E3B04 — Amateur Extra Class

E3B04 : What are extraordinary and ordinary waves?
A Extraordinary waves exhibit rare long-skip propagation, compared to ordinary waves, which travel shorter distances
B Independently propagating, elliptically polarized waves created in the ionosphere
C Long-path and short-path waves
D Refracted rays and reflected waves
Correct Answer: Independently propagating, elliptically polarized waves created in the ionosphere