Simrad ER60, Operator'S Manual

Page: 78 / 182

Simrad ER60 Operator manual
70
850-164692 / Rev.B
Echogram: Pixels
This tab page is used to specify how sample data are converted
to pixel data.
Each ping consists a given number of data samples, where the
number of samples is set by the current depth range. This
number of samples does not necessarily match the number of
vertical pixels in the
Echogram view. The data samples must
therefore be compressed or expanded to fit the number of
available pixels.
In other echo sounders, this function is handled automatically
without allowing the user to control the process.
Compression
These options describe the situation when the number of
samples is higher than the number of pixels, and multiple
samples are compressed into one pixel.
Mean - The mean of the samples is used as pixel value.
Peak - The peak value of the samples is used as pixel value.