acti - airp
- action
- actiontrack system
- activate button
- activate key
- activation
- activator
- active antenna
- active array
- active bandpass
- active circulator
- active conductance
- active current component
- active curtain
- active device
- active display
- active domain
- active electrode
- active equipment
- active fiber-optic system component
- active file
- active filter
- active filtering
- active four-terminal element
- active hub
- active image area
- active infrared motion detector
- active IR-system
- active line
- active line duration signal
- active line time
- active load
- active load management
- active material
- active mode
- active network
- active oscillator
- active parasitics
- active pause circuit
- active picture area
- active power balance
