2 ms·
> That stuff is good for drone warfare > each of them serving as a mesh-network node might have worked for a bit in the past, but is easily disrupted by jamme
by ninjagoo 6mo ago
> That stuff is good for drone warfare
> each of them serving as a mesh-network node
might have worked for a bit in the past, but is easily disrupted by jammers, and forced a switch to fiber-optic in-theater. People have learned from that and don't bother with radio anymore, even in new theaters.
- amelius 6mo agoHow about spread spectrum techniques?
- wiml 6mo agoLoRA is a spread spectrum chirp modulation already.
- esseph 6mo agoNot everything is fiber optic. Fiber optic tethers limit range and target conditions. You can't go into a forest or even an urban canyon, you basically need to run the drone along roads and fields. And you have to drag it with you, which reduces what you can carry. The fiber itself is very light weight and has a habit of getting sucked up into the props on quadcopters. There's a lot of frequency hopping and chirp systems being used now, with a mix between analog radios mostly for FPV and digital radios or Starlink for larger ISR drones or larger gliders. Digital still gets used a lot for FPV because of how readily available it is, but good drone FPV pilots want the lower latency of analog and will take it if they can get it.
- KaiserPro 6mo ago> which reduces what you can carry. the flip side of that is that your operator can be miles away, and using repeaters, hundreds of miles away. As the operator is the difficult to replace part, its a fair tradeoff. Frequency hopping is nice, as is spread spectrum but its still easily detectable, as is the operator.
- esseph 6mo agoYou don't use frequency hopping to avoid detection, you use frequency hopping to reduce jamming effectiveness and reduce message pickup/capture (encrypted).