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HomeProducts and ServicesClient SupportStockholm RadioDaily HAP Charts Tuesday, Nov 21 2017 14:00 UT
Client Support

Daily HAP Charts

Stockholm Radio

These are Daily Area Predictions of communication frequencies for the present day and are based on SWS 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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