Radiofax
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Radiofacsimile, radiofax or HF fax is an analogue mode for transmitting monochrome images via high frequency (HF) radio waves. It was the predecessor to slow-scan television (SSTV). It was the primary method of sending photographs from remote sites from the 1930s to the early 1970s. It is still in limited use for transmitting weather charts and information to ships at sea.
Children read a wirelessly-transmitted newspaper in 1938.
December 1945 advertisement for New York City FM station WGHF, featuring the station's experimental broadcast facsimile service using a subcarrier transmission
A marine radio fax news from Tokyo Radio JJC Station received using MIXW with a SSB HF communication receiver
Slow-scan television
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Slow-scan television (SSTV) is a picture transmission method, used mainly by amateur radio operators, to transmit and receive static pictures via radio in monochrome or color.
Astronaut Gordon Cooper, SSTV transmission from Faith 7
NASA slow-scan image from the Moon
Slow-scan test card
Encoded image in B/W 8 system.