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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Dataset Last Updated: January 01, 1984 at 12:00 AM

These ionospheric data consist of scaling notes, equipment usage logs, and ionospheric values in the form of daily work sheets, F-Plots, tabulations, and booklets. The station notes list the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Dataset Last Updated: January 01, 1957 at 12:00 AM

The standard (analog) ionosonde produces photographic records known as ionograms, which show the variations of the virtual height of reflection as a function of the radio frequency. The frequency...

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