Simrad GB40 User Manual

You can adjust the gain settings for the 50 kHz and 200 kHz
frequencies independently of each other.
¾ To change the gain setting:
• Display the Echosounder pane and the main menu. If you can't
see the
Gain and Filters button, select Return.
• Select
Gain and Filters. Select either:
◦ 200 kHz Gain if you want to adjust the gain setting for
the 200 kHz frequency or for a Mixed frequency OR
◦ 50 kHz Gain if you want to adjust the gain setting for the
50 kHz frequency.
• A slider box appears. Drag the line to change the setting.
• Select
OK.
Note: If you're using Fishing or Cruising mode and adjust the
gain yourself, the
Echosounder automatically changes to
Manual mode.
7.9 Echosounder: Threshold setting
The threshold line is shown on the advanced A-scope pane as a
thin white vertical line. You may find it useful to view this pane
while you adjust the threshold.
You can adjust the threshold for the 50 kHz and 200 kHz
independently of each other. The default for both is 0.
¾ To change the threshold:
• Display the Echosounder pane and the main menu. If you can't
see the
Gain and Filters button, select Return.
• Select
Gain and Filters. Select either:
◦ 200 kHz Threshold if you want to adjust the gain
threshold for the 200 kHz frequency or for a Mixed
frequency OR
◦ 50 kHz Threshold if you want to adjust the gain
threshold for the 50 kHz frequency
• A slider box appears. Drag the line to change the setting.
• Select
OK.
Note: If you're using Fishing or Cruising mode and adjust the
gain yourself, the
Echosounder automatically changes to
Manual mode.
96 | Echosounder

Simrad GB40 Specifications

General

Brand	Simrad
Model	GB40
Category	Car Navigation system
Language	English