Garmin gpsmap 400 用户手册
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3
GPSMAP
®
400 Series Owner’s Manual
u
SInG
S
onar
Understanding the Split Freq Screen
Use the Split Freq screen (dual frequency transducer only) to view
both the 50kHz and 200kHz frequencies on the same screen. A
50kHz frequency graph appears on the left; a 200kHz frequency
graph appears on the right.
To open the Split Freq screen, from the Home screen, select
To open the Split Freq screen, from the Home screen, select
Sonar
>
Split Freq
.
Depth, temperature, and speed
Range
Frequencies
Understanding The Split Zoom Screen
Use the Split Zoom screen to view the full sonar data from the graph
and a zoomed in portion on the same screen.
From the Home screen, select
From the Home screen, select
Sonar
>
Split Zoom
.
Transducer frequency
or beam width
Depth, temperature,
and speed
Range
Zoom
window
Zoomed
depth scale
Zoom level