Friday, January 2, 2009

Gray-line :

Gray-line is a gray band between day and night, usually referred to as twilight zone. Dusk and dawn periods produce interesting propagation conditions. This is one reason why DX signal always peak during dusk and dawn period over all East-West, North East-South West and North West-South East paths. This does not apply to North-South.

For current Gray-line : Click here

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