Megahertz (MHz)
The megahertz, symbol MHz, equals one million hertz and is commonly used to describe radio frequencies, microprocessor clock speeds, and wireless communications. As technology advanced from kilohertz applications, the 20th century saw the introduction of megahertz, providing a practical scale for high-frequency signals. It is especially relevant in radio, television, mobile networks, and computing. The unit ensures clarity and precision when dealing with millions of cycles per second, making it indispensable for engineers, technicians, and hobbyists alike.
Kilohertz (kHz)
The kilohertz, symbol kHz, is equal to 1,000 hertz. Building on the foundation set by the hertz, this unit was introduced to measure higher-frequency signals, such as radio waves, audio frequencies, and electronic circuits. Kilohertz is particularly common in broadcasting, audio engineering, and communications. The unit simplifies large frequency measurements, allowing engineers and scientists to describe thousands of cycles per second concisely and accurately. Its widespread adoption facilitates precise communication of frequency data in both professional and educational contexts.