Accession Number:

ADA014472

Title:

An Expendable Command Termination Receiver System for Scientific Balloon Flights.

Descriptive Note:

Annual technical rept. 1 Apr 74-31 Jul 75,

Corporate Author:

CALIFORNIA UNIV SAN DIEGO LA JOLLA DEPT OF APPLIED PHYSICS AND INFORMATION SCIENCE

Personal Author(s):

Report Date:

1975-07-31

Pagination or Media Count:

32.0

Abstract:

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.

Subject Categories:

  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE