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 weeks ago by LaFinlandia@sopuli.xyz to c/ukraine@sopuli.xyz
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[–] Steve@startrek.website 12 points 2 weeks ago (12 children)

What? Why is there so much fiber optic cable?

[–] Fandangalo@lemmy.world 49 points 2 weeks ago (10 children)

From Internet (not op):

Fiber-optic first-person-view drones areΒ jam-proof. Sending and receiving signals along millimeters-thick but miles-long optical fibers, these FPV drones are impervious to the radio interference that can ground wireless FPV drones. That doesn't mean it's impossible to defeat a fiber-optic drone.

[–] Steve@startrek.website 5 points 2 weeks ago (1 children)

Are they tethered to the operator?

[–] nimble@lemmy.blahaj.zone 28 points 2 weeks ago* (last edited 2 weeks 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 weeks ago (3 children)

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

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

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

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

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

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

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

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