Furuno CSH-5 MARK-2 Operator's Manual page 12

EVENT displays the latest event mark " + " and its position data; i.e.,
EVENT
horizontal range, depth and bearing measured from own ship's posi-
tion. (optional interface board is required to use this function.)
To delete event mark, locate the cursor on a event mark you want to
EVENT
DELETE
delete and press EVENT DELETE key.
R/B draws a straight line, called Bearing Mark, from own ship posi-
R/B
tion mark " " toward the trackball mark "
draws a circle called Range Mark with a radius of
and bearing data of the intersection of the two marks are displayed on
the lower center of the screen. To turn off the range and bearing marks,
move the trackball mark near the own ship position mark and press
the R/B key.
OFF-CENTER moves the own ship's mark to a desired location on
OFF-
CENTER
the screen in steps of 1/6 of screen radius. To off center the screen,
place trackball mark on location to offcenter and press the OFF-CEN-
TER key. To reset the off-centered own ship's mark, press the OFF-
CENTER key again.
AUTO TILT automatically tilts the sounding beam up and down within
AUTO
TILT
the tilt angle set on the menu screen.
SECTOR SCAN scans the bearing mark in 2 steps within the area
SECTOR
SCAN
selected on the menu screen. The echoes along the marker can be
monitored thru the built-in speaker. The lamp at the left of the switch
lights during sector scanning.
These keys provide user-defined sonar setting by one key operation.
F1 F2
These keys have factory settings. See page 22.
6
" and simultaneously
to . Range