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H
H
Hat
HCF
HD
HDM
Hex
HF
HLL
Hog
HOL
Hop
HSM
HUS
Hz
Halftone Characteristic
  • In facsimile systems, a relationship between the density of the recorded copy and the density of the original copy.
  • Note: The term may also be used to relate the amplitude of the facsimile signal to the density of the original copy or the record copy when only a portion of the system is under consideration. In a frequency modulation system, an appropriate parameter is to be used instead of the amplitude. See also facsimile.