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amaresh92
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can anyone tell me why do we use high frequency in communication? why we can't just use low frequency signal for these ?
amaresh92 said:can anyone tell me why do we use high frequency in communication? why we can't just use low frequency signal for these ?
High frequency communication refers to the use of electromagnetic waves with frequencies between 3 and 30 MHz to transmit information over long distances. These waves are able to travel through the Earth's atmosphere and are commonly used for long-range communication.
High frequency communication works by using a transmitter to send a radio signal at a specific frequency and a receiver to pick up that signal. The information is encoded into the signal and can then be decoded by the receiver. The signal is able to travel long distances due to its ability to bounce off the Earth's ionosphere layer.
One advantage of high frequency communication is its ability to travel long distances. It also has a lower cost compared to other forms of long-range communication, making it a more affordable option for many industries. Additionally, high frequency waves can easily penetrate through obstacles such as buildings and mountains, making it a reliable form of communication in remote areas.
One limitation of high frequency communication is its susceptibility to interference from other electronic devices and natural phenomena such as solar storms. This can cause disruptions or distortions in the signal. Additionally, high frequency waves have a limited bandwidth, meaning they can only transmit a certain amount of information at a time.
High frequency communication is commonly used in military and aviation industries for long-range communication. It is also used for amateur radio, maritime communication, and emergency communication. Other applications include broadcasting, international shortwave radio, and weather forecasting.