A form of radar display used with continuously rotating antennas, not with sector scanning. So termed because the display uses a long persistence cathode-ray tube excited only when the antenna is directed into a sector from which a reflected signal is received. Cf sector scan,

Link to This Definition

Did you find this definition of SECTOR DISPLAY helpful? You can share it by copying the code below and adding it to your blog or web page.
Edited and fact checked by Pam: Google +