C S ~ \x5bDuke of Ramble\x5d
Kyiv Post
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Comments by "C S ~ \x5bDuke of Ramble\x5d" (@DUKE_of_RAMBLE) on "Exclusive First Look: Ukraine’s Fiber-Optic Drone That Outsmarts Jamming Systems" video.
@Varko-Farsight I think you've misunderstood what I had said. The "super thin" communication method TOW system uses are provided by two copper wires with a diameter of 0.01 inches [0.25mm], not thin fiber optic.
My thought was that the fiber they're hand, along with its additional outer sleeving, might weigh more than that copper wire, since I suspect they are running very long distances where that much copper WOULD become heavy.
However, the light pulses that fiber optic system uses do not require any significant power source. Lasers, after all, require very little power for systems like this. Which is why I mentioned that part at the end about the communication over wires maybe requiring a high voltage system. In a TOW missile, that would be supplied by the launching system; however, in this application it would be a mothership drone with a finite power system, so the extra power draw AND additional power supply would be at a premium.
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@cybyrd9615 No, you're right, it cannot match the bandwidth of light. However, they aren't using 8K cameras at 240FPS, either. 😅
Which based on what I quickly turned up in 10sec of looking, real-world results of bandwidth for "Ethernet over Power" is 50mbit WORST CASE:
"- On the same breaker: 500mbps
- On the same leg, different breaker: 250mbps
- Different leg/breaker: 90mbps.
- House to detached garage (longer distance, same leg, different breaker): 50mbps"
His post is dated 5yrs ago, so technology will likely have improved slightly, albeit probably negligibly. In his same post he mentions switching to a "MoCA 2.5" adapter and getting 900mbit. A reply looking at the specs for that standard indicate the 2.5 is the theoretical max of 2.5GIGAbit. Of course, theory and real world are never anywhere close, so I only mention it because in a best case scenario, even half that is a LOT of speed.
Since we're not having to deal with noisy home appliances on the same power grid, or breakers, nevermind screw terminal interfacing... I'd guess that EoP is more than capable of sending even a 1080p feed and control inputs. (latency over coax won't be an issue at that range)
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