horizontal scan frequency


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horizontal scan frequency

The number of lines illuminated on a CRT in one second, which is based on how fast the electron beam moves across the screen from left to right and back again. For example, a resolution of 400 lines refreshed 60 times per second requires a scan rate of 24 kHz (60 x 400) plus time to bring the beam back to the beginning of the next line. Same as "horizontal sync frequency" in TV. Contrast with vertical scan frequency.
References in periodicals archive ?
The 447Xpro /a operates at a refresh rate of 90 Hz with a resolution of 1280 x 1024, and has a remarkable horizontal scan frequency of 96 kHz, creating sharp, flicker-free images.
Other enhancements above the current 445Xi monitor include a boost in horizontal scan frequency from 102 kHz to 110 kHz for high-quality image performance and a maximum bandwidth of 230 MHz.