Here is a new constellation that hopefully we could add to the JAVAD arsenal. Theses same satellites are used for internet connection in remote areas. So we would not need radios or cell phone hot spots if we could use it.
SpaceX's Starlink broadband satellites could be used for GPS navigation
SpaceX's Starlink satellites may be used for navigation and global positioning in addition to their core function of broadband Internet, a new research study suggests.
www.space.com