Eagle Electronics FISHMARK 320 - Manual (Page 63)

59
Grayline is adjustable. Experiment with your unit to find the Grayline
setting that's best for you.
To adjust the Grayline level:
1. From the Sonar Page, press
MENU |
↓ to
G
RAYLINE
| 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 .
Muddy
bottom
Fish near
structure
Hard
bottom
Hard
structure
Grayline
Grayline
Fig. 2A
Fig. 2B
Fig. 1A Fig. 1B