CNR-INM PARTICIPATION IN ROUND-ROBIN CALIBRATION OF A WILDLIFE ACOUSTICS SM4M AUTONOMOUS ACOUSTIC RECORDER

This report describes the operations of a measurement campaign performed at INM Lake Nemi test site by INM personnel, with external participation of ISPRA personnel, within the EURAMET EMPIR 15RPT02 «UNAC-LOW» project activities. The campaign lasted from 28 January to 1 February 2019. Measurements were done on days 29, 30, and 31 January 2019. The objective was to participate in the round-robin calibration of a Wildlife Acoustics SM4M autonomous underwater acoustic recorder that was circulated among project partners. The calibration was done using the method of comparison with a calibrated reference hydrophone under free-field conditions.