9. MAINTENANCE, TROUBLESHOOTING
9-7
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 RF CON/CPU Board in
communication unit. OK appears for figure greater
than 31.
Send Level: TX level check. At transmission, OK appears for
figure greater than 123. At reception, OK appears for
figure lower than 32.
RX AGC Level: Check of the receiving circuit of the antenna unit and
the RF CON/CPU 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 RF CON/CPU Board.
VCXO 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.
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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