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R81 Receiver User manual Receiver Specifications Channels: 8 Frequency range: 2400-2483.5Mhz Power input range: 4.5-8.4V Signal format: D8 Output format: SBUS Support return: support return RSSI Control distance: more than 1km Antenna length: Approximaltly 6cm Size: 17x11mm Weight: 2grams S.BUS DC4.5-8.4V...
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