Simrad SP90

Operator manualTable of contents1 SYSTEM DESCRIPTION .................................. 11.1 Introduction .............................................. 11.2 System overview .......................................... 2Main units .............................................. 2Wheelhouse units ........................................ 2Sonar room units ......................................... 41.3 Options ................................................. 5General ................................................ 5Stabilization system ...................................... 5Triple- or multiple-frequency ............................... 5Scientific output ......................................... 61.4 Functional description ...................................... 7Introduction ............................................. 7Functional principles ...................................... 7Reception ............................................... 9Transmission ............................................ 101.5 Peripheral equipment ...................................... 112 DISPLAY MODES ......................................... 122.1 Introduction .............................................. 122.2 Bow Up ................................................. 132.3 North Up ................................................ 142.4 True Motion ............................................. 152.5 1805 / Audio ............................................. 162.6 2705 / Vertical ............................................ 172.7 Bow Up / Vertical ......................................... 182.8 True Motion / Vertical ...................................... 192.9 Dual 1 .................................................. 202.10 Dual 2 .................................................. 213 SONAR OPERATING PANEL ............................. 223.1 Introduction .............................................. 223.2 The fields ............................................... 22Main switch ............................................. 23Symbol ................................................ 24Mode .................................................. 26Gain ................................................... 27850-164511 / BIII