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![]() Figure 1: DXView of real-time QSOs, on a selected band, or on all bands First click on the above map; then you may click on "Perspective" filling in your QTH location. The DXView map helps identify open bands and communication modes↗ based on real-time activity from the last 15 minutes. It compiles data from online sources: WSPRnet, RBN ↗ (CW, FT4, FT8), and DX Cluster. Signal-to-Noise Ratio (SNR) ↗ data determines if a path supports SSB (SNR > 10 dB), CW (SNR > -1 dB), or only digital modes (decoding down to about -28 dB SNR). The DXView website provides a guide on interpreting the map and selecting band colors.
Figure 2: MUF 3000 km map designed by Andrew, KC2G 1. How to use this online map 2. Additional notes 3. Animated map ![]()
Figure 3: HF Score of 10-17m bands, courtesy HF Activity Group↗
Rapid changes in the global HF propagation conditions are primarily due to variations in the ionosphere, which is affected by solar activity and geomagnetic storms. These factors influence the ionosphere's ability to bounce skywaves, leading to changes in signal strength, signal-to-noise ratio, coverage, and the potential for skip zones. Read more.
Click on Figure 4 to read explanations. The HF Propagation page provides detailed overview and tutorials on additinal aspects of HF propagation. |