Eagle Electronics fishmark 320 User Manual

Page of 92
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Adjust Zone Alarm selection box, with Upper  selected.
3. To set the upper boundary for the Zone Alarm, use 
← or→ to select
U
PPER
, then press 
↑ or ↓ to move the top of the bar to the desired depth.
4. To set the lower boundary for the Zone Alarm, use 
← or→ to select
L
OWER
, then press 
↑ or ↓ to move the bottom of the bar to the desired
depth.
5. Press 
EXIT
|
← to 
Z
ONE 
A
LARM 
E
NABLED
|
ENT
|
EXIT
. Now, any echo —
fish, bottom, structure — within the zone alarm's depth range will trig-
ger the zone alarm.
6. To turn off the alarm, press 
A
LARM
|
↓ to 
Z
ONE 
A
LARM 
E
N-
ABLED
|
ENT
|
EXIT
.
To switch to a different depth setting, open the Sonar Alarms menu and
repeat the instructions in steps 3  and 4 above.
Fish Alarm
Use the fish alarm for a distinctive audible alarm when fish or other
suspended objects are detected by the Fish I.D.
 feature (Fish I.D.
must be turned on for the Fish Alarm to work). A different tone sounds
for each fish symbol size shown on the display.
To turn the fish alarm on:
1. Press 
A
LARM
.
2. Press 
↓ to 
F
ISH 
A
LARM
|
ENT
|
EXIT
.
3. To turn off the alarm, press 
A
LARM
|
↓ to  
F
ISH 
A
LARM
|
ENT
|
EXIT
.
Brightness
See the entry in this section for Screen Contrast and Brightness.