Raymarine GPM400 - Page 101

101 Chapter 8: The Fishfinder
8.7 Presentation toolbar
The PRESENTATION softkey gives you access to VRM features (for measuring depth and distance), frequency view selection and a scroll
control. These settings affect the monitor you are working on.
ADJUST P1
SINGLE
PRESET 2
DUAL
PRESET 3
SHALLOW
PRESET 4
DEEP
Gain
Power Auto/Man
PRESENTATION
VRM
View F1/F2/Both
Scroll pause/resume
Scroll pause/resume
Color gain auto/manual
Gain mode auto/manual (low, medium, high)
TVG auto/manual
Color threshold
VRM range
VRM on/off
VRM depth
View F1/F2/Both
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