Lowrance 988-0161-011, Инструкция по эксплуатации

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Radar Range selected (left). List of radar ranges (right).
To turn on or turn off Radar Echo Expansion:
Highlight
R
ADAR
E
CHO
E
XPANSION
on the radar menu, then press
ENT
to
turn it on (check) or turn it off (uncheck). Press
EXIT
to clear the radar
menu. Radar Echo Expansion is good for seeing weak echo returns —
like birds — at a distance.
Remember, when Echo Expansion is on, all signals on the display will
be enlarged, including clutter.
Echo Trail Interval
This option allows you to compile a history (trail) of the movements of
all radar targets via preset intervals.
To adjust Echo Trail Interval
1. Select
E
CHO
T
RAIL
I
NTERVAL
from the radar menu and press
ENT
, which
will launch the Echo Trail Interval menu.
2. The Echo Trail Interval menu will display a series of intervals with
options ranging from Continuous to Off. Use
↑ ↓
to highlight the de-
sired interval and press
ENT
. Press
EXIT
to get back to clear the menu.
NOTE:
This feature is best used in open water or when your vessel is sta-
tionary and you are tracking a moving target. If Echo Trail Interval
is on and your vessel is moving, the display will be crowded with
trails for every target, including stationary targets, like lighthouses
and land.
Clear Radar Trails
This feature is used to clear radar trails created with the Echo Trail
Interval command.
To clear radar trails:
Highlight
C
LEAR
R
ADAR
T
RAILS
on the radar menu and press
ENT
. All ra-
dar trails are now cleared off the radar display.