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Seanet Pro Operation
Sector On, Sector – Display a Sector overlay with left and right angular limit adjustment (in
degrees).
Rotation – Rotational offset to correct Sonar heading – (Disabled for Gemini Sonar).
Installation
Figure 7.8.
This configures the location of the Sonar in the real world and enables the Geo-referencing
of sonar targets on the sonar display.
From Fixed Position
From GPS Position
Updates
From USBL Position
Updates
From Marker Positions
Offset (GPS RX to
Sonar)
Document: 0685-SOM-00001, Issue: 12
If there is no GPS input, select this option and input the Sonar
position in Latitude and Longitude co-ordinates (DegMin or
DegMinSec format). A Heading input will also be applied, else a
zero degree heading is applied. If present it is also possible to
set the fixed position from the USBL or GPS input so that they
can be disconnected and the position will remain persistent –
simply click the appropriate button "Set Fixed from GPS" or "Set
Fixed From USBL"
If a GPS input is active, select this option. A Heading input will
also need to be active for the Geo-referencing to be functional.
If a USBL input is active, select this option. A Heading input will
also need to be active for the Geo-referencing to be functional.
This
function
requires
and
displays
Nav
Settings→Applications→Sonar Nav). The chart of the
Nav display is used to obtain the Marker position references to
be used in this function. If a Nav chart is not used then the Marker
positions must be manually entered in the Sonar display.
X and Y position offsets should be entered if there is any offset
between GPS receiver and Sonar (e.g. for a ship hull mounted
system). Or, for an ROV mounted sonar, if the GPS position
updates are the position of a sub/vehicle then this offset may
apply for the separation between a beacon/transponder and the
sonar.
61
Gemini Imaging Sonar
an
application
with
loaded
(e.g.,
by
© Tritech International Ltd.
Sonar
selecting
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