Garmin 190-00864-01 Quick Start Manual page 7

Range
To set the range of the depth scale
on the right side of the screen:
From the Full screen, press right or left
ROCKER
on the
Auto Range
Select
automatically, depending on the depth at
your current location.
Or, from the Home screen, select
Screen > MENU
Range. Use the
depth scale.
Gain
To adjust the sensitivity (gain) of
the sonar receiver:
1. From the Home screen, select
Screen > MENU
2. Select Manual Gain
you select Manual
or left on the ROCKER
the gain, then press SELECT. To see
more detail, increase the gain. If the
screen is cluttered, decrease the gain.
Fishfinder 300C Quick Start Manual
to set the depth scale.
to set the range
Full
> Range > Manual
ROCKER to set the
Full
> Gain.
or Auto Gain. If
Gain, press right
to highlight
Beam
To select a narrow-beam or
wide-beam sonar angle:
1. From the Home screen, select
Screen MENU
>
2. Select Wide or Narrow. Select
to view a larger area. Select
view more detail.
Zoom
To select the screen zoom:
1. From the Home screen, select
Screen > MENU
2. Select No Zoom, 2x, or 4x. Select
Bottom Lock
window to the bottom. Select
Zoom to switch to the Split Zoom
screen (page
Full
> Beam.
Wide
Narrow
Full
> Zoom.
to lock the zoom
Split
9).
to