From September to April of each year, as long as there are no geomagnetic storms or high-frequency bands, the 15, 12, and 10-meter frequencies will be excellent. Yesterday, a pull-down antenna on my balcony connected to Peru with frequency 28074. However, good times don't last forever; around 2026, solar activity will start to decline, gradually returning to an era where the spectrum is cleaner than ever before, with a cycle of about 10 years.
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