Understanding The Split Frequency Screen; Understanding The Temp Log - Garmin GPSMAP 4210 Owner's Manual

Understanding the Split Frequency Screen

Use the Split Frequency screen (dual frequency transducer only) to view both the 50kHz and
200kHz frequencies on the same screen. A 200kHz frequency graph appears on the left; a 50kHz
frequency graph appears on the right.
From the Home screen, select
Depth, temperature,
and water speed
GPS speed and
GPS heading
Transducer
frequencies

Understanding the Temp Log

If you are using a temperature-capable transducer, the Temp Log screen keeps a graphic log of
temperature readings over time. The current temperature and depth are shown in the top-left corner.
From the Home screen, select
Temperature
and depth
Time
elapsed
The temperature appears along the right side and the time elapsed appears along the bottom. The
graph scrolls to the left as information is received.
Press MENU to access scale settings. Select
set the temperature range scale.
GPSMAP 4000 Series Owner's Manual
Sonar > Split Frequency.
Sonar > Temp Log.
Duration to set the time elapsed scale. Select
u S
SInG onar
Range
Temperature
Range
Scale to
4