Specifications.pdf

Technical Specifications for Multibeam Echosounder

Minimum requirements for the purchase of the multibeam system are as follows:

1) At a minimum, 160 degrees of swath width. This requirement is needed to optimize data collection efforts in rivers and streams.

2) Selectable frequency range from 200 to 400 kHz.

3) Minimum of 512 beams.

4) Data acquisition rates above 50 Hz.

5) High accuracy MRU (Motion Reference Unit). The selected MRU is consistent between all quotes provided.

Pitch and roll ‐ accuracy within 0.02 degrees.

Heading ‐ 0.03 degree accuracy.

6) Portability; the system needs to be easily transferable between vessels.

7) Splash proof housings.

8) Industry standard software for data post processing.

9) Sound velocity probe.

10) All mounting brackets required must be provided; turnkey system.

11) Complete and in‐depth training of the system.

12) The system must be able to acquire RTK GPS data from in‐house survey system or base station.

13) Must provide backscatter information (snippets).