duty cycle

1. The proportion of time that a system, device, or component on intermittent duty is operating, rather than remaining idle. The duty cycle includes the time starting, running, stopping, and idling and generally is expressed as a percentage or fraction.A compressor, for example, that operates for 1 minute and then shuts off for 99 minutes, is said to have a duty cycle of 1⁄100, or 1 percent. 2. In pulse systems, such as digital fiber optic transmission systems (FOTS) or baseband digital electrical transmission systems, the ratio of the sum of all pulse durations to the total period, during a specified period of continuous operation, with the pulse duration, including the rise to peak power and the fall to zero power. See also baseband, digital, FOTS, and pulse.

• high frequency (HF)
• High-Level Data Link Control (HDLC)
• high-order mode
• high-pass filter
• High Performance Parallel Interface (HIPPI)
• high speed
• high-speed channel (H channel)
• High-Speed Circuit Switched Data (HSCSD)
• High Speed Downlink Packet Access (HSDPA)
• High Speed Uplink Packet Access (HSUPA)
• high-tier
• high voltage (HV)
• HiperACCESS (High performance radio ACCESS)
• HiperLAN/1 (High performance radio Local Area Network version 1)
• HiperLAN2 (High performance radio Local Area Network version 2)
• HiperMAN (High performance radio Metropolitan Area Network)
• HIPPI (HIgh Performance Parallel Interface)
• Hockham, George
• hold
• hold
• Holmes, E.T.
• home page
• home page
• HomePlug
• home run