Stonex S850
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GNSS Receiver – User Manual 14
3.5.1.1 UHF Radio
The S850
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radio module frequency range is between 410MHz and 470MHz band, 8 channels with pre-set
frequencies are available for quick configurations, and the frequency values can be edited and saved.
The channel detection function allows one to check if the channel frequencies in the area are already used for
transmission. In the example below it’s possible to see a transmission on frequency 440.125 MHz, while the
other frequencies are unused.
To receive the RTK corrections from the base, select the same frequency, radio protocol, spacing, and FEC. Be
sure to connect a UHF antenna to adapt to the frequency of the transmission. For hopping frequencies is
necessary to match the channel instead of the frequency.