Day time is ideal for long distance radio transmission. Why ?
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A radio device receives many signal frequencies at night from broadcasting stations even coming from far countries, while this phenomenon disappears during the daytime.
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Day time is not ideal for the long distance radio transmission.
The radio device can receive multiple signal frequencies at the time of night from the broadcasting stations of distant countries.
The phenomenon disappears in morning. The Ionosphere can be the reason as SUVR (solar UV radiation) enhances the rate of ionization while it does not work at night.
As it gets diluted at night, night is ideal for the long distance radio transmission.
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