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1. OPERATIONAL OVERVIEW
1-11
1.8 Mix Display
The mix display compares echo intensity between low and high frequencies, and displays
echoes from tiny fish in discriminative colors. This is done by utilizing the fact that tiny fish
return a stronger echo against a high frequency rather than a low frequency. The equipment
accomplishes this as follows:
• If a high frequency echo is stronger than the corresponding echo on the low frequency,
the high frequency echo is displayed.
• If the low frequency echo is stronger than or equal to the high frequency echo, it is less
likely to be a tiny fish and therefore is displayed in blue.
In other words, the echoes displayed in orange thru light-blue may be considered to be tiny
fish such as whitebait. When the mix display is active the indication MX appears at the top
of the display.
HI
MX
GAIN (HI)
GAIN (LO)
Mix
display
High-frequency
display
How the mix display works