a subordinate air control element of the tactical air control centre from which radar control and warning operations are conducted within its area of responsibility, õhuoperatsioonide juhtimisüksus, kus teostatakse nii õhuseire- kui ka sihitusoperatsioone

a mathematical algorithm applied to the digital expression of data that provides a level of assurance against loss or alteration of data, meetod üle sideliini edastatud andmete tervikluse kontrolliks