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Main Title LORAN-C Tetroon Transponder and Tracking System.
Author Clawson, K. L. ; Pound, E. F. ; Dickson, C. R. ; Start, G. E. ;
CORP Author National Oceanic and Atmospheric Administration, Idaho Falls, ID. Air Resources Lab. ;E.F.P. Co., Logan, UT.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Year Published 1986
Report Number EPA/600/3-86/060;
Stock Number PB87-116687
Additional Subjects Tracking(Position) ; Transponders ; Converters ; Telemetry ; Recievers ; Transmitters ; Electric batteries ; Data aquisition systems ; Navigator ; Balloons ; Tetroons
Library Call Number Additional Info Location Last
NTIS  PB87-116687 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 65p
Abstract An advanced system for tracking multiple regional scale Lagrangian markers was developed. The system consists of a miniature tetroon-borne transponder and a small computerized receiving station capable of providing continuous real-time data on tetroon location (latitude/longitude) and altitude. The transponder consists of a telemetry subsystem, a LORAN-C receiver, and a 403 MHz transmitter. The telemetry subsystem measures atmospheric temperature and pressure, converts the data into frequencies, and then transmits these data together with a transponder ID frequency to a remote receiving station. Multiple tetroons can be discriminated at a range of up to 160 km. The transponder weighs less than 365 g and can be flown on a cub m tetroon. Battery life is 2 to 6 days. The data acquisition system consists of an FM receiver, a LORAN-C navigator, a frequency to digital converter, and a microcomputer. The receiving station can be ground-based or mounted in a single engine aircraft.
Supplementary Notes Prepared in cooperation with E.F.P. Co., Logan, UT. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
NTIS Title Notes Final rept..
PUB Date Free Form Oct 86
Category Codes 45C; 51C
NTIS Prices PC A04/MF A01
Primary Description 600/09
Document Type NT
Cataloging Source NTIS/MT
Control Number 703716344
Origin NTIS
Type CAT