Amateur ExtraE2B04
How is color information sent in analog SSTV?
A
Answer
Operating procedures and special operations
Type
A
Color lines are sent sequentially
B
Color information is sent on a 2.8 kHz subcarrier
C
Color is sent in a color burst at the end of each line
D
Color is amplitude modulated on the frequency modulated intensity signal
Answer Notes
In analog Slow-Scan Television (SSTV), color images are transmitted by sending the color components of each horizontal line sequentially. Most popular modes send a line of red information, followed by a line of green, and then a line of blue (RGB).
This sequential transmission method allows standard SSB audio voice channels to carry full-color images without requiring complex subcarriers. Distractors mentioning color bursts or 2.8 kHz subcarriers apply to fast-scan NTSC analog television, not the narrow-bandwidth audio tones used in SSTV.
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How is an interlaced scanning pattern generated in a fast-scan (NTSC) television system?
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Which of the following describes the use of vestigial sideband in analog fast-scan TV transmissions?