The Ships and Aircraft of the United States Fleet, Fahey, War Edition 1942 FJ-2 It received signals from two

It received signals from two antennae (see photo) typically mounted on each side of the aircraft forward of the wing

It would have been attached to a 12 volt power source

this indicator was being used in late models of medium bomber B-26 Marauder

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and is 4 lbs

The Ships and Aircraft of the United States Fleet, Fahey, War Edition 1942 FJ-2 It received signals from twoThis 64 page soft cover book describes the ships and aircraft in use by the United States Navy as of 1942. The book contains brief descriptions of all capital ships and major aircraft in use by the US Navy at that time. This is an original document and not a reprint. It is in very good condition, all pages are intact. Measures ~9 inches by ~6 inches.