User's Manual

Table Of Contents
NACOS Platinum
ED 3100 G 110 / 02 (2011-10)
Operating Instructions
A-7 Target Handling
A RADAR.fm / 10.11.11
A-82
7.16 AIS Malfunctions
There are a couple of possible reasons for which the RADAR or the AIS cannot compute or transmit the
target data correctly:
- In case that the compass system is faulty, the RADAR goes immediately into the Head-Up mode and
all AIS and ARPA targets are deleted at once on the PPI. The target list for the AIS targets remains
available.
- If the UHF-Transceiver within the AIS electronics unit does not work correctly, no messages can be
received and/or transmitted.
- In case that the internal GPS receiver within the AIS electronics unit does not work correctly, the
position data of an external position sensor will be used for computation, if an external sensor is
connected to the AIS electronics unit.
Anyway, appropriate alarm messages, warnings, or indications will be raised.
Possible alarm messages, warnings or indications
1)
:
1. TX Malfunction
2. Antenna VSWR exceeds Limit
3. Rx Channel n malfunction
4. General failure
5. MKD connection lost
6. External EPFS lost
7. No Sensor Position in use
8. No valid SOG Information
9. No valid COG Information
10. Heading lost/invalid
11. No valid ROT Information
For further information regarding these alarms please See chapter 2.2.3 on page V-19
See chapter 1 on page F-3 for details on AIS in general.
1)
The availability of the above mentioned AIS alarms depends on the maker and type of AIS electronics which is
connected to the system.