Other applications include skydiving, hiking, climbing, and search and rescue. Altimeters rely on barometric pressure, radar, LiDAR, and GPS to complete altitude measurements. Barometric pressure ...

These frequencies are close to the ones used by radio altimeters on aeroplanes, which measure the height of the aircraft above the ground, and also provide data for safety and navigation systems.

The Federal Aviation Administration (FAA) and aviation companies have previously raised concerns that C-Band spectrum 5G wireless could interfere with aircraft altimeters, which measure a plane's ...