Operation
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3.16.6 Diagnostics
Certain diagnostics information is provided to assist with installation and maintenance of the transceiver. This
can be accessed via the Maintenance menu. Figure 29 shows the diagnostics menu page. A number of
features can be accessed via the diagnostics menu:
●
Internal GPS status provides GPS lock status, number of satellites in view and in use and the mode of
use.
●
ADC and VSWR data provides internal system information for use in installation and maintenance
only.
●
Sensor port status provides details of sensor port settings.
Figure 29 Diagnostics menu
3.17 Tanker mode
To comply with ISGOTT International Safety Guide for Oil Tankers & Terminals a 1W transmission mode is
provided in the AIS transceiver. When the vessel type is defined as a tanker (see section 4.5.3) and the
navigation status is set to ‘Moored’ (see section 4.5.3) then the transmitter power will be automatically reduced
to 1W. An acknowledgement screen as shown in XXX is displayed when this set of conditions is met. A ‘1W’
icon is displayed in the status bar when tanker mode is enabled (see section 3.3).
Figure 30 Tanker mode entry acknowledgement screen
This mode is automatically disabled if the vessel type or navigation status conditions no longer apply. An
acknowledgement screen similar to Figure 1 is displayed when tanker mode has been disabled. Tanker mode
is also disabled if the vessel speed exceeds 3 knots as it is assumed that the vessel is no longer moored above
this speed. In this case the navigation status should be adjusted appropriately and a prompt is displayed as
shown in Figure 2. Selecting the ‘Change’ option will display the voyage data settings where the navigation
status can be updated.
13:20:47
DIAGNOSTICS:
INTERNAL GPS STATUS
ADC and V SWR
SENSOR PORT STATUS
OK
GPS
INT
Respond
D ecline
13:20:47
TANKER MODE:
Entering Tank er Mode
Transmit Power is
Low Power (1W )
OK
GPS
INT
Ack nowledge
