Adjusting The Gain - Furuno CH-300 Operator's Manual

1.9

Adjusting the Gain

The GAIN control adjusts the sensitivity of the receiver. Normally, the control is adjusted so
that the bottom echo is displayed in reddish-brown mixed with red. Initially set the gain
between "4" and "6" and then fine tune according to fishing ground, etc.
Single-frequency or combination display
When using both high and low frequency in the horizontal/vertical scan display, refer to the
procedure on the next page.
1. Push the GAIN control.
HIGH FREQ GAIN:
2. Turn the GAIN control to adjust the gain (range: 0-10).
△
△
Location of gain setting indication
3. Press the MENU key to close the gain setting window. Note that it is not necessary to
press the MENU key – the window will automatically if no operation is detected for four
seconds.
Note 1: Step 1 is not necessary if the menu item GAIN SETTING PROTECT (SYSTEM
SETTING 2 menu) is set for OFF.
Note 2: You can switch control between the main and sub windows in the horizontal/vertical
scan display with the MAIN/SUB key.
Too Low
How to adjust the gain
5.0 (0-10)
Gain setting
GAIN 5.3
Too High
Proper
1. OPERATIONAL OVERVIEW
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