The SC-500 system consists of three main components: a high-sensitivity GNSS Antenna, a Data Control Box (Junction Box), and a 5-inch Display Unit (MKD).2 It uses advanced satellite electronic navigation technology (supporting GPS and Beidou) to deliver heading data with an accuracy of 3$0.2^\circ \text{ rms}$.4 The display unit includes a built-in global chart and supports multiple specialized viewing modes, such as a traditional compass rose and rotation data





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