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Calibrations of Wide-Bandwidth Transceivers (WBT Mini) with Dualfrequency Transducers (ES38-18/200-18C) for Saildrone Surveys of the California Current Ecosystem During Summer 2018
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2019
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Series: NOAA-TM-NMFS-SWFSC-608
[PDF-1.29 MB]
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Description:The Summer 2018 Survey of the California Current Ecosystem (CCES), conducted by the Southwest Fisheries Science Center (SWFSC), was augmented by five Saildrones, each outfitted with a miniature wide-bandwidth transceiver (Simrad WBT Mini) configured with a dualfrequency transducer (Simrad ES38-18/200-18C). The Saildrones were assessed for their potential to enhance ship-based surveys and research. To optimize the accuracy and precision of the Saildrone-based data collections, each of the five WBT Mini and transducer pairs were calibrated. The 38-kHz three-sector split-beam channel and the 200-kHz single-beam channel were calibrated in both narrowband (CW) and wideband (FM) modes. This report describes the system characterization, calibration methods and results, and issues encountered. This report 3 also includes recommendations for software and hardware development, and refinements to calibration procedures.
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Rights Information:Public Domain
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Compliance:Submitted
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