Acoustic recorders + hydrophone array

Tender description

3 x multichannel subsea acoustic recorders with at least 4 hydrophone channel inputs plus 9 x compatible hydrophones, associated mounts, cables and battery packs. Lot 1: For full details, see please the ITT PDF document available for download. In brief, we wish to appoint an equipment provider supply the following: - 3 x multichannel subsea acoustic recorders with at least 4 hydrophone channel inputs (e.g ORCA). - 9 x hydrophones compatible with the recorders (frequency range required 0 Hz – 150 kHz, sampling rate ~312.5 or 384 kHz alternatives considered, sensitivity est. -165 dB or -178 dB alternatives considered, working depths up to 70 metres). - Additional storage capacity as required (suitable for up to 3 – 4 months recording, dependant on rate, preference around 4 TB per recorder) - 9 x hydrophone cables to connect to the acoustic recorder (at least 2 metres each) - Battery packs (suitable for up to 3 – 4 months recording, dependant on sampling rate), batteries will need to be able to be easily replaced or recharged e.g. D cell batteries. Only one deployment is planned but the equipment will ideally be easy to use again in the future. - Hydrophone mounting brackets for the selected hydrophones. Drawing/dimensions of mounting brackets to be provided as early as possible to facilitate design and fabrication of supporting frames (Figure 1) - Delivery to EMEC offices by February 2025: The Charles Clouston Building, ORIC, Back Road, Stromness, Orkney, KW16 3AW.. For full information please see ITT in the PDF download area.