Wesmar SS395 Installation & Operation Manual page 8

Speed will change the scanning speed of the trans-
ducer. A speed of one will step the transducer in
1.8 degree steps, where a speed of four will step
in 7.2 degree steps. A speed of one is considered
regular scan with fine resolution where a speed of
four yields a faster scan with lower resolution.
ENHANCE
Enhance is one of three filters. Selections are
from OFF to 5. Enhance will help in target recog-
nition of individual targets such as tuna, salmon,
and sports fish. If bottom typing for shrimp, turn
enhance off.
FILTER
Filter is the second of three filters. Filter is used to
filter out unwanted returns and reduce clutter from
the screen. Filter should be turned off when scan-
ning for small targets. Use Filter when scanning
for schools of fish and bottom typing
LIMITER
The third of the three filters. The limiter can be ON
or OFF. When ON, interference from any other
sonar/sounder equipment on board will not mark
on the screen. This is accomplished by eliminating
all targets that are not present in two consecutive
transmits at the same range. The limiter is very
effective; however, when scanning for individual
targets it is recommend to turn the limiter OFF.
When the limiter is ON there will be a (?) after
ON to question the operator if this is the correct
setting.
THRESH
Or Threshold. Selections are from 1 to 4. In order
for a target to display on the screen, the echo, after
going through the receiver, must be strong enough
to reach the colors. The colors can be raised or
lowered. Lowering the threshold will display all
targets including weak ones without adjusting
gains. Raising the threshold will remove weak
targets leaving only strong targets on the display.
DELETE
Delete will remove targets colors weak to strong.
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