Reson SeaBat 7125 SV2, Operator'S Manual

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ACTIVE SONAR USAGE
SeaBat 7125 SV2 Operator‟s Manual
Page 115 July 25, 2011
Version 3
Air bubbles mask some or all of the view of the sonar where the affected area will
completely blank out. Common causes for bubble masking include:
The vessel props when thrusting into reverse and pours a stream of bubbles
over the sonar.
The sonar has not been deployed deeply enough and there is bubble wash
from the sea surface.
Bubble ingestion as the vessel pitches into the sea.
6.7.6 Environment
A high-reverb environment where echoes of the previous ping are contaminating the
current ping may prove to be difficult. For means of compensating for this, see
section
6.2.3 above .