AIS data troubleshooting

TroubleshootingAIS dataTroubleshooting

No AIS targets shown on the display:

Possible causes	Possible solutions
Data / network problem	Review and carry out solutions detailed in the Missing, conflicting or erratic data table below.
VHF antenna fault	Check the VHF antenna is properly connected and is not short circuiting to the vessel’s structure.
GNSS (GPS) antenna fault	Check the GNSS (GPS) antenna is properly connected and is installed in an appropriate location (e.g.: with a clear view of the sky).
AIS feature not enabled on display	Refer to the Operation instructions for your display to identify how to enable the AIS feature.
MFD set to display Dangerous or Buddy targets only and none are in range of your vessel.	Refer to the Operation instructions for your display to identify how to enable the display of all AIS targets.
No AIS equipped vessels in range.	Wait for more vessels to be in your vicinity and check again (e.g.: in a marina).

Missing, conflicting or erratic data:

Possible causes	Possible solutions
MMSI number and / or static data not configured.	Configure the product with an MMSI number and correct static data using the proAIS2 software and a PC. Refer to Configuration for details.
AIS configuration, static data is not being saved.	Disconnect all connections then connect only the USB cable to a PC and retry configuration.
AIS hardware not detected by display	Check all connections are secure and free from damage; replace if required. When connected using NMEA 0183, ensure the port used to connect the product to your MFD is set to 38,400 baud rate. Also check that the port is configured to output AIS data (usually Port 1 outputs AIS data by default). Ensure the MFD is connected to the same SeaTalkng® / NMEA 2000 network as your display, or that the MFD is connected directly to the relevant NMEA 0183 connections.
SeaTalkng® / NMEA 2000 and NMEA 0183 connected at the same time, to the same device	Ensure only one connection is made, either SeaTalkng® / NMEA 2000 OR NMEA 0183.
Multiple AIS receivers/transceivers connected and operating	If your system includes more than one AIS receiver/transceiver, ensure that only one is powered on or transmitting.