# Network control in which the Control Station invites tributary stations to transmit in the Sequence specified by the control station,
#In point-to-point or multipoint communication, the process whereby stations are invited one at a time to transmit,
#In automated HF Radio systems, a technique for measuring and reporting Channel quality.
#The sequential Interrogation of devices for various purposes, such as avoiding Contention , determining operational status, or determining readiness to send or receive Data . Computer Science shares this definition of the word.
