This wouldn't be an issue, it could easily make use of a satellite uplink, and the curvature of the earth is a more limiting factor for a transmission than transmission power in most cases (unless they're running a 4K livestream or something, but even then, other problems get in your way before power)
Lol, how much power would it need to send a signal outside US borders? I'm not sure the solar panels would be enough.
This wouldn't be an issue, it could easily make use of a satellite uplink, and the curvature of the earth is a more limiting factor for a transmission than transmission power in most cases (unless they're running a 4K livestream or something, but even then, other problems get in your way before power)