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ionospheric propagation

  1. G3YWX
    Thread

    Understanding Grey Line Propagation

    Grey line propagation provides surprisingly long distance radio communications at dawn and dusk - sometimes when other forms of ionospheric...
    Thread by: G3YWX, Oct 26, 2020, 0 replies, in forum: General Announcements
  2. G3YWX
    Thread

    What do Solar Indices Mean?

    Anyone wanting to use the HF bands will need to know something about ionospheric propagation. Some days the bands are good and other days they may...
    Thread by: G3YWX, Oct 16, 2017, 2 replies, in forum: General Announcements
  3. G3YWX
    Thread

    How to relate solar indices to HF propagation

    HF propagation is notoriously variable as the state of the ionosphere changes. As the ionosphere is created chiefly by radiation from the Sun, the...
    Thread by: G3YWX, May 17, 2016, 15 replies, in forum: Amateur Radio News
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