Simrad SP90

Sonar Operating PanelTrainThe audio channel is displayed as a continuous white line. It canbe trained either manually or automatically. The bearing angle isdisplayed in the upper right-hand corner of the display, indicatedrelative to the bow.(CD5354)ManualAutoSearchTRAINManualIn the Manual modethe train left (arrow)or train right (arrow)buttons are used todirect the audio lineto the desiredbearing.Auto searchIn the Auto Search mode the sonar will automatically searchwithin pre-set sector limits with the selected audio line designatingthe centre of the search. The search sector is displayed on thebearing card with two white angular symbols.• The search sector is adjusted by pressing and holding the AutoSearch button and simultaneously pressing the train left(arrow) or train right (arrow) buttons .• The Automatic Search function is overridden when either thetrain left (arrow) or train right (arrow) buttons are pressed andwill continue once released. The present bearing at the momenteither button is released will become the centre of the search.Position trackThe Position Track function is only available when both a coursegyro and a speed log are interfaced with the sonar system.To track a fixed position, place the cursor over the desired locationand press the Position Track button. A geographically fixed circlewill appear on the display and its position automatically tracked bythe system.When the Auto Tilt function is activated in the Position Trackmode the tilt angle’s centre is automatically adjusted with regardto the distance to the tracked position.850-164511 / B31