Nice feature.... ours were all manual. Went out on the catwalk at the outer edge of the flightdeck, walked out onto a plaform at the base of a fiberglass antenna that had to have been maybe 40ft long? You grabbed a lever, unlocked and rotated the antenna down or up. It had a counter weight at the base to make this possible. As a Radioman onboard the Ranger, our Message Center was located near the bow, just below the flight deck, so at times, we were asked by the deck crew to lower the antenna close to us.. normally, that crew took care of it. Memories.... has been over 50 years ago. Ship has been scrapped now.