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6-2
Interpreting Readings and Advanced Operation
In this section, the number beside each header corresponds to the
same number in the illustration of the SPEED DATA MODE screen
on the preceding page. If there is an operation related to a headed
item, the operating procedure is shown.
Monitors received echoes for the past two minutes, showing echo
type as follows.
Three modes are available:
• Ground tracking echo (green)
• Water tracking echo (blue)
• No echo (background color)
Press the TRACKING MODE key to change the tracking mode.
• Auto: Automatic changeover between ground tracking and water
tracking.
• Ground: Ground tracking
• Water: Water tracking
Value over-the-ground or through-the-water is displayed as
determined by the tracking mode.
Value over-the-ground or through-the-water is displayed as
determined by the tracking mode.
Value over-the-ground or through-the-water is displayed as
determined by the tracking mode
The speed and course measured by a nav sensor (GPS, Loran C)
are displayed. Note that only true course is displayed. If the speed
or course signal is lost the respective indication is erased 30
seconds later.
Selecting nav sensor
The nav sensor may be selected on the parameter set menu. See
page 9-13.
The under-keel clearance measured by the DS-30 or external
sounder is displayed.
1. Echo Monitor
2. Tracking Mode
3. Transverse at
Speed at Bow
4. Longitudinal
Speed
5. Transverse
speed at Stern
6. Nav Speed/
Course
7. Under-keel
Clearance
(UKC)