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HomeProducts and ServicesClient SupportHF Radio ClubDaily NAP Charts Monday, Apr 27 2026 12:28 UT
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Daily NAP Charts

HF Radio Club

These are Daily Network Area Predictions (NAP) 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 NAP 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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