Well after connecting the control wires and then checking everything again to make sure all was what it was supposed to be I connected the U3S to a dummy load and hit the switch.
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Everything powered up¡U3S went through it¡¯s calibration and then the TX started.
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On transmit the LCD went from the normal display you would get for 40m wspr ?to gibberish J
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The U3S worked perfectly all afternoon on wspr tx¡¯ing 4 bands using the version 3.12a firmware.
