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2. MENU OPERATION
2-10
2.5 E/S Menu
The E/S menu sets echo sounder-related options.
Menu for E/S function setting.
[-/+]: Change set, [EXIT]: Exit
<High Frequency>
FREQ CHOICE : 75 kHz
<Low Frequency>
FREQ CHOICE : 50 kHz
PWR REDUCTION : OFF
BOTTOM SEARCH : AUTO
BOTTOM LEVEL : +0(-40 +0)
AUTO MODE : OFF
DISP ALM TX/RX E/S SYSTEM
E/S menu
FREQ CHOICE
You can change the transmitting frequencies for the following transducers. This
function is useful when there is interference from other vessel, or when targeting
certain fish species.
50kHz/75kHz transducer
Using the following transducers with 75 kHz provides high-resolution pictures:
• 50B-6
• 50/200-1T (50kHz)
• 50/200-1ST(50 kHz)
• 50B-9
• 50B-12
Note 1: When using above transducers on 75 kHz the transmission line (zero
line) may be longer than normal.
Note 2: 50 kHz and 75 kHz pictures are displayed on the dual frequency display
with connection of one of the above-mentioned transducers. However,
the actual picture is shown only for the port where the transducer is
connected.