M
m Letter symbol for the prefix milli-.
M 1. Symbol for mutual inductance. 2. Letter symbol for the prefix mega-, or meg-, meaning one million.
mA Letter symbol for milliampere.
MA Letter symbol for megampere.
MAC-B An acronym for mixed analog component signals, system B. It refers to placing TV sound into the horizontal line-blanking period and then separating the color and luminance for periods of 20 to 40 microseconds each during horizontal scan. In the process, luminance and chroma are compressed during transmission and expanded during reception, enlarging their bandwidths considerably. Transmitted via satellite as FM, this system provides considerably better TV definition and resolution. Its present parameters are within the existing ...
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