Over the years, 5G deployment and activation in the U.S. has not been without controversy and opposition due to numerous of serious issues associated with it.  One of them is that it poses harmful interference risks with other networks – most notably with aviation equipment (see 1, 2, 3, 4, 5); however, interference issues are not isolated to aviation equipment.  Utility companies and associations have filed lawsuits against the Federal Communications Commission (FCC) due to 5G interference risks to their infrastructure.  In 2022, the Department of Defense (DoD) started trying to resolve potential 5G network interference issues with military radar as well.  Also in 2022, telecom provider, SpaceX began reporting that Dish's 5G satellites would cause interference issues affecting its Starlink satellite service.  DirecTV and RS Submit complained about satellite interference risks too.  Additionally last year, a bipartisan group of senators requested that the FCC reconsider harmful interference risks associated with Ligado's network before allowing it to be activated.  More recently, Ligado decided to sue the U.S. government for alleged bad behavior.

From Fierce Wireless:

Ligado sues U.S. government, says DoD is using its spectrum illegally

By Linda Hardesty

Ligado Networks has been involved in a dispute against the Department of Defense (DoD) and the GPS industry for years. Now, Ligado is taking the matter to court. It alleges the U.S. government misappropriated Ligado's exclusively licensed spectrum to support secret DoD systems that have been using the spectrum without permission.