maximum keying frequency

maximum keying frequency

[′mak·sə·məm ′kē·iŋ ‚frē·kwən·sē]
(electronics)
In facsimile, the frequency in hertz that is numerically equal to the spot speed divided by twice the horizontal dimension of the spot.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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