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A comment on SpaceX just achieved speed of 17Mb/s from satellite to stock Android phone. Parent comment

Re:SpaceX just achieved speed of 17Mb/s from satellite to st... by cyberax on Sunday March 03, 2024 @01:53AM (#39579033)
To achieve this kind of speed, you need at least around 600kbps at the barest minimum for TCP ACK packets (~50 bytes), assuming that downstream packets are full-frame 1500 bytes.
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Re:SpaceX just achieved speed of 17Mb/s from satellite to st... by bsdetector on Sunday March 03, 2024 @02:07AM (#39579081)
The tweet's 17 Mb/s is UDP down from satellite, so no ack replies from the phone, and 15% packet loss.

So it really doesn't say anything about upload speed.

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Re:SpaceX just achieved speed of 17Mb/s from satellite to st... by dmitrygr on Sunday March 03, 2024 @02:04AM (#39579067)
That’s not really true since one ACK packet can acknowledge multiple RXed data packets.
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