2016 Bat Galim Acoustic Test Report Cruise ID: AT43-02 Multibeam System: EM124/Seapath 380 Dates: July 18-21, 2021 The R/V Atlantis replaced its EM122 multibeam echosounder with an EM124 upgrade during the 2020-21 midlife refit period; a Seapath 380 position/attitude system was installed to replace the PHINS as the primary feed to the multibeam mapping system. Continue Reading →
2021 Nautilus QAT Report Cruise ID: NA126 Multibeam System: EM302 Dates: July 3-10, 2021 The 2021 EM302 Quality Assessment Tests (QATs) were conducted primarily during NA126, the engineering shakedown cruise, with some additional ship self-noise data collected during NA127. Continue Reading →
2015 Kilo Moana Acoustic Test Report Vessel: R/V Kilo Moana Multibeam System: EM122 Dates: August, 2015 The EM 122 receive array had a bad preamplifier board that was causing the entire array to have higher noise levels and to exhibit non-uniform distribution of noise characteristics. Continue Reading →
2014 Sikuliaq Acoustic Test Report Vessel: R/V Sikuliaq Multibeam System: EM302/EM710 Dates: September 12-18, 2014 Gates Acoustic Services was tasked by University of Alaska, Fairbanks, to investigate and quantify acoustic issues associated with operation of the R/V SIKULIAQ. Continue Reading →
2012 Kilo Moana Acoustic Test Report Vessel: R/V Kilo Moana Multibeam System: EM122 Dates: 2012 KILO MOANA’s acoustic signature was higher than previous acoustical data due to electronic noise interference. Continue Reading →
2012 Melville Acoustic Test Report Vessel: R/V Melville Multibeam System: EM122 Dates: January 2012 R/V MELVILLE acoustic signature was successfully measured during this acoustic test. Continue Reading →
2011 Atlantis Acoustic Test Report Vessel ID: R/V Atlantis Multibeam System: EM122 Dates: June 2011 The R/V Atlantis replaced its EM122 multibeam echosounder with an EM124 upgrade during the 2020-21 The acoustic signature of R/V ATLANTIS was successfully measured during this acoustic test. Continue Reading →
2012 Langseth Quality Assurance Report Cruise ID: MGL1214 Multibeam System: EM122 Dates: August 01, 2012 Patch Test ResultsLatency Test– No change neededRoll Test– Applied additional offset of -0.065– Resulting Roll Offset -0.575Pitch Test– No change neededHeading Test– Applied offset of -0.2– Resulting Heading&Offset:&L0.2& Attached Documents Report: QAT_MGL1214-PatchTest_0812Download Pre-Cruise Analysis: analysis_langsethDownload Related Information Cruise Data at R2R Continue Reading →
2010 Kilo Moana Acoustic Test Report Vessel: R/V Kilo Moana Multibeam System: EM122Dates: September 2010 KILO MOANA’s acoustic signature was comparable to previous acoustical data with one noted exception. Continue Reading →