skip zone การใช้

• Skip zone is the subject of a film'SKIPZONE'made in 1992 by UK artist, Peter Lee-Jones.
• A skip zone is an annular region between the farthest points at which the ground wave can be received and the nearest point at which the refracted sky waves can be received.
• At higher latitudes, a noticeable skip zone sometimes appears on the band during darkness hours in midwinter, which can be as much as 300 miles / 500 km, rendering communication with some nearby stations impossible.