[. . . ] Software release note Simrad SX90 SW 1. 6. 5 / 1. 3. 6 Introduction This document describes the software and other changes introduced with the following new software versions: · ProcessorUnit:SW1. 6. 5 · BeamformerUnit:SW1. 3. 6 TheProcessorUnitsoftwareisthe SX90programthatcontrolsthemenu system, operationalmodes, features andpresentations. [. . . ] How to connect an audio system totheSX90sonarisexplainedinthe (Turn the page for more information) www. simrad. com TECHNOLOGY FOR SUSTAINABLE FISHERIES How do I perform the update?Endusersarenotpermittedto performthissoftwareupdate. Tocarry outtheupgradeprocedure, youmust contactyourlocaldealerforadvice. About the new audio output Theaudiooutputisprovidedby theBeamformerUnit. Youwillneed toobtainapoweredspeakersystem andconnectthistotheaudiooutput ontherearsideofthecomputer. Theaudiosignalisinterpreted from the echoes detected under the audio line, and only from the horizontaltransmissions. Thesound isdemodulatedto800Hz, andboth anexpanderandacompressoris implementedtoenhancethesound quality. The volume must be adjusted on thespeakersystem. Ifyouwishto mutetheaudiooutput, youcanpress the MutebuttonontheOperating Panel. Formoreinformationaboutaudio setupandspeakeroptions, refertothe document Simrad SX90 Audio setup procedure[316262]. Thisdocument can be downloaded from our website www. simrad. com. About the improved noise filter functionality The Noise Filter button on the Horizontalmenuwillnowprovide additionalfunctionality. A"post integrator" has been added, this means thatthenoisefilteringnowtakes placebothoneachindividualreceiver channel (as before) and now also after thebeamforming. [. . . ] · Strong:Usethissettingonlyif youhaveanoiseproblem. 316866 / Rev. E / January 2009 Simrad Kongsberg Maritime AS Strandpromenaden 50 P. O. Box 111 N-3191 Horten, Norway Telephone: +47 33 03 40 00 Telefax: +47 33 04 29 87 www. simrad. com simrad. sales@simrad. com [. . . ]