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At left, Sonar Page menu with Grayline command selected.
At right, the Grayline control bar.
To adjust the Grayline level:
1. From the Sonar Page, press
MENU|↓ to GRAYLINE|ENT.
2. The Grayline Control Bar appears. Press ↓ to decrease Grayline;
press ↑ to increase Grayline.
3. When it's set at the desired level, press
EXIT.
HyperScroll
See the entry on Ping Speed, which controls the HyperScroll feature.
Noise Rejection
See the entry on Advanced Signal Processing in this section.
Overlay Data
To change the digital data shown on top of the sonar page:
1. Press
MENU|↓ to OVERLAY DATA|ENT.
2. Press ↓ or ↑ to select Data Type|
ENT.
Overlay Data command on the Sonar Menu, at left. Overlay Data
Shown selection menu, right. In this example, we scrolled down the
data list to highlight "Ground Speed."