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amateurradio:signal_strength

Signal strength

Base-10 logarithms: log10 x

log10๐‘ฅ=๐‘ฆ โ†” 10๐‘ฆ=๐‘ฅ

dB as a power ratio - The decibel (dB) is a logarithmic unit used to express the ratio of two values of a physical quantity. For power ratios the decibel unit is defined as follows:

๐ฟ๐‘‘๐ต=10*log10(๐‘ƒ๐‘œ๐‘ข๐‘ก/๐‘ƒ๐‘–๐‘›)

dB as a field amplitude ratio - For intensity ratios the decibel unit is defined as follows:

๐บ๐‘‘๐ต=20*log10(๐ด๐‘œ๐‘ข๐‘ก/๐ด๐‘–๐‘›)

amateurradio/signal_strength.txt ยท Last modified: 2018/09/20 21:53 by tplecko