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JFC-180BB
1.4 Change of TX Power
The strength of TX Power (transmission
output) can be changed.
When water depth is 50 m or less, the gain
of images are sometimes too high. In such
cases, the gain can be set appropriately by
reducing the [TX Power]. When own
equipment is affecting the echo sounders of
other boats, the interference noise to the
other boats can be reduced by weakening
the TX Power.
1.4.1 TX Power (HF)
Echo Adjust - TX Power (HF)
When TX Power (HF) has been changed,
the TX Power of the transducer connected to
the HF (high frequency) side can be
adjusted.
1. Press
.
2. Select [Echo Adjust] - [TX Power (HF)].
3. Press [ ] of
The setup box of [TX Power (HF)] will be
displayed.
Caution: Never activate transmission while transducer is out of water.
7ZPNA4619A
.
Chapter 1 Echo Adjust/Display Setup
4. Press [▲] and [▼] and select TX Power.
The smaller the value is, the weaker the
TX Power becomes.
5. Press
to close the menu.
Caution: At [Auto], transmission
output will be adjusted
depending of depth range. The
output is reduced for shallow
water, and is increased for deep
water.
1.4.2 TX Power (LF)
Echo Adjust - TX Power (LF)
When TX Power (LF) is changed, the TX
Power of transducer connected to the LF
(low frequency) side can be adjusted.
1. Press
.
2. Select [Echo Adjust] - [TX Power (LF)].
3. Press [ ] of
The setup box of [TX Power (LF)] will be
displayed.
4. Press [▲] and [▼], and select TX Power.
The smaller the value is, the weaker the
TX Power becomes.
5. Press
to close the menu.
Caution: At [Auto], transmission
output will be adjusted
depending of depth range. The
output is reduced for shallow
water, and is increased for
deep water.
.
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付録
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