48
10
MAINTENANCE
10
15
18
13
11
16
14
12
17
1
7
4
2
8
5
3
9
6
■
Error messages
An error message is displayed when a malfunction occurs that has an error message
programmed for it.
Message contents
Description
GPS malfunction No
GPS data
Displayed when no GPS data is received for 60 seconds.
RX malfunction No
RCV
Displayed when the transponder receive circuit has failed.
RX malfunction CH A
noise level
Displayed when excessively strong atmospheric noise, or
noise signals from other navigation equipment, are received on
Channel A.
RX malfunction CH B
noise level
Displayed when excessively strong atmospheric noise, or
noise signals from other navigation equipment, are received on
Channel B.
TX malfunction No TX
power
Displayed when no RF power is output, or the transmit circuit has
failed.
TX malfunction
Continuous TX
Displayed when the protective circuit cuts off the AIS signal after
1 second of continuous transmission.
Antenna malfunction
High VSWR
Displayed when the high VSWR* is detected (the antenna is
mismatched) for 5 minutes.
*Voltage Standing Wave Ratio
Antenna malfunction
Open or Short
Displayed when the antenna is open or shorted.
Summary of Contents for MA-510TR
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