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A comment on Receiving images of Earth from satellites with software defined radio.

Re:Receiving images of Earth from satellites with software d... by arethuza on Tuesday June 09, 2020 @09:51AM (#23466635)
During the Falklands War the Norwegians gave the UK a constant stream of images obtained from Soviet spy satellites that gave very good information on the position of the Argentinian Navy.
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Re:Receiving images of Earth from satellites with software d... by tomato2juice on Tuesday June 09, 2020 @09:53AM (#23466656)
> images obtained from Soviet spy satellites

How did they obtain them? Were they not encrypted?

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Re:Receiving images of Earth from satellites with software d... by arethuza on Tuesday June 09, 2020 @10:43AM (#23467063)
Sigint means - it is mentioned in the book GCHQ by Richard Aldrich.
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