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  • frsky x4r-sb xsr d4r-ii
    April 8, 2016

    FrSky X4R-SB and XSR, SBUS and Telemetry

    FrSky X4R-SB and XSR Setup The FrSky X4R-SB has been out for a while but the XSR was just release. What makes these two receivers so great! Let’s take a look. The XSR-SB and XSR both use a newer technology...

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