Slow-scan Television - Current Systems

Current Systems

A modern system, having gained ground since the early 1990s, uses a personal computer and special software in place of much of the custom equipment. The sound card of a PC, with special processing software, acts as a modem. The computer screen provides the output. A small digital camera or digital photos provide the input.


A spectrogram of the beginning of an SSTV transmission
Calibration header
VIS code
RGB scanlines
Sync pulses

Read more about this topic:  Slow-scan Television

Famous quotes containing the words current and/or systems:

    Phlebas the Phoenician, a fortnight dead,
    Forgot the cry of gulls, and the deep sea swell
    And the profit and loss.
    A current under sea
    Picked his bones in whispers. As he rose and fell
    He passed the stages of his age and youth
    Entering the whirlpool.
    —T.S. (Thomas Stearns)

    The only people who treasure systems are those whom the whole truth evades, who want to catch it by the tail. A system is just like truth’s tail, but the truth is like a lizard. It will leave the tail in your hand and escape; it knows that it will soon grow another tail.
    Ivan Sergeevich Turgenev (1818–1883)