An Expendable Command Termination Receiver System for Scientific Balloon Flights.
Annual technical rept. 1 Apr 74-31 Jul 75,
CALIFORNIA UNIV SAN DIEGO LA JOLLA DEPT OF APPLIED PHYSICS AND INFORMATION SCIENCE
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A lightweight, expendable command receiver has been developed for terminating scientific balloon flights. The receiver operates at 138.54 MHz and the command is actuated by a sliding tone from 300 Hz to 400 Hz. A Phase Locked Loop detector circuit operates an SCR firing circuit to actuate a gullotine type explosive cutter. Design information, schematic diagrams and construction details for the receiver are provided. An additional feature of the command receiver is the capability for measuring the slant range to the balloon.
- Radio Communications