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The most recently viewed scanning direction deter-
mines the origin of the data displayed in the down-
looker window at any time. Both arrays are capable
of imaging the bottom in shallow conditions. How-
ever, the vertical array has more power to better
image the bottom beneath the vessel in deeper wa-
ter.
If you wish to see downlooker data from the hori-
zontal array, select HORZ or HSPLIT before select-
ing the DOWN display. To see downlooker data
from the vertical array, select VERT or VSPLIT
before selecting the DOWN display.
VSPLIT: Vertical Split-Screen
Display
The VSPLIT display shows downlooker data in the
left portion of the window and the forward vertical
scan in the right portion of the window. The down-
looker data occupies one quarter of the horizontal
dimension of the window and the vertical scan oc-
cupies the remainder of the space.
Both portions of the display are equivalent in func-
tion to the individual DOWN and VERT displays.
However, PC/180 will always use the Gain, Range
and Alarm settings that are associated with the ver-
tical scan.
HSPLIT180: Horizontal Split-Screen
Display
The HSPLIT180 display shows downlooker data in
the left portion of the window and the horizontal
180-degree scan in the right portion of the window.
The downlooker data occupies one quarter of the
horizontal dimension of the window and the hori-
zontal scan occupies the remainder of the space.
The two portions of the display are equivalent in
function to the individual DOWN and HORZ180
displays. However, PC/180 will always use the
Gain, Range and Alarm settings that are associated
with the horizontal scan.
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