Operation
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3.2 Turning the transceiver on
The transceiver does not have a power switch and is designed to be permanently powered. When power is first
applied the display will show the text ‘Automatic Identification System’ for 5 seconds before the main operating
screen is shown.
3.3 Display layout
The display layout is shown in Figure 3. All operating screens show the time, status bar, scroll indicators and
relevant function keys. The time displayed is UTC time.
When no UTC time is available from the internal GNSS module the time display will show --:--:-- in place of the
time of day.
Figure 3 Display layout
3.3.1 Status bar icons
The status bar shows the current transceiver status using icons. The meaning of each icon is described in Table 1.
Icon Description
OK The transceiver is operating normally.
Tx Shown for one second following each transmission.
Rx Shown for one second following each received message.
INT
GPS
Shown when the internal GNSS receiver is set to GPS mode
and has a valid position fix.
INT
GNSS
Shown when the internal GNSS receiver is set to GLONASS
mode or GPS+GLONASS mode and has a valid position fix*.
EXT
GNSS
Shown when a connected external GNSS receiver has a valid
position fix*.
INT
DGPS
Shown when the internal GPS receiver is set to GPS mode
and has a valid differential position fix.
INT
DGNSS
Shown when the internal GNSS receiver is set to GLONASS
mode or GPS+GLONASS mode and has a valid differential
position fix*.