Ahhh.... so there's like a switch for Hi--Lo power?

Fortunately I've never hailed the guy at the adjacent slip for spare ice.
On my delivery the broker called the USCG that we were overdue (yea, due to not having the SPOT connect work) and we got a call from them (loud and clear) in St. Petersburg and we were right off Panama City Beach, nearly 250 miles away. What wattage were they using? I shudder to think what might have happened if I hadn't answered.