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Apollo 7 slow-scan TV, transmitted by the RCA command module TV camera. NASA decided on initial specifications for TV on the Apollo command module (CM) in 1962. [2] [ Note 1] Both analog and digital transmission techniques were studied, but the early digital systems still used more bandwidth than an analog approach: 20 MHz for the digital system, compared to 500 kHz for the analog system. [2]
The original slow-scan television signal from the Apollo TV camera, photographed at Honeysuckle Creek on July 21, 1969. The Apollo 11 missing tapes were those that were recorded from Apollo 11's slow-scan television (SSTV) telecast in its raw format on telemetry data tape at the time of the first Moon landing in 1969 and subsequently lost.
Apollo TV camera; Hasselblad "Electric Camera" (modified 500 EL) with 70 mm film; Maurer Data Acquisition Camera (DAC) with 16 mm film; Nikon F with 35 mm film; Mapping (Metric) Camera (7.6 cm focal length) with 127 mm film, on Apollo 15, 16, and 17 (see Sherman Fairchild#Lunar photography) [1]
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. A literal term for SSTV is narrowband television .
English: Video of Apollo 11 engines during launch on 16th July 1969 from the Mobile Launcher. This footage takes place within approximately 30 seconds, camera E-8 captured on 16 mm film at 500 frames per second.
Horizontal scan rate, or horizontal frequency, usually expressed in kilohertz, is the number of times per second that a raster-scan video system transmits or displays a complete horizontal line, as opposed to vertical scan rate, the number of times per second that an entire screenful of image data is transmitted or displayed.
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English: This video shows the separation of two stages of the Saturn V launch vehicle during Apollo 4, an uncrewed test flight of the Apollo program. A camera mounted to the interior of the S-II, the Saturn V's second stage, records the separation of the S-IC, its first stage, and subsequent jettisoning of an interstage ring which connected the two stages.