Furuno TZT14 - How to Measure Range, Depth or Time to an Object

7. FISH FINDER
7-10
the interference rejector to reduce the interference. Turn off the interference rejector
when there is no interference, so that you do not erase weak echoes.
1. Select [Menu] on the menu icon bar to open the main menu.
2. Select [Sounder].
3. Select [Interference Rejection].
4. Select [Low], [Medium], [High] or [Auto]. [High] is the greatest interference rejec-
tion. [Auto] automatically selects suitable interference setting.
5. Select [Close] to exit the menu.
To deactivate the interference rejection, select [Off] at step 5.
7.7 How to Measure Range, Depth or Time to an Ob-
ject
You can measure the depth to an object with the VRM. Also, you can measure the
range and time from the right edge to a location. For example, you can measure how
many minutes ago an echo appeared.
To measure the range, the depth or the time to an object, select an object to display
the VRM. Read the range, the depth and the time in the box.
When you want to see the past echoes which are off the screen, drag the screen to
right. To show the current display, select [Cancel Hist.] at the top right-hand corner of
the screen.
Interference from
other sounder
Interference from
electrical equipment
VRM
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ADAR
R
R
ADAR
R
AR
A
DA
D
AD
RA
A
R
RADAR
ADAR
R
ADAR
R
AR
A
DA
D
AD
RA
A
R
DATA 2
2
A
A
TA
T
AT
AT
DA
D
D
D
D
D
DATA
2
DATA 2
2
A
A
TA
T
AT
AT
DA
D
D
D
D
D
D
DATA 1
DATA 1
DATA 1
DATA 1
DATA 1
A
D
D
D
D
D
D
D
DATA
1
DATA 1
DATA 1
A
D
D
D
D
D
New Point
Auto Ra
Go To
◄ Frequency
◄ Mode
◄ Adjust
Range
Depth
Time
299 yd
292 ft
1'46s