Installation manual

Simrad SP70
132
850-164186 / Rev.D
PP Filter
The PP Filter can be accessed from the Horizontal, Vertical,
Echo sounder and Trawl 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-ping filter compares the 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 sonar functions. The filtering routine takes
the vessel’s movements into consideration when comparing the
echoes from ping to ping.