Alternatively, if you want to get global coverage, there's https://www.bivystick.com/bivy-stick-satellite-communicator/ https://www.bivystick.com/bivy-stick-sat

Alternatively, if you want to get global coverage, there's https://www.bivystick.com/bivy-stick-satellite-communicator/ https://www.bivystick.com/bivy-stick-satellite-communicator/ Disclosure: I worked on an implementation of the Android-side Bluetooth stack for this. It's... decent.