Locksmith dictionary . 2014.
keying conference — n. a meeting of the and user and the keying system supplier at which the keying and levels of keying, including future expansion, are determined and specified … Locksmith dictionary
Amplitude-shift keying — (ASK) is a form of modulation that represents digital data as variations in the amplitude of a carrier wave.The amplitude of an analog carrier signal varies in accordance with the bit stream (modulating signal), keeping frequency and phase… … Wikipedia
Amplitude and phase-shift keying — or Asymmetric Phase shift keying, (APSK), is a digital modulation scheme that conveys data by changing, or modulating, both the amplitude and the phase of a reference signal (the carrier wave). In other words, it combines both Amplitude shift… … Wikipedia
master key system — n. 1. any keying arrangement which has two or more levels of keying 2. a keying arrangement which has exactly two levels of keying … Locksmith dictionary
modified key coding system — n. a modification of the standard key coding system, in which the TMK of a system with three or more levels of keying has a single letter name, and keys at lower levels are named following SKCS conventions … Locksmith dictionary
engineer's key — n. a selective master key which is used by maintenance personnel to operate many locks under different master keys in a system of three or more levels of keying … Locksmith dictionary
grand master key system — n. a master key system which has exactly three levels of keying … Locksmith dictionary
great grand master key system — n. a master key system which has exactly four levels of keying … Locksmith dictionary
great great grand master key system — n. a master key system which has five or more levels of keying … Locksmith dictionary
sub-master key — n. the master key level immediately below the master key in a system of six or more levels of keying … Locksmith dictionary
