The Mercury-Atlas-9 slow-scan TV experiment

Forum for discussion of SSTV topics. 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 colour.

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The Mercury-Atlas-9 slow-scan TV experiment

Postby Harry Dalek » Fri Jul 15, 2022 8:53 pm

Came across this
The Mercury-Atlas-9 slow-scan TV experiment
"the quality and usefulness of its transmissions were not satisfactory" ! ; (
http://www.svengrahn.pp.se/radioind/Mer ... Radio.html
The electromagnetic spectrum has no theoretical limit at either end. If all the mass/energy in the Universe is considered a 'limit', then that would be the only real theoretical limit to the maximum frequency attainable.
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Re: The Mercury-Atlas-9 slow-scan TV experiment

Postby Steve Anderson » Wed Jul 20, 2022 5:04 pm

...interesting to note that this system also used 320-lines as well as the early monochrome Apollo missions of some years later. There presumably is a reason? Though the Apollo missions had a higher frame rate than the Mercury missions, 10fps as opposed to 2fps. 2fps could well be quite viewable on a P7 or similar phosphor CRT. I guess few, if any, recordings survive...NASA seem adept at 'losing', 're-using', or simply destroying historically significant records of events and data. Here's one example I may have linked to in the past...

http://www.thelivingmoon.com/47john_lea ... Found.html

Also this...

https://www.youtube.com/watch?v=CGwyhc4g3q4

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