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Questions about RF propagation including measurements, beacons, modes (ionospheric, tropospheric, ground wave), etc.

3 votes
1 answer
2k views

Where does the year 2019 fall in the sunspot cycle for HF propagation?

I am reposting this question about the year 2016 here. This is 2019. Are we now at the good or bad portion of the 11 years cycle? What effect are we seeing now? How large (strong/deep) is the effect …
Mike Waters's user avatar
  • 8,174
0 votes
1 answer
125 views

Does the E-field propagate faster that the H-field?

I need some proof that the electric (E-field) and the magnetic component (H-field) of a lightning stroke both propagate at the speed of light, and that there is not a significant delay between them. …
Mike Waters's user avatar
  • 8,174
16 votes
7 answers
14k views

What is the cause of this unusually long period of terrible HF band conditions?

I've been a ham for over 40 years, but never has there been such a prolonged period of such poor propagation. …
Mike Waters's user avatar
  • 8,174