An OCXO, or Oven Controlled Crystal Oscillator, is an electronic crystal oscillator with a temperature-stabilizing oven. The oven of the OCXO maintains a steady temperature through the use of a thermal sensor and an active temperature-control system. The temperature control helps to reduce the effects of temperature variations, increasing the accuracy and stability of the oscillator. OCXOs can be used in applications that require a highly stable, precise frequency reference for measuring frequencies, for calibration of radio equipment, for navigation equipment and for radio transmitters. Additionally, some OCXOs are designed specifically for use in military and telecommunications systems for secure communications and radar. Additionally, OCXOs are also used for timing and control applications in industries such as robotics, medical technology and industrial controls.