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.

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.

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.