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:
“When receiving an order, many servants repeat their “yes” numerous times, especially the lazy ones.”
—Franz Grillparzer (1791–1872)
“The mind loves the unknown. It loves images whose meaning is unknown, since the meaning of the mind itself is unknown.”
—René Magritte (1898–1967)