The talbe: a V.H.F. C.W. radio aid for air/sea rescue

摘要

General consideration of personal beacons for air/sea rescue are discussed, and the search techniques briefly described. Suitable battery types are reviewed. The mechanical and circuit design of two c.w. beacons is described: a dinghy transmitter without speech or reception facilities, and a personal type (TALBE????????Talk and Listen Beacon) giving these facilities.