Furuno FCR-2107 series, Operator'S Manual

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2. Radar Operation
2-3
[Echo]
Go Back
2nd Echo Rej
PM
SART
Tune Initialize
2.2 Tuning the Receiver
2.2.1 Choosing the tuning method
The tuning method can be selected with the TUNE box at the top of the screen.
1. Use the trackball to select the TUNE box (Tune MAN or Tune AUTO) at the top of the screen.
For manual tuning, put arrow inside box to adjust tuning.
Tune AUTO
Tuning method (AUTO or MAN)
TUNE box
2. Push the left button or spin the scrollwheel to display TUNE AUTO or TUNE MAN as appropriate.
3. Push the scrollwheel.
2.2.2 Initializing tuning
Automatic tuning is initialized during the installation. However, if you feel that automatic tuning is not working
properly try re-initializing it as follows:
1. Right-click the MENU box.
2. Spin the scrollwheel to select Echo then push the scrollwheel.
3. Spin the scrollwheel to select Tune Initialize.
4. Push the scrollwheel, or push the ENTER MARK key on the control unit
w/keyboard. Initialization begins.
2.2.3 Automatic tuning
Select automatic tuning following section 2.2.1 Choosing the tuning method. The TUNE box shows TUNE AUTO.
2.2.4 Manual tuning
1. Use the trackball to select the RANGE box at top left corner then push the left or right button as appropriate to
select the 48-mile range. Push the left button to lower the range; the right button to raise the range.
2. Select manual tuning following the procedure in section 2.2.1 Choosing the tuning method.
3. Use the trackball to place the arrow in the tuning bar area in the TUNE box.
4. Spin the scrollwheel to adjust tuning. The best tuning point is where the bar swings maximum. The triangle
below the bar graph shows tuning control position; not the tuning condition.