https://www.aopa.org/news-and-media/all-news/2020/may/14/jam-session-ligado-network-gets-static-from-congress-over-threat-to-gps?utm_source=epilot&utm_medium=email

From the U.S. Capitol to social media, Sen. Jim Inhofe (R-Okla.) and other lawmakers continued to blast the Federal Communications Commission for its unusual weekend approval in April of the Ligado Networks 5G wireless network proposal that critics say could jam GPS reception.

The House Committee on Armed Services has also dialed in on the controversy, questioning the FCC’s decision-making process in a letter and setting a seven-day timeline for the agency’s response.

Inhofe—who resumed his criticism a few days after excoriating Ligado and the FCC at a May 6 hearing of the Senate Committee on Armed Services, which he chairs—has been a prominent voice among a steady stream of objections to Ligado’s license application from government officials and agencies and private-industry organizations.

On May 7, the House Committee on Armed Services wrote to the FCC to transmit its “deep concern,” noting that “the national security community was unanimous in the judgement that approval of the use of certain portions of the L band spectrum could pose an unacceptable risk to the use of the Global Positioning System (GPS) in the United States.”

Ligado’s critics have skeptically received its assurances that the GPS signals that drive modern life will not be drowned out by Ligado’s louder transmission on an adjacent realm of spectrum that it considers “uniquely suited” to host its "internet of things" network.

Yes. The FCC is stupid.

Kind of dupe... https://www.ar15.com/forums/General/LightSquared-is-back/147-2322752/

I would think DOD would tell FCC to simply shut up and stand down.

Or DOD can get better GPS?

I thought DOD operates on different super-duper GPS signals than the civilians.

Also DOD and DHS can shut down civilian GPS, too.

DoD operates on the same GPS as everyone else.  There used to be a separate signal known as selective availability, which corrected for intentional errors in the GPS positioning (up to 50 meters horizontally and 100 meters vertically), but this was eliminated under the Clinton administration in 2000.

While the GPS system CAN be shut down, it cannot be shut down for civilians and still in place for military, so it won't be shut down.

Mike

Incorrect. Since the advent of direct P code acquisition many years ago, civilian access to GPS can be denied without strongly affecting the military. However, since there are now no less than four operating GNSS systems, including GPS, and since most GNSS chipsets process three or more, it's kind of a moot point.