Chapter: 1. Introduction
1. Introduction
System Summary
GDS101 is a navigation echo sounder with a large high resolution graphic LCD. The echo sounder graphics
are continuously shown on the LCD along with complete navigational details.
The colour bar:
Day vision
Night vision
Weak signal
Strong signal
Light purple
Green
Light green
Red
Dark red
Black
Weak signal
Strong signal
Aqua
Green
Yellow
Purple
Red
Black
It is possible to connect an external printer to the operator unit. The sounder contains a 24 hour history
memory that can be printed out. Depth, time and all available navigation data are stored continuously so that
the last 24 hours of information is always available. All this information may also be printed on the external
printer. All IMO requirements are met or exceeded. Comprehensive interfaces are available including IEC
61162-1:2007(E) (NMEA 0183) inputs and outputs.
Transducers
GDS101 is prepared for connection to transducers of the following frequencies: 38, 50 and 200 kHz. One or
more of the transducers may be connected at the same time, and the desired transducer may be selected from
the operator panel.
Operator Panel and Data Entry
The operator unit contains a graphic LCD and a keyboard with xed keys, soft keys and a rotating encoder.
The function of each soft key button depends on the active screen, and the buttons are labeled on the lower
rim of the LCD. The display is backlit, and contrast and backlight intensity may be adjusted by the user.
The echogram is displayed continuously on the LCD and stored in the 24 hour history memory. An optional
external printer is used if hard-copy documentation is required. The operator unit is normally ush mounted.
Power supply options are 115/230 V AC or 24 V DC. The power consumption is app. 70 Watt at 115/230 V
AC or 50 Watt at 24 V DC.
Several screens may be selected to enter various settings and parameters. Each screen has a selection of soft
key buttons. Screens 1 through 3 are primary operation screens with appropriate operator controls. Screens
4 through 10 are parameter setup and system supervision screens. The various screens will be described in
detail later.
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