Northrop Grumman Sperry Marine VisionMaster FT, Руководство пользователя

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Presentation, Motion, Vector Radar/Chart Radar User Guide
and Trail Modes
5-2 65900010
Presentation Modes
Data from the compass can be processed to produce a correct ‘stabilised
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’
display. There are three types of stabilised mode available: Stabilised
Head Up , North-Up and Course-Up . A valid source of heading data must
be selected to use a stabilised mode. Without a compass input, the display
is 'unstabilised’
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and is shown in Unstabilised Head-Up mode.
The currently selected presentation mode is shown
on the presentation mode button. The following
modes may be available for selection:

Unstabilised Head-Up (H Up unstab)
This is the power up presentation mode for vector charts.
Unstabilised Head Up is a relative display (motion mode and trails
mode are both relative and own ship vector is not displayed) with
the ship’s heading marker always shown vertically upwards
indicating straight ahead movement, irrespective of own ship's
current bearing. The bearing scale is always drawn with 000° at the
top of the video circle.
A permanent prompt indicating unstabilised radar video will be
displayed when the presentation mode is Unstabilised Head Up.
In Unstabilised Head Up ownship circle symbol is not displayed if
the range scale is greater than 3 NM. The circle symbol is restored
if the range scale is 3NM or lower.
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In a stabilised presentation mode radar video and trails are maintained relative to a fixed
true bearing. A valid source of heading data must be selected to use stabilised mode.
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In an unstabilised mode radar video and trails are maintained relative to the ship's fore/aft
axis.