For years, a decades-old restriction designed to keep cell phones from interfering with ground-based mobile networks has also stood in the way of drone operations. The Federal Communications Commission (FCC) has now decided it’s time to move on.
The FCC has voted to open 50 megahertz of spectrum in the 800 MHz cellular band for uncrewed aircraft systems (UAS). The decision removes a longstanding restriction on airborne use of the band, potentially giving drone operators access to additional licensed spectrum for communications and other operations.
The change is more significant than it might initially sound. Drones increasingly depend on reliable wireless connections for command and control, data transmission, and payload operations. Making more licensed spectrum available could help support more sophisticated drone applications, particularly as commercial operations expand and operators look for ways to manage increasingly busy airspace.
So, why was this spectrum off-limits in the first place?
The story goes back to 1981, when the FCC established rules for the 800 MHz cellular radiotelephone service. At the time, cellular networks were relatively new, and the Commission was concerned about interference from mobile phones operating at altitude. A phone transmitting from an aircraft could potentially connect with multiple ground-based cell towers simultaneously, creating interference across terrestrial networks.
In 1991, the FCC introduced a prohibition on airborne use of the 800 MHz band to address that concern. The restriction remained in place for decades, even as wireless technology evolved and drones became an increasingly important part of commercial and public-sector operations.
The FCC now believes the original concern no longer justifies a blanket restriction on uncrewed aircraft. Modern cellular networks use more advanced technologies to manage interference, making it possible to accommodate drone operations without creating the same risks associated with early cellular systems.
The newly unlocked spectrum can support a range of UAS functions, including command, control, communications, and payload operations. It also gives drone technology developers and operators access to 50 MHz of licensed, nationwide, low-band spectrum, bringing the 800 MHz band in line with other flexible-use spectrum bands.
This decision is part of a broader FCC push to strengthen America’s position in the global drone industry. The Commission has been pursuing a two-pronged strategy focused on expanding commercial spectrum access while strengthening domestic security.
Other initiatives include studying how cellular networks can support drone operations in collaboration with federal partners, using experimental licenses and Innovation Zones to encourage testing, and supporting counter-drone capabilities for local law enforcement. The FCC has also taken steps targeting foreign-produced drones and critical components.
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