Receiving Images
An APT signal is continuously broadcast, with reception beginning at the start of the next line when the receiver is within radio range. Images can be received in real-time by relatively unsophisticated, inexpensive receivers during the time the satellite is within radio range, which typically lasts 8 to 15 minutes.
As of 2004 there were almost 5,000 APT receiving stations registered with the World Meteorological Organization (WMO). It is unclear what percent of the total user-base this represents, since registration is not a requirement, and was only available after 1996.
Read more about this topic: Automatic Picture Transmission
Famous quotes containing the words receiving and/or images:
“They seldom looked happy. They passed one another without a word in the elevator, like silent shades in hell, hell-bent on their next look from a handsome stranger. Their next rush from a popper. The next song that turned their bones to jelly and left them all on the dance floor with heads back, eyes nearly closed, in the ecstasy of saints receiving the stigmata.”
—Andrew Holleran (b. 1943)
“We picked each other from afar and knew
What hour of terror comes to test the soul,
And in that terror’s name obeyed the call,
And understood, what none have understood,
Those images that waken in the blood.”
—William Butler Yeats (1865–1939)