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Garmin Chartplotters - GPS Antennas
If the Garmin GPS Antennas 19 HVS or GPS 19x HVS antenna is being used between chartplotters that are connected together through the network, the chartplotters will be able to share one antenna. There are situations or preferences where multiple antennas are desired for redundancy. In this case, it would be recommended to wire both antennas to the chartplotter the exact same way.