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HomeProducts and ServicesClient SupportSFO ArincDaily HAP Charts Saturday, Jul 05 2025 19:12 UT
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Daily HAP Charts

These are Daily Area Predictions of communication frequencies for the present day and are based on ASWFC average maps of the ionosphere.

Follow the steps below to obtain your daily HAP charts.

Step 1: Select a Location

Step 2: Select a Universal Time (UT) Period

Step 3: Display HAP Chart or Clear selections

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