Installation manual

Simrad SH80
PP Filter
The PP Filter parameter dialogue opens when you click the PP
Filter
button on the Horizontal and Vertical menus.
This filter reduces unwanted noise and echoes from the screen.
The filter has three different strengths. As t he ping-to-ping filter
compares the echoes from the last two (weak), four (medium) or
eight (strong) pings, it will take this selected amounts of pings
to make a stable presentation when changing most of the sonar
functions. The filtering routine takes the vessel’s movements into
consideration when comparing the echoes from ping to ping.
The following options are available in the
PP Filter parameter
dialogue:
•
Off: Click to switch the filter off.
•
Weak: Click to switch on the filter to compare the echoes
from the latest two pings.
•
Medium: Click to switch on the filter to compare the echoes
from the latest four pings.
•
Strong: Click to switch on the filter to compare the echoes
from the latest eight pings.
•
Close: C lick to close the parameter dialogue.
•
Help: Click to access the on-line help.
Related topics
Horizontal menu on page 79
Vertical menu on page 81
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