The backup won't run the computer system that long either. If you don't
transmit on the radio, ormaybe run you might an hour or two. We lost
power one night for about two hours. I pluged my 480 in to the ups, and was
absolutely amazed at what I could hear with no power in the neighborhood.
Oh well all good things come to an end, and the next day my noise floor was
back. I think their was a 5 S unit difference.qrp cW,