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Installation Manual
Indicators
The DR75 has two indicators. One is a four digit liquid crystal display which displays input heading received from the transmitting device e.g. Gyro. The second is a horizontal LED bar graph display that is used either as a rate of turn indictor or as a steering indicator to show how far of a set course the vessel is.
Modes
The repeater’s LED bar graph display has three modes of operation. Modes are selected by depressing both the set switch and the Dim bar digit simultaneously and is cycled until you release both switches when the desired mode of operation is indicated on the LCD display (0, 1 and 2).
The first two modes (0 and 1) are used to select the bargraph display to act as a rate of turn indicator with a course and fine setting. This is particularly useful when docking manoeuvres are taking place.
The third mode of operation selects the bargraph display to act as a set steering display. The set switch is depressed when the desired heading to be steered to is reached. When the correct course is being steered all the indicators are unlit. With each degree steered
Flashing LCD display
If for any reason the heading display starts to flash this indicates that the data signal which is being sent by the transmitting device is either not present or not correct. This must be investigated further.
If the repeater is presented with a correct NMEA 0183 sentence but not being true heading (HDT), the display will still flash. If a magnetic heading is presented (HDM), the repeater will display the heading, but will still flash and respond slowly. The LED bar graph will not respond.
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