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   Home right arrow Products and Services right arrow Client Support right arrow SFO Arinc right arrow Hourly HAP Charts FORECAST SOL: Normalgreen MAG: Normalgreen ION: Moderateyellow Friday, Feb 10 2012 09:05 UT
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Hourly HAP Charts

These are Hourly Area Predictions (HAP) of communication frequencies based on current observed global ionospheric world map. Because of the variability of the ionosphere this type of prediction can only be made for the current hour.

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