GROUND-AIR-GROUND DATA TRANSMISSION SYSTEMS TESTS

Abstract

Tests were conducted at RADC to check the feasibility of Air/Ground/ Air Narrow Band FSK Data System utilizing frequency diversity and doppler correcting techniques. Results of air/ground/air data transmission tests are described in this report. These tests were conducted between RADC's Ava Test Annex and a KC-135 flying to California and Alaska. The equipment at both terminals used narrowband frequency shift keying, with frequency diversity and doppler correction, in conjunction with equipment currently in Air Force inventory. In addition, a solid-stage tape printer and a TDMS-5 sender were used. The teletypewriters were set to operate at 100 WPM (74.2 bauds/sec). It can be concluded from the test results that doppler-correcting narrowband techniques applied to frequency diversity operation in ground/air/ground data transmission is feasible, resulting in reliability and error rates equivalent to ground point-to-point systems operating within similar effective power ranges and antenna gains.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1963
Accession Number
AD0414629

Entities

People

  • Adolph J. Uryniak

Organizations

  • Rome Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Bandwidth
  • Communication Systems
  • Data Transmission
  • Data Transmission Systems
  • Doppler Effect
  • Frequency
  • Frequency Diversity
  • Frequency Shift
  • Ground Stations
  • Narrowband
  • Power Supplies
  • Radio Frequency
  • Teleprinters
  • Teletype Systems
  • Teletypewriters

Readers

  • Aviation Safety and Air Traffic Management
  • Radio communications and signal processing.