EM302

  • 2022 Sikuliaq EM302 / EM710 Calibration Report

    Cruise ID: SKQ202203S Multibeam System: EM302/EM710 Dates: April 11, 2021 • The University of Alaska’s UNOLS vessel R/V Sikuliaq (SKQ) is equipped with Kongsberg Maritime EM302 and EM710 multibeam echosounders and a Seapath 320 positioning / attitude system. • During the 2021-22 winter maintenance period in Portland, OR, the Seapath MRU was calibrated by Kongsberg […]

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  • 2022 Nautilus QAT Report

    Cruise ID: NA136 Multibeam System: EM302 Dates: March 1-10, 2022 The 2022 EM302 Quality Assessment Tests (QATs) were conducted during the NA136 engineering shakedown cruise around the islands of Oʻahu, Molokaʻi, and Lānaʻifrom March 1stto the 10th. This year’s QAT was very important for two primary reasons:It was the first time to conduct a full […]

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  • 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. This years QAT was very important as in 2020 during NA118/NA119 it was discovered that there was a significant increase […]

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  • 2021 Sikuliaq QAT EM302 and EM710

    Cruise ID: SKQ202102S Multibeam System: EM302/EM710 Dates: April 11, 2021 Attached Documents Report: Related Information

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  • 2021 Sikualiaq EM302 and EM710 Calibration

    Cruise ID: SKQ202102S Multibeam System: EM302/EM710 Dates: April 11, 2021 • The University of Alaska’s UNOLS vessel R/V Sikuliaq (SKQ) is equipped with Kongsberg Maritime EM302 and EM710 multibeam echosounders and a Seapath 320 positioning / attitude system. • The Multibeam Advisory Committee (MAC) was asked to assist with Quality Assurance Testing (QAT) of the […]

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  • 2018 Thomas G. Thompson EM302 SAT Report

    Cruise ID: TN347 Multibeam System: EM302 Dates: January 8-12, 2018 Conducted January 8-12, 2018 to test the new Kongsberg EM302 (upgraded from EM300) and Applanix POS MV V5. Attached Documents Report: Related Information Cruise Data at R2R

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  • 2019 Okeanos Explorer EM302 Shakedown

    Cruise ID: EX1902 Multibeam System: EM302 Dates: May, 2019 The primary shakedown activities included: 2019-05-12: depart Pascagoula, MS EM302 and POS MV geometry / config. review EM302 dockside BISTs (incl. TX channels) Geometric calibration (‘patch test’) Backscatter calibration (for Kongsberg processing) Roll verification Swath extinction data collection during transits EM302 RX noise vs. speed testing […]

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  • 2019 E/V Nautilus Quality Assessment Report

    Cruise ID: NA105 Multibeam System: EM302 Dates: January 18-21, 2021 Attached Documents Report: Related Information

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  • 2020 Sikuliaq EM302/EM710 Calibration Report

    Cruise ID: SKQ202008S Multibeam System: EM302/EM710 Dates: June 24, 2020 The University of Alaska’s UNOLS vessel R/V Sikuliaq(SKQ) is equipped with Kongsberg Maritime EM302 and EM710 multibeam echosounders and a Seapath320 positioning / attitude system The Multibeam Advisory Committee (MAC) was asked to assist with Quality Assurance Testing (QAT) of the ship’s EM302 and EM710 […]

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  • 2019 Sikuliaq Calibration Report

    Cruise ID: SKQ201907T Multibeam System: EM302/EM122 Dates: January 18-21, 2021 The University of Alaska’s UNOLS vessel R/V Sikuliaq(SKQ) is equipped with Kongsberg Maritime EM302 and EM710 multibeam echosounders and a Seapath320 positioning / attitude system Attached Documents Report: Related Information

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  • 2018 Okeanos Explorer EM302 SAT

    Cruise ID: EX1810 Multibeam System: EM302 Dates: October, 2018 The primary RX array SAT activities included: 2018-10-02: depart Quonset, RI EM302 TX and RX array survey review EM302 and POS MV geometry / config. review EM302 start-up (by Kongsberg) and BISTs Geometric calibration and verification (‘patch test’) Deep roll verification Deep accuracy testing Swath extinction […]

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  • 2016 Bat Galim 2016 System Review

    Vessel: R/V Bat Galim Multibeam System: EM302/EM2040 Dates: January 31 – February 4, 2016  From January 31st to February 4th, 2016 a Shipboard Acceptance Testing (SAT) was conducted on the R/V Bat Galim, owned by the Ministry of National Infrastructures, Energy and Water Resource of Israel and operated by Israel Oceanographic and Limnological Research, on the newly installed […]

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  • 2016 Sikuliaq Calibration Report

    Cruise ID: SKQ201602S Multibeam System: EM302/EM710 Dates: March 7-12, 2016 The R/V Sikuliaq is equipped with Kongsberg Maritime (KM) EM302 (30 kHz) and EM710 (70-100 kHz) multibeam echosounders and a Seapath 320 positioning and attitude system with C-NAV DGNSS auxiliary input. These systems were reviewed by the Multibeam Advisory Committee (MAC) and personnel from NOAA, […]

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  • 2018 Nautilus Quality Assessment Report

    Cruise ID: NA093 Multibeam System: EM302 Dates: May 30 – June 3, 2018 Heading into the 2018 operating season, the EM302 and associated sensors aboard the E/V Nautilusare working well compared to the 2017 Quality Assurance Test (QAT) and earlier shipboard assessments. The EM302 was calibrated for residual angular offsets using the Seapath 330+ as […]

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  • 2016 Bat Galim Acoustic Test Report

    Cruise ID: AT43-02 Multibeam System: EM124/Seapath 380 Dates: January 01, 2022 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. Attached Documents Report: Related Information Cruise […]

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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. An at-sea investigation was accomplished during ship operations in deep water out of San Juan, Puerto Rico on September 12-18, 2014. During […]

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  • 2010 Thomas G. Thompson Sea Acceptance Report

    Cruise ID: TN225 Multibeam System: EM302 Dates: October 15-20, 2010 A sea acceptance trial (SAT) was conducted to evaluate the performance of the EM302 multibeam echosounder (MBES) onboard the R/V Thomas G. Thompson in October 2010 off the coast of Washington state. Excellent sea conditions permitted continuous acquisition with all planned survey sites being successfully […]

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  • 2017 Nautilus Spring Quality Assessment Report

    Cruise ID: NA079 Multibeam System: EM302 Dates: May 1-6, 2017 The E/V Nautilus undertook a multibeam echosounder quality assurance test from May 1 to May 5, 2017 during an engineering shakedown leg (NA079) in order to perform an assessment of the vessel’s Kongsberg EM302 multibeam echosounder. Data were collected near the Southern Channel Islands (Figure […]

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  • 2015 Nautilus Spring Quality Assessment Report

    Cruise ID: NA055 Multibeam System: EM302 Dates: March 30 – April 5, 2015 Heading into the 2015 operating season, the EM302 and associated sensors aboard E/V Nautilus are working well compared to previous evaluations and to other EM302 systems examined recently. The patch test showed no pitch or yaw bias and only a very slight […]

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  • 2014 Nautilus Spring Quality Assessment Report

    Cruise ID: NA040 Multibeam System: EM302 Dates: May 4-9, 2014 As it stands now, the EM302 and associated sensors are working well as compared to other EM302s evaluated recently. The patch test revealed very slight residual angular offsets, indicating a successful reinstallation of the MRU and no apparent change to any other component of the […]

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  • 2014 Falkor Spring Quality Assessment Report

    Vessel: R/V Falkor Multibeam System: EM302/EM710 Dates: February 4-7, 2014 The transducer impedances are similar to baseline measurements in 2012 and with those taken in 2013. Transducer conditions, based on these tests, are acceptable and there is no sign of degradation of the transducer arrays. Noise levels for the EM710 remain unchanged and very low. […]

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  • 2014 Falkor Fall Quality Assessment Report

    Vessel: R/V Falkor Multibeam System: EM710/EM302 Dates: September 22-24, 2014 The R/V Atlantis replaced its EM122 multibeam echosounder with an EM124 upgrade during the 2020-21 mThe EM302 and EM710 multibeams were successfully calibrated and verified for use with both the loaner Seapath MRU and the new POS MV. Angular offsets were small except for the […]

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  • 2013 Falkor Multibeam Echosounder System Review

    Vessel: R/V Falkor Multibeam System: EM710/EM302 Dates: April 2, 2012 The transducer impedances are similar to baseline measurements with exception of the EM710 transducer impedances. This latter potential issue is being examined with the manufacturer but we do not feel, after consultation with the manufacturer, that there is any cause for concern. Noise levels have […]

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  • 2012 Falkor Multibeam Echosounder System Review

    Vessel: R/V Falkor Multibeam System: EM302/EM710 Dates: May 2012 RV Falkor is equipped with Kongsberg Maritime (KM) EM302 and EM710 multibeam echosounders (MBES). Both systems underwent Sea Acceptance Trials (SATs) in May 2012 in Sognefjord, Norway. The bathymetric and topographic constraints imposed by the fjord limited the ability to fully test the EM302. Additional system […]

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