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To use NS-HP-GN2 as RTK rover, connect antenna, place antenna at location with clear open sky view,
apply base data to UART RX2 input and apply power, NMEA result will come out from UART TXD
output. The base data may come from a NS-HP-GN2 base sent over wireless radio, or a remote RTCM
3.x base station within 30Km range retrieved by NTRIP client over Internet and send over
Bluetooth-to-Serial or USB-to-Serial interface.