Intermec TRACKER PRO 128 User Manual download pdf (Page 14)

always determines the depth of the

bottom, even if it is not visible

on-screen.

Using manual Depth Range control,

you can view sonar information from

the area near the surface in great

detail.

To return to automatic Depth Range

control, press the MENU button until

the Depth Range menu appears on-

screen and use the UP ARROW to

select AUTO.

Zoom. Zoom is similar to Depth Range

because it controls the range of information

displayed on screen. Zoom, however,

allows selection of ranges beneath the surface

so any area of water between the surface and

the bottom can be enlarged to provide more

detailed information. By using the full display to

show a small area of coverage, the effective dis-

play resolution is increased, and the unit’s ability

to separate close targets is enhanced.

There are four Zoom ranges available: 7

¹⁄₂'

(2m), 15' (5m), 30' (10m), and 60' (20m).

These ranges are not directly user controlled

but are instead dependent on the current

depth range. In shallow water, when the

15' (5m) or 30' (10m) range is in use, the

Zoom range is 7

¹⁄₂' (2m). If the 60' (20m) or

120' (40m) range is in use, the Zoom range

is 15' (5m), if a 180'-480' (60-150m) depth

range is in use, the Zoom range is 30'

(10m), and if the 600' (185m) range is in

use, the Zoom range is 60' (20m).

USING THE TRACKER UNIT

MENU FUNCTIONS

Depth Range

Lower Zoom Limit

Upper Zoom Limit

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 31 32

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Intermec TRACKER PRO 128 User Manual Page 14