54
Sonar Menu (left) with Sonar Features selected. In the Sonar
Features menu (center) the SeaFinder's Noise Rejection feature is se-
lected with ASP in the default low setting. The Noise Rejection feature
(far right) is set the same in the FishMark unit.
To change the ASP level:
1. From the Sonar Page press
MENU
|
↓
to
S
ONAR
F
EATURES
|
ENT
.
2. Press
↓
to
N
OISE
R
EJECTION
|
ENT
.
3. Press
↓
or
↑
to select a setting then press
ENT
.
4. To return to the previous page press
EXIT
|
EXIT
.
Alarms
This unit has three different types of sonar alarms. The first is the Fish
Alarm. It sounds when the Fish I.D.
feature determines that an echo
is a fish.
Another alarm is the Zone Alarm, which consists of a bar on the side of
the screen. Any echo on the chart that appears inside this bar triggers
this alarm.
The last alarm is the Depth Alarm, which has both a Shallow and a
Deep setting. This is useful as an anchor watch, a shallow water alert
or for navigation.
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 ...