internet-based radio, satellite radio, cellular networks," he said. James continued: "Following a test of the system last fall, 95% of Americans reported getting that alert via their cellphones.
Sirius XM is the only satellite radio operator in North America. There are exceptions from automakers such as Honda and Rivian, but just about every new car sold in the U.S. and Canada comes with ...
But SDA wants to have a backup plan and this week brought on six companies to study commercial options for dealing ... requirements for on-demand satellite de-orbit services.
"Satellite navigation (GPS) degraded or inoperable for hours," the SWPC warned. " Radio – HF (high frequency) radio propagation sporadic or blacked out." The SWPC noted that a G4 or greater was ...