So the SW listening is dying? I never listened to SW growing up as a kid in 1960s so i never missed the glorious days of the Cold war SW nostalgia:
Historical recordings of interval signals from disappeared stations 1950-180s:
https://youtu.be/sf_UzdvTyKQ
It is a good read about solar winds and sun spots on RF transmission at different SW frequencies:
https://weather.mailasail.com/Franks...ems#ionosphere
I paid one year membership to join QRP UK club last year to get discount on electronic components but I have no idea what is QRP even this day. It is not possible to have a Ham hobby when you live in city and in an apartemt block. So i can only read about Ham radios but not to experience it.