I have a pro-197 and a pro-163 can I hook these straight to the hot and negative post on a 12 volt battery or will this fry the scanners. all I have in my ham shack are car battries?
Both the PRO-163 and PRO-197 require 12-13.8vdc @ at 600 mA with the center pin positive according to the manuals. I would think that a 2 amp fuse would be sufficient. The Radio Shack wall wart that came with my PRO-197 is rated 13.8vdc @ 600 mA.