Use APKPure App
Get HF Propagation old version APK for Android
Solar Data Summary Available.
HF Propagation App uses solar data feed from hamqsl.com. HF Propagation predictions are calculated using the available data. The actual conditions at your location will depend on a lot of additional factors. The only sure-fire way to determine if the bands are open is to get on the air. Please head over to hamqsl.com to find out more about how to interpret the data in this app.
Data and XML Feed provided by HAMQSL.com