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1. OPERATION
1-21
1
1.9.2
How to change the range for external echo sounders where
"External Fish Finder Window" is set to "On" at installation
1. Place the cursor inside the external fish finder screen, then right-click to show the
[External Fish Finder] menu.
2. The [Sounder] item is already selected. At the right-side of the menu window, click
[Range].
3. Select the drop-down options button to show the preset range settings.
4. Select the appropriate range.
5. Click [Apply] to save the current changes and change or adjust other settings.
Click [OK] to save the current changes and close the menu window.
Click [Cancel] to abort all changes and close the menu window.
1.10
How to Reject Interference
Interference from other acoustic equipment operating nearby or other electronic
equipment on your boat may show itself on the display as shown in the figure below.
When this occurs use the interference rejector.
Note:
A high setting for interference rejection can also remove weak echoes (small
targets).
1.10.1
Interference rejection for the FCV-38
1. Click the [Sounder] icon (
) from the InstantAccess bar™ to show the [Sounder]
menu.
2. Click the [Interference] icon (
). [INTERFERENCE] appears in the miscella-
neous section of the header and is highlighted in a green color.
3. Scroll to adjust the level of interference rejection, referring to the table below.
Setting
Description
[Off]
Disable interference rejection.
[NL1]
Lowest level of rejection.
[NL2]
Medium level of rejection.
[NL3]
Highest level of rejection.
[Auto]
Automatically adjust the level of rejection to suit current conditions.
Interference from
other sounder
(blue dots)
Electrical interference
[INTERFERENCE] indication
RANGE
40
SB
RANGE
40
INTERFERENCE
Auto