Frequency conversion is the process of changing the frequency of a signal to a different value. This is commonly used in telecommunications and broadcasting to ensure that signals can be transmitted and received effectively. By converting frequencies, devices can operate on different channels or bands, allowing for better communication and reduced interference. There are various methods for frequency conversion, including mixing, modulation, and demodulation. These techniques help in adjusting the frequency of signals for various applications, such as in radio transmitters and receivers. Frequency conversion is essential for enabling devices to communicate over long distances and across different platforms.