Does Radio Wave Efficiency Increase at Night? Exploring Tropospheric Enhancement

In summary, radio waves are able to travel long distances due to their longer wavelengths and ability to bounce off of objects. They carry information through modulated electric and magnetic fields. Radio waves can pass through most materials, but can be blocked or reflected by certain materials. Compared to other types of electromagnetic waves, radio waves have the longest wavelengths, lowest frequencies, and lowest energy. While generally considered safe for humans, excessive exposure to high levels of radio waves can have harmful effects.
  • #1
xhm100
2
0
...efficently at night time? :zzz:
 
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  • #3
xhm100 said:
...efficently at night time? :zzz:

Radio waves do not work more efficiently or less efficiently depending on the time of day. You probably mean "why can radio signals be picked up at greater distances at nighttime than during the day?"
 
  • #4
See also the section "Tropospheric Enhancement" at

http://home.cogeco.ca/~vem3ont22/propagation/tr-modes.htm
 
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1. Why are radio waves able to travel long distances?

Radio waves have longer wavelengths than other types of electromagnetic waves, such as visible light. This allows them to travel through the atmosphere and bounce off of objects, which helps them travel longer distances.

2. How do radio waves carry information?

Radio waves are made up of oscillating electric and magnetic fields. These fields can be modulated to carry information, such as sound or data, through changes in frequency, amplitude, or phase.

3. What materials can radio waves pass through?

Radio waves can pass through most materials, including air, water, and even some walls. However, certain materials, such as metal, can block or reflect radio waves.

4. How do radio waves differ from other types of electromagnetic waves?

Radio waves have the longest wavelengths and the lowest frequencies among all types of electromagnetic waves. They also have the lowest energy and are the only type of electromagnetic wave that can be directly detected and used for communication.

5. Can radio waves be harmful to humans?

Radio waves are generally considered safe for humans, as they have lower energy and longer wavelengths than other types of electromagnetic waves. However, excessive exposure to high levels of radio waves can cause heating of tissue and potentially harmful effects.

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