Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym HDB3 is...

HDB3 is

  • High-Density Bipolar Three-Bit substitution

HDB3 is also in:

Acronym Definition Searched: 82723 HTA RGU RAVE BCHM OTBD BRD 4WW 25637 CALC 48370 KEY VIF 564 NDAC