Operation Manual

Simrad SH80
118
850-164385 / Rev.C
PP Filter
The PP Filter can be accessed from the Horizontal and
Vertical menus.
The PP Filter (Ping-to Ping filter) reduces unwanted noise and
echoes from the screen. The filter has three different strengths. As
the ping-to-pingfilter comparesthe echoes from the last 2 (Weak),
4(Medium)or8(Strong) pings, it will take this selected amounts
of pings to make a stable presentation when changing most of the
sonarfunctions. The filteringroutine takesthe vessel’smovements
into consideration when comparing the echoes from ping to ping.