Sensitivity; Sounder Page Options - Garmin GPSMAP 235 Sounder Owner's Manual

Sounder Page Options

The Sounder Page options menu lets you customize the sounder' s features to
suit your needs.
To display the Sounder Page options menu:
1. From the Sounder Page, press
The following options are available:
• Sensitivity Adjust?: Sensitivity controls the sounder's ability to show echoes without
introducing interference. With Garmin's technology called Depth Controlled Gain,
you will rarely have to manually adjust the sensitivity. Under actual operating condi-
tions, DCG automatically adjusts the sensitivity for the best setting. Under unusual
conditions (such as shooting the transducer through fiberglass) you can adjust the
sensitivity described in the following steps:
To change the sensitivity setting:
1. From the Sounder Page press
T
Adjust?' and press
2. The sensitivity value display field in the upper-right corner of the screen will be
R
highlighted. Use the keypad to select the desired percentage and press
O
.
O
to access the options list. Highlight 'Sensitivity
.
A
T
.
A. Use the sounder options page to change the
B. For greater control, the sensitivity amount can
SECTION
SOUNDER PAGE
3

Sensitivity

B
Sounder Page display to fit your needs.
be adjusted from the default setting of 50% to a
greater or lesser value (0%-100%).
29