Fiber-Optic Tethers vs RF Links: When 3 km of Glass Beats Radio
RF-controlled drones can be jammed; a drone flying on an unspooled fiber-optic tether has no radio link to break. In contested airspace, that single property is why fiber-optic spool systems have moved from experimental to standard kit.
What the glass actually buys
A fiber link is immune to RF jamming, emits no control signal to direction-find, and delivers stable low-latency video at 3–50 km ranges depending on spool size. The trade is weight: the spool rides on the airframe, and every meter of glass is accounted for in the payload budget.
Choosing the spool
Range, spool weight and connector type decide the fit — our selection guide walks the trade line from 3 km micro-drone spools to 50 km heavy variants (0.27 mm G657A2).
