| Propagation Solar Cycle | Click ↓ | Votes ↓ | Flag ↓ |
| Amateur Radio Propagation Studies, DF5AI Thunderstorm effects on 144 MHz sporadic E communication |  | ||
| Dx propagation wwv predictions dynamic collection of propagation information gathered from many different sources |  | ||
| HF Propagation Models The software contained within was developed by an agency of the U.S | | ||
| HF Propagation Using Solar Indices Quick Guide to HF Propagation Using Solar Indices | | ||
| HF propagation aurora auroral troposphere HF Propagation Tools and Solar |  | ||
| Prophf Uses the same calculations methods and procedures than DXPROP |  | ||
| Propagation Tools, NB6Z The Solar Flux Index is a gauge of solar particles and magnetic field | | ||
| Radio Propagation Introduction Ham Radio operators, shortwave radio enthusiasts often talk about propagation | | ||
| Solar Activity and Climate Space weather may also in the long term affect the Earth's climate. Solar ultra-viole | | ||
| Solar activity and geomagnetic forecast,F5LEN Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Cente | | ||
| Solar Cycle Progression The charts on this page depict the progression of the Solar Cycle | | ||
| Solarcycle24.com Solar Cycle 24, Spaceweather, Amateur Radio VHF Aurora | | ||
| Topband - 160 meter Radio Propagation Welcome to the Topband radio propagation section! In this area | | ||
| Understanding Solar Indices Long distance HF radio communications is made possible by a region of charged particles | |
Modif. May 26 2020