This specification covers the Transmitter Group, Simulated Radiac, Hot Spot OT-52/T. The Of-52 i s an RF transmitter and antenna which simulates a radioactive fallout pattern with radio waves. The OT-52/T consists of the three Transmitter, Simulated Radiac, Hot Spot T-1255/T; one Case, Simulated Transmitter CY-7349/1; one Antenna Assembly AS-291 9/T and miscellaneous cables and supportcomponents