I'm looking for an HF transceiver that isn't so dependent on the 13.8 volt input that seems so prevalent in the market today. My go to portable rig at the moment is an icom-7200. I really like this radio and have used it for both maritime mobile and in my RV. My only complaint is if the full 13.8 volts is not available full output power is also not available. So, unless I'm running a generator or am plugged into 110 I can't get full power out. Is there an HF transceiver on the market than can operate at a full 100 watts of power at 12 volts or less? Thanks for any info. Steve, K6OFG.