Distinction Between Sky Wave and Communication System

Sky Wave

• Definition: Sky waves are radio waves that are reflected off the ionosphere and can travel long distances.
• Usage: Commonly used in long-range radio communication, such as AM radio.
• Characteristics:
  • Propagation: Can bend around the Earth, making them useful for reaching distant locations.
  • Frequency: Typically operates below 30 MHz.
  • Limitations: Can be affected by atmospheric conditions, which may cause interference.

Communication System

• Definition: A communication system refers to the entire setup used to transmit and receive information, including hardware, software, and protocols.
• Components:
  • Transmitters: Devices that send out signals.
  • Receivers: Devices that capture signals.
  • Medium: The channel through which signals travel, such as air or cables.
• Types: Includes various forms like radio, television, internet, and telephony.

Summary

Sky waves are a type of radio wave used for long-distance communication, while a communication system encompasses all tools and processes for transmitting information.