Ò³ãæ 45, 3 indirect echoes, Figure 4-2 side-lobe echoes – Onwa Marine Electronics KR-12X8 User Manual
Page 45: Figure 4-3 indirect echoes
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4.3 Indirect Echoes
Figure 4-2 Side-lobe echoes
Main-lobe
Antenna
Side-lobe
Sprious
target
True echo
Figure 4-3 Indirect echoes
Direct
Bridge
Indirect
Own
Target
path
path
Indirect
ship
echo
Heading
True
Indirect
echo
echo
Iine
echo
Indirect
True
Heading
echo
Iine
Antenna
Obstruction
Direct
Target
path
Indirect
path
(mast,funnel
etc.).
38
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