Doc. P/N: WSP-009-005
Version: V1.5
Issue Date: October 2013
www.wassp.com
Page 51 of 73
Installation Manual
Figure 46. Side Lobe Levels
Full Side Lobe Suppression
Too Much Minimisation
No Minimisation
Light Minimisation
First set the Minimisation to 0. Then move it up to 1000, 2000,3000,4000 to get a sense for how
the ring shown at the first echo return becomes less and less noticeable. Set the Minimisation
at the lowest value at which the ring is not visible. See the Full Side Lobe Suppression image of
“Figure 46. Side Lobe Levels” below.
If this value required is greater than 5000 then it is likely that something is wrong. Check that the
power level is not too high and that you have followed the configuration above and Automatic
Power by Signal is set. Otherwise, re-check the individual receiver channels for anomalies and
check that all receiver cables from the transducer are connected to the correct sockets.
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