Furuno TZT2BB Installation Manual page 54

3. EQUIPMENT SETUP
Menu item
[Zero Line Range]
[Transducer Draft]
[Salt Water]
[Fish Finder
Source]
[Transducer Setup] Setup Transducer and Motion Sensor. See "Transducer Setup
[Transmission For-
mat]
[Transmission
Power Mode]
[External KP]
[Bottom Level HF]
[Bottom Level LF]
[Gain Offset HF]
[Gain Offset LF]
[Auto Gain Offset
HF]
[Auto Gain Offset
LF]
3-16
You can set the zero line removal range by turning on [Ze-
ro Line Rejection]. If the tail of the zero line is long, set a
large value. If the zero line still does not disappear, reduce
the transmission power. The default setting is 2.0
Note: Shown with connection of DFF3, DFF3-UHD.
Set the distance between the transducer and the draft line
to show the distance from the sea surface.
Select [ON] if you use this equipment in salt water.
Select the connected fish finder.To use the built-in fish
finder, select [TZT2BB], which is the default nickname.
The nickname can be changed in [INITIAL SET-
UP][SENSOR LIST].
menu" on page 3-17.
Select whether to transmit high and low frequencies simul-
taneously or with a time delay. Normally, use [Parallel],
which transmits the frequencies simultaneously. If you en-
counter interference near the bottom, select [Sequentia-
lA],[SequentialB] in order to suppress the interference.
Note: Shown with connection of DFF3-UHD, DI-FFAMP.
*: When DFF3-UHD (program version: 0252480-02.04 or
later) is connected, select [SequentialA] or [Sequen-
tialB]. When self interference occurs, select [Sequen-
tialB] and set the interference supression.
Set the TX power level. See the operator's manual for de-
tails.
Select on to synchronize with external sounder's keying
pulse.
Note: Shown when the fish finder source is DFF1/BBDS1,
DFF3, DFF1-UHD, DFF3-UHD,
The default bottom level setting (0) determines that two
strong echoes received in sequence are bottom echoes. If
the depth indication is not stable in the default setting,
adjust the bottom level here. If vertical lines appear from
the bottom echo in the bottom lock display, lower the
bottom level to erase the vertical lines.
If you can not identify the fish near the bottom from the
bottom echo, increase the bottom level.
If the gain setting is wrong, or there is a difference in the
gain between the low and high frequencies, you can
balance the gain for the two frequencies here.
If the auto gain offset is wrong, or there is a difference in
the gain between the low and high frequencies, set an
offset here to balance auto gain for the two frequencies.
Description
Options
(setting range)
DFF3: 1.4 to 2.5
DFF3-UHD: 1.4
to 3.8
0.0m to 99.9m
[OFF], [ON]
[TZT2BB],
[DFF1/BBDS1],
[DFF3],
[DFF1-UHD],
[DFF3-UHD]
[Parallel], [Se-
quentialA], [Se-
quentialB]*
Internal fish find-
er: [Min], [Max]
DFF1-UHD: [Off],
[Min], [Auto]
DFF3-UHD: 0 to
10
[OFF], [ON]
-40 to +40
-40 to +40
-50 to +50
-50 to +50
-5 to +5
-5 to +5