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decibel [2011/06/30 08:55]
ramonturner
decibel [2011/07/11 23:17] (current)
admin
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 40 dB attenuation indicates 0.0001 of the input power survives\\ 40 dB attenuation indicates 0.0001 of the input power survives\\
 It should also be mentioned that often dB ratios are expressed using a third letter (or letters), such as dBm. The third letter is a reference level for the log operation. In our dBm example, dBm is used to define dB levels in a 50 Ohm RF system, using a 1 milliwatt reference level. It should also be mentioned that often dB ratios are expressed using a third letter (or letters), such as dBm. The third letter is a reference level for the log operation. In our dBm example, dBm is used to define dB levels in a 50 Ohm RF system, using a 1 milliwatt reference level.
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decibel.txt ยท Last modified: 2011/07/11 23:17 by admin