Humminbird 500 specification

wwwClassic layout:..reelscheThe top portion of t e displaympresenatics a histori..coal l gmof sonar returns from the 200 kHz down-looking sonar beam. The bottom portion of the display presents a historical log of sonar returns from the 455 kHz right- and left-looking sonar beams. New information appears at the top, and scrolls down the display.