Eagle Electronics FISHMARK 640C - Manual (Page 75)

69
To change the frequency setting to 50 kHz:
1. From the Sonar Page, press
MENU |
↓ to
S
ONAR
F
EATURES
| ENT .
2. Press
↓
then
→ to Transducer Freq.|
50
K
H
Z
| 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
S ONAR F EATURES
| ENT .
2. Press
↓
then
→ to Transducer Freq.|
200
K
H
Z
| 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
O
VERLAY
D
ATA
| ENT .
2. Press
↓ or ↑ to select Data Type|
ENT.