Near Real Time VHF Telemetry of Near Shore Oceanographic Data

Abstract

This thesis reports on the development and tests of a low cost automated telemetry system. This system daily transmits the last 24 hours of collected data from a near shore moored buoy system. Investigation into the different telemetry modes resulted in selecting a very high frequency (VHF) narrow band frequency modulation (NBFM) packet networking system. The telemetry system features line-of-sight propagation, resistance to radio interference and includes a digital error checking routine. The equipment used in VHF NBFM packet is light weight, has low power consumption and is inexpensive when used with commercially available amateur radio equipment. Tests of a prototype system suggest that a VHF NBFM packet system is a practical tool for near shore buoy telemetry of in situ oceanographic data. (RRH)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1989
Accession Number
ADA215756

Entities

People

  • Douglas L. Mckinney

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Bandwidth
  • Coast Guard
  • Computers
  • Environment
  • Frequency
  • Line Of Sight
  • Measurement
  • Modulation
  • Ocean Currents
  • Oceanography
  • Operating Systems
  • Radio Equipment
  • Telemetry
  • Terminals
  • Transceivers
  • Transmitters

Readers

  • Oceanography.
  • Radio communications and signal processing.
  • Systems Analysis and Design