this post was submitted on 27 May 2025
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The density in some areas of fiber optic cables left behind by FPV drones. (i.imgur.com)
submitted 2 months ago by LaFinlandia@sopuli.xyz to c/ukraine@sopuli.xyz
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[–] Steve@startrek.website 5 points 2 months ago (1 children)

Are they tethered to the operator?

[–] nimble@lemmy.blahaj.zone 28 points 2 months ago* (last edited 2 months ago) (1 children)

The drones have a spool of fiber optic cable. Some spools can reach 40km. The spool unwinds as the drone flies and yes it would either lead back to the operator or they could in theory have a node that it connects to and then from there connect to operator via cable or wireless. Really fascinating stuff imo

How they work:

[–] NOT_RICK@lemmy.world 4 points 2 months ago (3 children)

Now I’m curious how much a 40km long spool costs

[–] _cryptagion@lemmy.dbzer0.com 6 points 2 months ago

Just several hundred dollars, and a visit from the ATF.

[–] BastingChemina@slrpnk.net 5 points 2 months ago

Looking at Alibaba, the "bare fiber for FPV drone" cost around $600 for a 50km spool.

[–] FundMECFSResearch@lemmy.blahaj.zone 2 points 2 months ago (1 children)

Very expensive probably. They are selling 1000 feet (I think that’s like 300m) on Amazon for between 300-900 USD.