Using Sonar; Understanding The Full Screen - Garmin GPSMAP 190-01230-10 Owner's Manual

Using Sonar

Using Sonar
When connected to a transducer, the following chartplotters can be
used as fishfinders:
GPSMAP 421s GPSMAP 451s
GPSMAP 521s GPSMAP 526s
GPSMAP 551s GPSMAP 556s

Understanding the Full Screen

Select the Full Screen option to view a full-screen graph of the
transducer's sonar readings.
From the Home screen, select
5
Sonar > Full Screen.
Depth
Temperature
Speed
Suspended
targets
Transducer
frequency
Full Screen
GPSMAP 400/500 Series Owner's Manual
Range