74
2. The Sensitivity Control Bar appears. Press
↓
to decrease sensitivity;
press
↑
to increase sensitivity. When it's set at the desired level, press
EXIT
. When you reach the maximum or minimum limit a tone sounds.
To turn off HyperScroll:
1. From the Sonar Page, press
MENU
|
↓
to
P
ING
S
PEED
|
ENT
.
2. The Ping Speed Control Bar appears. Press
↓
to decrease ping speed
to 50 percent. When it's set at the desired level, press
EXIT
.
When you boost ping speed and switch into HyperScroll, the width of
the FasTrack bar graph display doubles in width at the right side of the
screen. This allows you to better see the virtually instantaneous sonar
returns, just as you would on a flasher sonar unit. For more informa-
tion on FasTrack, see its entry in this section.
Pop-up Help
Help is available for virtually all of the menu labels on this unit. By
highlighting a menu item and leaving it highlighted for a few seconds, a
"pop-up" message appears that describes the function of the menu item.
This feature is on by default.
To set up Popup Help:
Press
MENU
|
MENU
|
↓
to
P
OPUP
H
ELP
. With the
option highlighted, press
ENT
to check it (turn on) and uncheck it (turn
off). After the option is set, press
EXIT
to return to the page display.
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 ...