You are referring to a phenomena much beloved of shortwave and AM radio listeners, called simply "prop". After dark at night, the atmospheric conditions - especially in the winter time - allow for "bounce" of radio waves off the higher levels of the atmosphere. The effect can't be predicted precisely as far as effect, but the constant in it is that those radio waves travel much
further than they would in the daytime. In AM radio: A 5,000 watt station will carry only about as far as the deep suburbs of a city in the daytime. At night, especially in the winter, it will sometimes carry 2,500 miles - I speak from experience, I've logged it. Short Wave is the same, only more so: I have identified and logged a 1,000 watt station from Paraguay on a winter night. I live in Michigan, USA. That is roughly the equivalent of seeing a candle burning ten miles offshore at sea. And it's all because of propagation.
Zhu Han has written: 'Game theory in wireless and communication networks' -- subject(s): Wireless communication systems, Computer networks, Mobile communication systems, Game theory, Telecommunication systems
Wave propagation
What Is Wireless Communication Of VGN
what is wireless communication
it uses wireless web communication technology
wireless communication block diagram
Difference? Wireless allowed widespread, i.e. broadcast, communication.
Pagers are a form of wireless communication
Rectilinear propagation of light theory states that light travels in a straight line.
Spending on wireless communication equipment was $123.4 billion in 2003
Yes, it is.
One type of wireless communication is smart phones. Other types of wireless communications are cell phones, tablets, and iPads.