Radio Check
A request can be sent to the radio to determine if it is turned on, on a specific frequency, or within range. The radio will respond with an 'ack' if it hears the request containing its individual ID. The radio can also be programmed to ignore these packets and not acknowledge them. It can also be programmed to perform this acknowledgement 'silently' (the radio user never knows that his radio has been 'pinged').
Read more about this topic: MDC-1200
Famous quotes containing the words radio and/or check:
“from above, thin squeaks of radio static,
The captured fume of space foams in our ears—”
—Hart Crane (1899–1932)
“If he had been sent to check out Bluebeard’s castle, he would have come back with a glowing report about the admirable condition of the cutlery.”
—Mary McGrory (b. 1918)