8. MAINTENANCE AND TROUBLESHOOTING
8-5
How to read the system status monitor
Date: Current date.
Time: Current time.
Position: Own ship L/L position (either manual entry or automatic input by navigator).
Waypoint: L/L position of destination waypoint set on navigator.
Course: Course.
Speed: Ship’s speed.
Current NCS: NCS your vessel is logged in with.
Current Channel: Channel in use.
Current TDM: Channel TDM.
MES Status: Operational status of MES.
GPS Status: Receiving signal status from GPS receiver.
CST: Cold Start
ACK: Acquired; Almanac data acquired.
IMP: Impossible; cannot receive GPS signal.
INT: Interrupted; object interfering with reception of GPS signal.
ALM: Receiving the almanac.
2D, 3D: Position-fixing method by 2D or 3D.
DCE Memory: Memory remaining in communication unit.
BBER: Bulletin Board Error Rate (%).
C/N: Check of circuit status with LES, receiving circuit in antenna unit and COMMCPU
Board in communication unit. OK appears for figure greater than 31.
Send Level: TX level check. At transmission, OK appears for figure greater than 100.
At reception, OK appears for figure lower than 32.
RX AGC Level: Check of the receiving circuit of the antenna unit and the COMMCPU
Board in the communication unit. OK appears for figure greater than 60.
REF Offset Freq: OK appears for figure lower than 150.
Synthe Local: Check of COMMCPU Board.
TCXO Control: Oscillator frequency control value.
Antenna Power Supply: NG appears for discontinuity or short in antenna cable. OK
is shown if the antenna is receiving electrical power.
Water Temperature*: Water temperature.
Water Current*
Direction: Tidal current direction.
Speed: Tidal current speed.
Depth*: Depth of water.
* Requires data from appropriate sensor.
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