When to use 200 kHz
The 200 kHz frequency is best for seeing deep
bottoms, showing detail and redu cing noise.
When to use 83 kHz
The 83 kHz frequency is has a wid er b eam –good
for locating features that can be exam ined in
detail at 200kHz.
Auto frequency
This shows 200kHz detail on screen , but uses
83kHz beam for locating fish furt her from boat.
Wide angle,
less detailed
83 kHz cone
Narrow angle,
more detailed
200 kHz cone
4-2 Single and Dual frequency fi shfinding
1 minute ago
30 seconds ago
Now
Comparison of the same fish scena rio displayed at dif ferent frequen cies:
FISH 4432/4433 Installation and Operation Manual19 NAVMAN