Channel reliability

In telecommunication, channel reliability (ChR) is the percentage of time a channel was available for use in a specified period of scheduled availability.

Note 1: Channel reliability is given by where T _o is the channel total outage time, T _s is the channel total scheduled time, and T _a is the channel total available time.

Note 2: T _s = T _a + T _o.

Source: from Federal Standard 1037C and from MIL-STD-188