re power signal surges in home drand spinner osf org douglas s rand writes hams can legally run up to watts it is very unlikely however that a ham would be running that kind of power from a car ham rigs not possible either you d need about a amp alternator for just the amplifier i can just see it you need to slow down on a downgrade so you hit the push to talk button well amps anyway transmissions are generally for a short interval the battery would supply the rest of course if you transmitted too much you would run the battery down it really would not be that much of a brake even at efficiency watts would only consume horsepower bill
