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+--- Тема: NVIS Near Vertical Incidence Skywave (/showthread.php?tid=171)
NVIS Near Vertical Incidence Skywave - mzk - 12-09-2021
https://hamradioschool.com/nvis/
http://arrl-ohio.org/SEC/nvis/nvis.pdf
https://hamradioschool.com/d-layer-absorption/
http://www.astrosurf.com/luxorion/qsl-perturbation.htm