Inmarsat's Chief Doubts Severity of LightSquared-GPS Interference Issue

摘要

The chief executive of mobile satellite services operator Inmarsat questioned the motivations of GPS backers now rising up against a satellite-terrestrial mobile broadband project, saying claims of interference with GPS signals were addressed years ago and settled by mutual agreement. Andrew Sukawaty, while insisting that London-based Inmarsat is not directly involved in the increasingly heated dispute between Light-Squared and government and industry GPS proponents, said LightSquared's broadcast frequencies have long been known. 1,4 NASA Puts $30M Cost On JWST Hot Pixel Fix The root cause of a problem affecting imaging sensors inside three of the James Webb Space Telescope's (JWST) primary instruments continues to elude NASA, but under the worst-case scenario the U.S. space agency expects to spend about $30 million to remanu-facture the faulty parts, the program's director said March 3. During testing in December, NASA discovered the performance of multiple detector arrays had degraded since they were tested two years ago and put in storage.