line frequency Also called horizontal line frequency or horizontal frequency. 1. In television, the number of times per second the scanning spot crosses a fixed vertical line in the picture in one direction, including vertical-return intervals. 2. The nominal operating frequency of the power-line voltage used to supply operating power to instruments or equipment.
line-frequency regulation The change in output (current voltage or power) of a regulated power supply for a specified change in line frequency.
line group The frequency spectrum occupied by a group of carrier channels as they are applied to a transmission facility.
line hit An electrical interference causing the introduction of spurious signals on a circuit.
line hydrophone A directional ...
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