得到电压值,通过以下的对应关系你就可以基本得到相应的功率单位了

      System: 50 ohm  
mVpp mVp mV(RMS) uV(RMS) dBmV dBuV mW dBm
2.00E-04 1.00E-04 7.07E-05 0.07 -83.01 -23.01 1.00E-13 -130.00
5.00E-04 2.50E-04 1.77E-04 0.18 -75.05 -15.05 6.25E-13 -122.04
1.00E-03 5.00E-04 3.54E-04 0.35 -69.03 -9.03 2.50E-12 -116.02
1.00E-02 0.01 0.00 3.54E+00 -49.03 10.97 2.50E-10 -96.02
1.00E-01 0.05 0.04 3.54E+01 -29.03 30.97 2.50E-08 -76.02
1.00E+00 0.50 0.35 3.54E+02 -9.03 50.97 2.50E-06 -56.02
10.00 5.00 3.54 3.54E+03 10.97 70.97 2.50E-04 -36.02
20.00 10.00 7.07 7.07E+03 16.99 76.99 1.00E-03 -30.00
50.00 25.00 17.68 1.77E+04 24.95 84.95 6.25E-03 -22.04
100.00 50.00 35.36 3.54E+04 30.97 90.97 2.50E-02 -16.02
200.00 100.00 70.71 7.07E+04 36.99 96.99 0.10 -10.00
300.00 150.00 106.07 1.06E+05 40.51 100.51 0.23 -6.48
400.00 200.00 141.42 1.41E+05 43.01 103.01 0.40 -3.98
500.00 250.00 176.78 1.77E+05 44.95 104.95 0.63 -2.04
1000.00 500.00 353.55 3.54E+05 50.97 110.97 2.50 3.98
1100.00 550.00 388.91 3.89E+05 51.80 111.80 3.03 4.81
1200.00 600.00 424.26 4.24E+05 52.55 112.55 3.60 5.56
1300.00 650.00 459.62 4.60E+05 53.25 113.25 4.23 6.26
1400.00 700.00 494.97 4.95E+05 53.89 113.89 4.90 6.90
1500.00 750.00 530.33 5.30E+05 54.49 114.49 5.63 7.50
2000.00 1000.00 707.11 7.07E+05 56.99 116.99 10.00 10.00
2500.00 1250.00 883.88 8.84E+05 58.93 118.93 15.63 11.94
3000.00 1500.00 1060.66 1.06E+06 60.51 120.51 22.50 13.52
3500.00 1750.00 1237.44 1.24E+06 61.85 121.85 30.63 14.86
4000.00 2000.00 1414.21 1.41E+06 63.01 123.01 40.00 16.02
5000.00 2500.00 1767.77 1.77E+06 64.95 124.95 62.50 17.96
6000.00 3000.00 2121.32 2.12E+06 66.53 126.53 90.00 19.54
7000.00 3500.00 2474.87 2.47E+06 67.87 127.87 122.50 20.88
8000.00 4000.00 2828.43 2.83E+06 69.03 129.03 160.00 22.04
9000.00 4500.00 3181.98 3.18E+06 70.05 130.05 202.50 23.06
10000.00 5000.00 3535.53 3.54E+06 70.97 130.97 250.00 23.98
11000.00 5500.00 3889.09 3.89E+06 71.80 131.80 302.50 24.81
12000.00 6000.00 4242.64 4.24E+06 72.55 132.55 360.00 25.56
13000.00 6500.00 4596.19 4.60E+06 73.25 133.25 422.50 26.26
14000.00 7000.00 4949.75 4.95E+06 73.89 133.89 490.00 26.90
15000.00 7500.00 5303.30 5.30E+06 74.49 134.49 562.50 27.50
16000.00 8000.00 5656.85 5.66E+06 75.05 135.05 640.00 28.06
17000.00 8500.00 6010.41 6.01E+06 75.58 135.58 722.50 28.59
18000.00 9000.00 6363.96 6.36E+06 76.07 136.07 810.00 29.08
19000.00 9500.00 6717.51 6.72E+06 76.54 136.54 902.50 29.55
20000.00 10000.00 7071.07 7.07E+06 76.99 136.99 1000.00 30.00

另附:

dBm - volts - watts conversion(dbm mv w转换表)_第1张图片

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