Navman FISH 4500/4600 - Manual (Page 18)

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Comparison of the same fish scenario displayed at different frequencies:
50 kHz display
Dual screen
200 kHz display
200/50 Khz display Mixed display
Note the wider
bottom trace
Note the
smaller,
defined fish
arches and
more bottom
detail.
FISH 4500/4600 Installation and Operation Manual 18 NAVMAN