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   Home right arrow HF Systems right arrow Global HF right arrow HAP Charts FORECAST SOL: Normalgreen MAG: Normalgreen ION: Moderateyellow Saturday, Feb 04 2012 06:24 UT
Global HF 
HAP Charts

    HAP charts are designed for communications between a specified base and mobile within a nominated area.

  • Each chart shows colours which represent the recommended HF frequencies for contacting the base or mobile within the area bounded by the chart for a particular hour.

  • The geographic zone, which is variable, is represented by a map showing latitude and longitude.

  • Charts are in Universal Time (UT).

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