Kongsberg EA 600 Instruction Manual page 45

Transducer installation
Figure 5 External mounting on wood or polyester hulls
These transducers are mainly used on smaller vessels. A
location approximately 0.5 m aside from the keel may be
adequate for the passage of water between the keel and the
transducer. The figures illustrate external mounting of
transducers on steel hulls and on wood or polyester hulls
respectively.
→
Refer to figures 4 and 5.
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857-164688 / E