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RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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everythingRF RF & Microwave Parts Database (h2) - RF Cafe

RMS: Voltage & Average Power

In mathematics, the root mean square (abbreviated RMS or rms), also known as the quadratic mean, is a statistical measure of the magnitude of a varying quantity. It is especially useful when variates are positive and negative, e.g., sinusoids. It can be calculated for a series of discrete values or for a continuously varying function. The name comes from the fact that it is the square root of the mean of the squares of the values. - Wikipedia

General Equation for RMS Voltage:

RMS (effective) value of any periodic function with period T.

rms equation - RF Cafe

Average of Instantaneous Power:

Average power equation formula - RF Cafe

RMS Equation for a Sine Wave:

RMS & Average Power equation formula - RF Cafe

RMS & Average Power equation formula - RF Cafe , ...for positive or negative half-cycle

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