3. ADJUSTMENT
This section covers adjustment of the radar after installation. You will need to
•adjust tune/video amplifier level
•enter antenna height
•align heading
•adjust sweep timing
•adjust main bang suppression
•select STC curve
•set a dead sector, and
•confirm magnetron heater voltage.
These adjustments are done through the in- stallation setup menu.
3.1 Preparation
Most adjustments and initial settings may be completed on the Installation Setup menu, and you can display this menu as follows:
1.Turn off the radar. While pressing and holding down the [GAIN] control (at least three seconds), press the [POWER] key.
2.Press the [MENU] key, select “OTHERS” by using the omnipad, and press [ACQ/ ENTER] key.
3.Select “24. Installation Setup”.
4.Press the [ACQ/ENTER] key to open the Installation Setup menu.
[ Installation Setup ]
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| Select item by omnipad |
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| GPS | LC | |||||
| . Nav Talker |
| All |
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2 | . Depth Unit |
| m |
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| fa | ft | |
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| ß F |
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3 | . Temp Unit |
| ß C |
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4 | . Hdg Sensor |
| Magnet | Gyro |
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5 | . Key Beep |
| Off | On |
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| Stop |
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6 | . Ant on Tx |
| Rotate |
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7 | . Dead Sector | 180ß ~180ß |
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8 | . Tuning/Video Auto Adjustment |
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9 | . Heading Alignment |
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10.Sweep Timing Adjustment
11.MBS Adjustment
12. | Ant Height | Low | Mid |
| High |
13. | STC Curve | Sharp | Std | Gntl | |
14. | Ope Mode | Master | Slave |
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15. | Hours in Use | 000001.5H |
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16. | Tx Hours | 000000.0H |
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Figure 3-1 Installation Setup menu
3.2 Adjusting Tuning/Video
Do the following to automatically adjust tun- ing and video amplifier level input.
1. Press the [STBY/TX] key to transmit.
WARNING
Before transmitting the radar make sure no one is near the scanner unit, to pre- vent the potential risk of being struck by the rotating scanner and exposure to RF radiation hazard.
2.On the Installation Setup menu, select “8. Tune/Video Adjustment” and press the [ACQ/ENTER] key.
3.The unit automatically adjusts tuning and video, displaying the following message.
[ Tune/Video Auto Adjustment ]
Now under correction.
Return to installation setup menu after the correction.
Figure 3-2 Tune/video auto
adjustment message
4.When adjustment is completed, the mes- sage disappears.
3.3 Entering Antenna Height
The STC curve changes with respect to an- tenna height above the waterline. Enter an- tenna height above the waterline to optimize the STC curve.
1.Select “12. Ant Height” from the Installa- tion Setup menu and press the [ACQ/EN- TER] key.
2.Operate the omnipad to select antenna height above the waterline; Low (3 m or less), Mid (3 to 6 m) or High (6 to 10 m).
3.Press the [ACQ/ENTER] key.
