Simrad SP90

Simrad SP90PP FilterThe PP Filter can be accessed from the the following menus:Horizontal, Vertical and Second Ping.The PP Filter (Ping-to Ping filter) reduces unwanted noise andechoes from the screen.The filter has three different strengths. As the ping-to-ping filtercompares the echoes from the last 2 (Weak), 4 (Medium) or8(Strong) pings, it will take this selected amounts of pings to makea stable presentation when changing most of the sonar functions.The filtering routine takes the vessel’s movements intoconsideration when comparing the echoes from ping to ping.114 850-164511 / B