
6-24 E-Series Networked Display Reference Manual
• GAIN MODE - This should be set high enough to see fish and bottom detail but
without too much background noise. Generally, a high gain is used in deep and/or
clear water; a low gain in shallow and/or murky water.
• COLOR GAIN - This sets the lower limit for the strongest echo color. All echoes with
a signal strength above this value are displayed in the strongest color. Those with
a weaker value are divided equally between the remaining colors. Setting a low
value produces wide band for the weakest color, but a small signal band for the
other colors; setting a high value gives a wide band for the strongest color, but a
small signal band for the other colors.
• TVG - A low TVG value has little effect on gain in shallow water; a high value
decreases the gain in shallow water so that only the strongest echoes are
displayed.
4. Press OK or CANCEL twice to return to the default display.
Adjusting the power setting
The Power control provides adjustment of the transducer signal. When AUTO is selected
(default), the DSM automatically determines the required power setting based on the
current depth, speed, and (bottom) signal strength.
If, however, you wish to manually adjust the power to suit current conditions, you can
adjust the power level between 0 and 100%, in 10% increments. Lower power levels are
normally used in depth ranges less than 8 ft. (2.4 m) and higher power levels are typically
selected for depths greater than 12 ft. (3.7 m).
To adjust the Power Setting:
1. Press FISHFINDER SETTINGS.
2. Press POWER.
3. Toggle POWER to either AUTO or MAN. If MAN mode is set the power adjustment
slider is displayed. Use the rotary control to adjust the power value. There is a short
delay whilst the new setting takes effect.
4. Press OK or CANCEL to return to the default display.
81244_1.book Page 24 Wednesday, December 1, 2004 11:41 AM
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