Axnes AS
Document number
Revision
Date
AX-PNG-UMAN-1219
Issue C
2018-Jun-05
Page 2-12
Confidential document and information
The position will appear in the display, initially with dashes, indicating that the position is not
available, while waiting for the GPS lock. As soon as GPS lock is established, the long/lat
position of the handheld will be displayed. The position is updated at a configurable interval,
with a default value of 10 seconds. The position age counter in the top right corner indicates
the age of the shown position. If the handheld loses GPS lock or loses contact with the PNG
Base Station, the last known position will remain in the display while the age counter
continues to count.
2.10.3 Map system
The position of the handhelds can be reported to a map system connected to the PNG Base
Station. The position reporting is turned on and off through the menu on the PNG Control
Panel.
The position is polled at a configurable interval, and reported to the map system at the same
rate. The actual poll rate is dependent on the number of handhelds with active GPS. It is
possible to disable GPS reporting from the individual handhelds by using the menu in the
handheld.
2.10.4 AIS Activation
For handhelds equipped with AIS functionality, the position of the handheld can be sent with
a message format compatible with standard AIS position reports, using the AIS-SART
format. This functionality can be activated either from the handheld with the AIS-button, or it
can be activated remotely from the AIS-menu on the PNG Control Panel.
From the menu on the PNG Control Panel the state of the AIS position reporting for each
handheld can remotely be set to either Off, Test or Active.
•
The Off-option will deactivate sending of AIS position reports from the chosen
handheld.
•
The Test-option will activate sending of one burst of AIS test messages from the
chosen handheld and then deactivates.
•
The Activate-option will activate sending of standard AIS-SART position reports from
the chosen handheld.
Note: Activation of either of these options will override the current state for the chosen
handheld. If the handheld was currently active sending AIS position reports, choosing the
Off-option from the PNG Control Panel menu will deactivate sending of AIS position reports.
When remotely changing the handheld AIS state, this will give an audio feedback to the
handheld user, either via the headset or the internal loudspeaker.
Note: The PNG handhelds are NOT AIS-SART transponder, but implements functionality to
send AIS-SART compatible messages to improve ongoing operations.
