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.
Summary of Contents for FISHMARK 640C
Page 6: ...iv Notes ...
Page 42: ...36 Notes ...
Page 48: ...42 Sonar page in Split Zoom Sonar Chart display mode Sonar page in Digital Data display mode ...
Page 58: ...52 Notes ...
Page 98: ...92 Notes ...
Page 104: ...98 Notes ...
