National Geographic : 1925 Jan
TIHE NATIONAL GEOGRAPHIC MAGAZINE Official Photograph, U. S. Navy SKIRTING THE MOUNTAINS OF THE PACIFIC COAST This coast is, in general, rugged, the high land in many places rising abruptly from the sea. The same storms which the Shenandoah rode through over the Pacific sent ships on the rocks and others to dry docks for repairs. The radio "shack" is a separate gon lola, but so close to the forward navigat ing gondola that from the outside it ap pears to be the tail end of that car. The little radio room is reached by a narrow door from the navigating compartment. It was so small that two operators facing their keys and array of tuning dials can not sit back to back. The two antennae hang under the car within a few feet of each other. In a closet between the two compartments is a special-type gasoline engine driving a 6o-ampere direct-current generator which charges a 24-volt storage battery. The generator ran 24 hours a day, except once when it was taken down and reassembled in flight. This closet was also the ship's galley, where the coffee, soup, and beans were heated on two gasoline burners. It was so much smaller than the radio room that two men could not stoop at the same time, let alone sit down. The main transmitter was a 6-tube Navy aircraft standard type SE-139o, modified to permit the use of telephone. It operated on a continuous frequency range of from 6oo to 250 kilocycles. \n antenna, 450 feet of copper cable weighted with a 15-pound lead "fish," was dropped for this set.