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A comment on Receiving SpaceX Falcon 9 Telemetry with a HackRF and 1.2m Satellite Dish. Parent comment

Re:Receiving SpaceX Falcon 9 Telemetry with a HackRF and 1.2... by rrmm on Thursday March 11, 2021 @09:56AM (#26424602)
Yup. Easy to do for most adversary nation-states as well, but the NRO still doesn't allow the SpaceX livestream to follow stage 2.
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Re:Receiving SpaceX Falcon 9 Telemetry with a HackRF and 1.2... by ceejayoz on Thursday March 11, 2021 @10:12AM (#26424823)
Yeah, over-classification is definitely a thing. I suspect they don't want close-up video imagery of the payloads out there, either.
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Re:Receiving SpaceX Falcon 9 Telemetry with a HackRF and 1.2... by _Microft on Thursday March 11, 2021 @10:05AM (#26424718)
Maybe it's possible to detect radio echoes off the rocket exhaust trail (passively) like it is possible to do with meteors [0][1] and roughly tell where the second stage is (just for the sake of doing it this way).

[0] https://www.electronics-notes.com/articles/antennas-propagat...

[1] https://en.wikipedia.org/wiki/Meteor_burst_communications

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