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Do NOT leave the U.FL connector unoccupied when powering on the device. This could Without a load to match the output impedance, any power transmitted will reflect back as a standing wave and likely destroy the amplifier in the SX1281 RF IC.
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Do NOT leave the U.FL connector unoccupied when powering on the device. This could Without a load to match the output impedance, any power transmitted will reflect back as a standing wave and likely destroy the amplifier in the SX1281 RF IC.
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