When to use 200 khz, When to use 83 khz, Auto frequency – Navman 4433 User Manual
Page 17: 2 single and dual frequency fishfinding
When to use 200 kHz
The 200 kHz frequency is best for seeing deep
bottoms, showing detail and reducing noise.
When to use 83 kHz
The 83 kHz frequency is has a wider beam –good
for locating features that can be examined in
detail at 200kHz.
Auto frequency
This shows 200kHz detail on screen, but uses
83kHz beam for locating fish further from boat.
Wide angle,
less detailed
83 kHz cone
Narrow angle,
more detailed
200 kHz cone
4-2 Single and Dual frequency fishfinding
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30 seconds ago
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Comparison of the same fish scenario displayed at different frequencies:
FISH 4432/4433 Installation and Operation Manual
19
NAVMAN
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