Simrad PI44 C, Руководство оператора

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Operational procedures
93
850-165085 / Rev.B
How to zoom in on bottom echoes
The Bottom Lock functions allows you to zoom in on the
echoes closest to the bottom.
When this function is active, the echo sounder presentation is
split in two. The upper part is the ordinary presentation, while
the lower part shows the echoes just above the bottom. The
bottom appears to be flat, but this may not be the case, as the
zoomed area is related to the bottom.
Activate Bottom Lock
1 Make sure that your echo sounder presentation is in an
active window.
2 Press the B-LCK button.
If you were operating the echo sounder in Phased range mode
when you pressed the B-LCK button, the echo sounder will
automatically switch to Standard mode and use the applicable
depth range.
Change the range in the expansion window
1 Press the ADJ button to open the Echo presentation
setup .
2 Change the Expansion window value.
3 Press the ENT button to save the choice and exit.
De-activate Bottom Lock
1 Press the STND button to return to Standard mode, or
2 Press the SHIFT button to return to Phased range mode.
Related topics
→
Echo presentation setup, page 177