DDS = direct digital synthesis (for those who were leaning toward dental school degrees). Internal battery (6 AA cells, 2.8 AH). 1.25"H x 5"W x 3"D. Only 3 SMDs. Stealth. :) With that, I'm off to Long Beach. Eric will be posting full details at about 8 PM Pacific time. 73, Wayne N6KR -- http://www.elecraft.com