Hi Zhenxing,
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thanks for the reply so maybe there is a direct solution. I found out I can use the I/Q stream for listening, but I would also like to transmit in CW appropriately, using the keyer attached to the QMX.
Maybe I have to fiddle with HDSDR to get a proper setup, as presently I do not hear the tx audio (sidetone) via HDSDR.
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73, Ralph, DL1HR
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