FCC approves new spectrum rules to give new constellations more capacity
The Federal Communications Commission (FCC) yesterday approved new spectrum rules proposed by SpaceX that will increase the capacity of all the new low-Earth-orbit constellations by as much as seven times.
The commission introduced the new rules earlier this month before approving them at a Thursday meeting. The revamp targets the Equivalent Power Flux Density (EPFD) rules, which were developed in the late 1990s and limited the amount of energy satellite systems could transmit to and from ground equipment. The regulations were also designed to prevent radio signal interference between higher-orbiting geostationary satellites and lower-orbiting systems. But during the vote, Carr said the decades-old existing rules were “holding back” newer satellite internet offerings.
“Modern satellite designs make it far easier to share spectrum than what yesterday’s regulations assumed. We can do a lot better,” he said. Carr touted the 7x increase when the commission found the revamped rules could enable “eight satellites to provide service simultaneously in a given geographic area and frequency band, instead of being effectively limited to one satellite under current EPFD limits.”
The FCC was sold on this change after SpaceX conducted its own tests in orbit, using Starlink satellites, to demonstrate it could work. The rule change will benefit all the new constellations, which is why Amazon’s Leo constellation supported the change as well.
The speed in which the FCC acted on this matter must also be noted. It did not bother with long studies of its own. It quickly reviews SpaceX’s work, realized it made sense, and scheduled the vote at its very next meeting. This constrasts starkly with the FCC during the Biden administration, which routinely slow-walked or even opposed such suggestions.
The Federal Communications Commission (FCC) yesterday approved new spectrum rules proposed by SpaceX that will increase the capacity of all the new low-Earth-orbit constellations by as much as seven times.
The commission introduced the new rules earlier this month before approving them at a Thursday meeting. The revamp targets the Equivalent Power Flux Density (EPFD) rules, which were developed in the late 1990s and limited the amount of energy satellite systems could transmit to and from ground equipment. The regulations were also designed to prevent radio signal interference between higher-orbiting geostationary satellites and lower-orbiting systems. But during the vote, Carr said the decades-old existing rules were “holding back” newer satellite internet offerings.
“Modern satellite designs make it far easier to share spectrum than what yesterday’s regulations assumed. We can do a lot better,” he said. Carr touted the 7x increase when the commission found the revamped rules could enable “eight satellites to provide service simultaneously in a given geographic area and frequency band, instead of being effectively limited to one satellite under current EPFD limits.”
The FCC was sold on this change after SpaceX conducted its own tests in orbit, using Starlink satellites, to demonstrate it could work. The rule change will benefit all the new constellations, which is why Amazon’s Leo constellation supported the change as well.
The speed in which the FCC acted on this matter must also be noted. It did not bother with long studies of its own. It quickly reviews SpaceX’s work, realized it made sense, and scheduled the vote at its very next meeting. This constrasts starkly with the FCC during the Biden administration, which routinely slow-walked or even opposed such suggestions.








