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JMA-9172-SA Instruction Manual
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7.SETTINGS FOR SYSTEM OPERATION
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7.3 ADJUSTMENT
7.3
ADJUSTMENT
This section describes the electrical adjustment procedures to be performed by
service engineers during system installation.
7.3.1
Noise Level Adjustment (Noise Level)
7.3.1.1
Noise Level Adjustment for Signal Processing
Procedures
1)
Open the Serviceman Menu.
2)
Perform the following menu open procedure to open the noise
level adjustment menu.
→
→
3)
Increase/decrease the noise level adjustment value.
The noise level is factory-set. (Initial value: 140)
After system installation, a great change in the noise level adjustment value should be
avoided; it should be fine adjusted within
±5.
Do not carry out the adjustments of the equipment
except authorized service persons. If wrong setting is
carried out, this may cause unstable operation.
Do not carry out the adjustments during navigation.
Otherwise, the radar performance may be affected,
resulting in an accident or trouble.
9. RADAR/TT Initial Setup
1. Signal Processing
1. Echo Noise Level
Summary of Contents for JMA-9172-SA
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Page 17: ...xv NDC 1478 Radar Process Unit Desktop Type Warning Label...
Page 18: ...xvi NQE 3141 4A 8A Interswitch Unit Warning Label...
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Page 22: ...xx Radar Process Unit Type NDC 1478 Desktop type DISPLAY UNIT TYPE NCD 9170T DESKTOP TYPE...
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Page 226: ...3 130 JMA 9172 SA Instruction Manual 3 BASIC OPERATION 3 12 RECEIVE PORT SETTING...
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Page 326: ...6 14 JMA 9172 SA Instruction Manual 6 TRUE AND FALSE ECHOES ON DISPLAY 6 5 DISPLAY OF AIS SART...
Page 372: ...7 44 JMA 9172 SA Instruction Manual 7 SETTINGS FOR SYSTEM OPERATION 7 4 MAINTENANCE MENU...
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