Page 168 - NACE_Catalog_2021

dB Conversion Chart
Fiber Optic Equipment

mV dBmV dBm mV dBmV dBm mV dBmV dBm mV dBmV dBm
0.0010 -60 -108.75 0.0631 -24 -72.75 3.9811 12 -36.75 223.8721 47 -1.75

0.0011 -59 -107.75 0.0708 -23 -71.75 4.4668 13 -35.75 251.1886 48 -0.75
0.0013 -58 -106.75 0.0794 -22 -70.75 5.0119 14 -34.75 273.8420 48.75 0
0.0014 -57 -105.75 0.0891 -21 -69.75 5.6234 15 -33.75 281.8383 49 0.25

0.0016 -56 -104.75 0.1000 -20 -68.75 6.3096 16 -32.75 316.2278 50 1.25
0.0018 -55 -103.75 0.1120 -19 -67.75 7.0795 17 -31.75 354.8134 51 2.25
0.0020 -54 -102.75 0.1259 -18 -66.75 7.9433 18 -30.75 398.1072 52 3.25
0.0022 -53 -101.75 0.1413 -17 -65.75 8.9125 19 -29.75 446.6836 53 4.25
0.0025 -52 -100.75 0.1586 -16 -64.75 10.0000 20 -28.75 501.1872 54 5.25

0.0028 -51 -99.75 0.1778 -15 -63.75 11.2202 21 -27.75 562.3413 55 6.25
0.0032 -50 -98.75 0.1995 -14 -62.75 12.5893 22 -26.75 630.9573 56 7.25
0.0035 -49 -97.75 0.2239 -13 -61.75 14.1254 23 -25.75 707.9458 57 8.25

0.0040 -48 -96.75 0.2512 -12 -60.75 15.8489 24 -24.75 794.3282 58 9.25
0.0045 -47 -95.75 0.2818 -11 -59.75 17.7828 25 -23.75 891.2509 59 10.25
0.0050 -46 -94.75 0.3162 -10 -58.75 19.9526 26 -22.75 1000.0000 60 11.25
0.0056 -45 -93.75 0.3548 -9 -57.75 22.3872 27 -21.75 1122.0185 61 12.25
0.0063 -44 -92.75 0.3981 -8 -56.75 25.1189 28 -20.75 1258.9254 62 13.25

0.0071 -43 -91.75 0.4467 -7 -55.75 28.1838 29 -19.75 1412.5375 63 14.25
0.0079 -42 -90.75 0.5012 -6 -54.75 31.6228 30 -18.75 1584.8932 64 15.25
0.0089 -41 -89.75 0.5623 -5 -53.75 35.4813 31 -17.75 1778.2794 65 16.25

0.0100 -40 -88.75 0.6310 -4 -52.75 29.8107 32 -16.75 1995.2623 66 17.25
0.0112 -39 -87.75 0.7079 -3 -51.75 44.6684 33 -15.75 2238.7211 67 18.25
0.0126 -38 -86.75 0.7943 -2 -50.75 50.1187 34 -14.75 2511.8864 68 19.25
0.0141 -37 -85.75 0.8913 -1 -49.75 56.2341 35 -13.75 2818.3829 69 20.25
0.0158 -36 -84.75 1.0000 0 -48.75 63.0957 36 -12.75 3162.2777 70 21.25

0.0178 -35 -83.75 1.1220 1 -47.75 70.7946 37 -11.75 3548.1339 71 22.25
0.0200 -34 -82.75 1.2589 2 -46.75 79.4328 38 -10.75 3981.0717 72 23.25
0.0224 -33 -81.75 1.4125 3 -45.75 89.1251 39 -9.75 4466.8359 73 24.25

0.0251 -32 -80.75 1.5849 4 -44.75 100.0000 40 -8.75 5011.8723 74 25.25
0.0282 -31 -79.75 1.7783 5 -43.75 112.2018 41 -7.75 5623.4133 75 26.25
0.0316 -30 -78.75 1.9953 6 -42.75 125.8925 42 -6.75 6309.5734 76 27.25
0.0355 -29 -77.75 2.2387 7 -41.75 141.2538 43 -5.75 7079.4578 77 28.25
0.0398 -28 -76.75 2.5119 8 -40.75 158.4893 44 -4.75 7943.2823 78 29.25

0.0447 -27 -75.75 2.8184 9 -39.75 177.8279 45 -3.75 8912.5094 79 30.25
0.0501 -26 -74.75 3.1623 10 -38.75 199.5262 46 -2.75 10000.0000 80 31.25
0.0562 -25 -73.75 3.5481 11 -37.75 - - - - - -

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