Warbling on CW with UNO 4

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  • #1073
    wa2bvr
    Participant

    I am using an RSP1A with windows 10 and with the new version of UNO I am hearing warbling on CW tones and sideband signals.
    Anyone else having these experiences?

    #1076
    Andy2
    Participant

    Assuming you have just the CW or the USB or LSB button pressed, this sounds odd. You haven’t got AFC activated or synchronous AM on have you?
    The other thing is the ‘DC spike’. Look at the two frequency displays (LO and VFO) and check they are not the same. Receiving on the same frequency as the LO will cause all manner of funny effects, including fluttering and distortion.

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