Eagle FISHMARK 640C - To Change the Frequency Setting to 50 Khz; To Change the Frequency Setting to 200 Khz; Hyperscroll; Noise Rejection

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To change the frequency setting to 50 kHz:
1. From the Sonar Page, press
MENU|↓ to SONAR FEATURES|ENT.
2. Press ↓ then → to Transducer Freq.|
50 KHZ|ENT.
3. Press
EXIT|EXIT to clear the menu.
To change the frequency setting to 200 kHz:
1. From the Sonar Page, press
MENU|↓ to SONAR FEATURES|ENT.
2. Press ↓ then → to Transducer Freq.|
200 KHZ|ENT.
3. Press
EXIT|EXIT to clear the menu.
HyperScroll
See the entry on Ping Speed, which controls the HyperScroll feature.
Noise Rejection
See the entry on Advanced Signal Processing in this section.
Overlay Data
To change the digital data shown "floating" on top of the Sonar Page:
To select data for display:
1. Press MENU|↓ to OVERLAY DATA|ENT.
2. Press ↓ or ↑ to select Data Type|
ENT.