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1. OPERATIONAL OVERVIEW
1-7
1.6 Tuning
The radar receiver can be tuned automatically or manually, and the default tuning method is auto-
matic. If you require manual tuning, do the following:
1. Use the RANGE key to choose the 48-mile range.
2. Press the MENU key to display the main menu.
3. Use the trackball to choose Tuning and press the ENTER key.
4. Use the trackball to choose Tuning Mode and press the ENTER key.
Tuning options
5. Choose Manual and press the ENTER key.
6. Choose Manual Tuning and push the ENTER key. The window shown below appears.
7. Roll the trackball upward or downward to adjust the tuning, watching the tuning bar at the top
right corner. The best tuning point is where the tuning bar swings maximum. The vertical bar
on the tuning bar shows tuning control position; not the tuning condition.
Tuning indicator
8. Push the ENTER key.
9. Press the MENU key to close the menu.
Brill/Color
Echo
Mark
Target Trails
Custom 1
Display
Custom 2
Custom 3
GPS Buoy
Target
ARP
AIS
GPS
System
Tuning
Tuning Mode
Manual Tuning
:Auto
Menu
Tuning
[ENTER]: Enter [CANCEL/HL OFF]: Back
[MENU]: Exit
:2048
Auto
Manual
2048
(0-4095)
Tuning method (Manual)
Tuning ba
r
TUNE MAN
GAIN AUTO
SEA AUTO
RAIN AUTO