beautypg.com

Furuno GP-3500F User Manual

Page 178

background image

11. VIDEO SOUNDER OPERATION

11-6

11.2.7

A-scope display (Single display only)

The A-scope display, available in all modes, shows echoes at each transmission
with amplitudes and tones proportional to their intensities, on the right 1/3 of the
screen. It is useful for estimating fish species and seabed composition.

Strong echo
(Bottom)

Normal
display

A-SCOPE DISPLAY

Fish school

Weak echo
(small fish school
or noise)

AUTO C

53.6

m

17.6

5.6

°

C

10.0 kt

1'50"

50k

0

20

40

60

80

A-scope display