> Satellite radio may, or may not be available as the ground stations that power it require even more advanced transcievers and software to operate and could take months to repair if attacked or destroyed

Not just the ground stations! If we're talking about an attack, the attacker very well might have the capability to shoot down the satellites themselves, too.

AM radio is portable and decentralized. Sure, it can be jammed, but so can pretty much anything else that requires you to send information through the air.