Simrad TV80, Reference Manual

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Start Range function
The
Start Range
setting allows you to specify the start value for the depth or distance
presentation in the sensor’s history field. Use this setting together with
Range
to set up the
depth or distance scales in your current echogram view.
How to open
This function is opened from the
Active
menu.
Description
The
Start Range
setting defines from which depth the echogram shall start. In other words,
this is the depth of the "top" of the echogram. The start range you specify applies to the
currently selected echogram. (It is identified with a thick red border.)
Gain function
The purpose of the
Gain
function is to adjust the display gain in the TV80 presentations.
How to open
This function is opened from the
Active
menu.
Description
By default, the gain setting is only applied to the currently selected echogram (identified
with a thick border).
Horizontal Axis function
The echograms travels from right towards left across the TV80 presentation. On the
Horizontal Axis
function you can choose the horizontal scale of the PX TrawlEye echogram.
This controls the "speed" of the echogram.
How to open
This function is opened from the
Active
menu.
Description
The horizontal scale controls how "fast" the echograms move from right towards left across
the TV80 presentation. The setting(s) you choose will only be valid for the currently
"active" echogram. The "active" echogram view is identified with a thicker border.
Simrad TV80 Reference Manual