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Symbol rate
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<p>In a digitally <a href="/facts/Modulated/aAXPjINv">modulated</a> signal or a <a href="/facts/Line_code/x9IuaYNL">line code</a>, symbol rate, modulation rate or baud is the number of symbol changes, waveform changes, or signaling events across the transmission medium per <a href="/facts/Unit_of_time/L9ShSGBv">unit of time</a>. The symbol rate is measured in <i><a href="/facts/Baud/uCsmXrdT">baud</a></i> (Bd) or <i>symbols per second</i>. In the case of a line code, the symbol rate is the pulse rate in pulses per second. Each symbol can represent or convey one or several <a href="/facts/Bit/RwfjaYSv">bits</a> of data. The symbol rate is related to the <i><a href="/facts/Gross_bit_rate/ppUNMmVd">gross bit rate</a></i>, expressed in <i><a href="/facts/Bits_per_second/Nv9VoT7T">bits per second</a></i>. </p>