Trump Administration Opposes Additional Study of Possible 5G Weather Satellite Interference

GOES-17 satellite during processing by Astrotech. (Credit: NASA)

The Trump Administration is opposed to any further study on whether new 5G communications services will interfere with meteorological satellites and degrade the accuracy of weather forecasting.

In a letter to Senate Appropriations Committee Chairman Richard Shelby (R-Ala.), the White House said it wants a provision removed from the FY 2020 funding bill that would require the National Oceanic and Atmospheric Administration (NOAA) to review the impact of 5G services operating in the 23.6 to 24 gigahertz bands on weather satellites.

“Such a study would be directly duplicative of past Agency studies on this subject, which were fully considered by the Administration in a lengthy interagency process earlier this year, leading to a carefully-wrought compromise that balances the spectrum needs of government and private enterprise,” wrote Russell Vought, acting director of the Office of Management and Budget.

Some studies have shown that 5G transmissions could interfere with weather satellites. However, Federal Communications Commission Chairman Ajit Pai has criticized the studies as flawed.

House Science Committee Not Buying Ajit Pai’s Assurances on Weather Forecasting

Ajit Pai

by Douglas Messier
Managing Editor

The battle over 5G wireless frequency allocation is heating up.

On  one side, there’s NASA, the Department of Commerce and the National Oceanic and Atmospheric Administration (NOAA) who say that spectrum in the 24GHz band the government recently auctioned off to private companies will likely result in cell signals that would interfere with accurate weather forecasting.

On the other side is Federal Communications Commission  and its chairman, Ajit Pai, who ignored requests to delay the auction while more studies were done. Pai recently told the Senate Science Committee to ignore what he called faulty data presented by NASA and NOAA at the 11th hour.

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NASA & Commerce Department Battle FCC Over 5G Frequency Allocation

Ajit Pai

SpaceNews reports that NASA and the Commerce Department are battling the Federal Communications Commission (FCC) over the commission’s plan to auction radio frequency spectrum for 5G service.

The battle has apparently taken the form of an exchange of tersely written letters.

In a March 8 letter to Commerce Secretary Wilbur Ross and NASA Administrator Jim Bridenstine, [FCC Chairman Ajit] Pai emphasized the Trump Administration’s commitment to rolling out 5G as soon as possible and freeing up spectrum for it.

The FCC is preparing to auction 2,909 licenses in the 24.25 to 25.25 bands of the electromagnetic spectrum on March 14. At the same time, the FCC is preparing the U.S. government’s proposal for the 2019 World Radiocommunications Conference (WRC) in Egypt starting in October. The U.S. plan for protecting passive microwave services from interference is far less stringent than plans published by other nations.

Ross and Bridenstine asked for further discussion of the U.S. position.

“The current FCC proposal would have a significant negative impact on the transmission of critical Earth science data – an American taxpayer investment spanning decades and billions of dollars,” they wrote in a Feb. 28 letter to Pai. “As the U.S. government continues to investigate additional spectrum for future commercial broadband use, it is essential that protections are established for the critical operations of NASA, the Department of Commerce and our international partners in the 23.6 to 24 GHz spectrum band.”

Pai wrote back on March 8 rejecting the idea of putting the auction on hold and attending an inter-agency meeting scheduled for today.