Hertz (Hz)
The hertz (Hz) is the internationally recognized unit for measuring frequency, representing one cycle occurring each second. The unit honors Heinrich Hertz, a pioneering German physicist who, in the late 1800s, experimentally confirmed the presence of electromagnetic waves. Since its adoption, the hertz has served as the fundamental standard for tracking repeating events in fields such as physics, engineering, radio, and telecommunications. Its use streamlines the measurement and comparison of various oscillating phenomena, ensuring consistency across scientific and technical disciplines.
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.