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.

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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.

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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.

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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.

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Optimizing Sonar Performance by Managing Acoustics

Presentation given at the 2014 INMARTECH Meeting in Corvallis, Oregon in November, 2014.

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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.

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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.

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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.

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2014 INMARTECH Optimizing Sonar Performance by Managing Acoustics

Optimizing Sonar Performance by Managing Acoustics Presentation given at the 2014 INMARTECH Meeting in Corvallis, Oregon in November, 2014.

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