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echo 200, echo 300c, echo 500c, and echo 550c Owner’s Manual 15
Using the echo
Before you can set the noise rejection, you must open the Full Screen page
(page 4), the Split Zoom page (page 5), or the Split Frequency page (page 5).
You can minimize the appearance of weak sonar returns by increasing noise
rejection.
When you set noise rejection on one page, that setting is applied to the other
pages.
NOTE: To set noise rejection on the Split Frequency page, you must set the
77 kHz and the 200 kHz screens separately.
1. Select MENU > Setup > Sonar Setup > Noise Reject.
2. Select the level of noise rejection.
Before you can hide surface noise, you must open the Full Screen page
(page 4), the Split Zoom page (page 5), or the Split Frequency page (page 5).
You can set whether the sonar returns near the surface of the water appear.
Hide surface noise to help reduce clutter.
When you show or hide the surface noise on one page, that setting is applied
to the other pages.
Select MENU > Setup > Sonar Setup > Surface Noise > Hide.
You can adjust which numbers (water temperature, battery voltage, water
speed, and water speed odometer) are displayed on the Full Screen page, the
Split Zoom page, and the Split Frequency page. You can also adjust the size
of those numbers.
NOTE: The device must be connected to a temperature transducer to show
the water temperature. The device must be connected to a speed-wheel
transducer to show the water speed.
Before you can show the water temperature, you must open the Full Screen
page (page 4), the Split Zoom page (page 5), or the Split Frequency page
(page 5).
1. Select MENU > Setup > Sonar Numbers > Water Temperature.
2. Select Auto.
Before you can show the water speed, you must open the Full Screen page
(page 4), the Split Zoom page (page 5), or the Split Frequency page (page 5).
1. Select MENU > Setup > Sonar Numbers > Water Speed.
2. Select Auto.