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by bri3d 1931 days ago
This has been out for a few years in the form of the "DJI FPV" system, Goggles and Air Unit, for DIY drone construction. It's not science fiction - the latency and bitrate taper off a bit at range, but it genuinely works.

If you tear down the hardware, it's using an Imagination IE1000 802.11ac frontend, Skyworks amps, and a custom DJI image processor chip (marked P1). So the air protocol probably looks somewhat like 802.11ac (OFDM etc.) but without the framing overhead and presumably without TCP/IP.
1 comments
Leherenn 1931 days ago
They use frequency hopping also as far as I know.
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bri3d 1931 days ago
I don't think so, at least not outside of the channel bandwidth - based on the FCC filings and the observed behavior, initialization seems to happen on 5839MHz (Channel 8) and then the device hops to a user-selected channel, where it seems to stay.
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