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Transcript
ï Let us summarize our procedure for finding decibel equivalents. ï 1-For any ratio A of voltages or currents, express the number in factors of two and ten If the number is not exactly factorable into twos and tens, bracket between the next lower and higher numbers that are factorable into twos and tens. ï 2-Add 6 db for every factor of two in the numerator and 20 db for every factor of ten. Subtract 6 db for every factor of two in the denominator and 20 db for every factor of ten. ï 3-Interpolate, if necessary, to obtain the decibel equivalent. ï 4-When dealing with a power ratio G, proceed as in steps 1 to 3 but -divide the result by 2 to obtain Gdb.
