Eric E. Johnson, David F. Peach, and Robert T. Adair

Abstract: Automatic Link Establishment (ALE) technology automates the selection of channels and establishment of links among high-frequency (HF) radios. This report describes software that simulates fading channels and the Federal Standard ALE modem used over those

Keywords: simulation; HF; ALE; high-frequency radio; performance analysis; radio networks; Watterson model; automatic link establishment (ALE)

Disclaimer: Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.

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