[Elecraft] Residual tone

[Paul Ormandy]

    Hi all,

Have a strange issue using Logger32 with the K3 which has only recently 
    become apparent...
    After keying the rig with the CW machine, there is a residual tone 
    (about 800Hz) that I can hear thru the phones, even with the AF turned 
    right down.

The tone level is controlled by the Monitor function.

    Turning the K3 off and on again cures the problem until I key with the 
    rig once again...
    This doesn't always happen and does not happen at all with N1MM.
    Be grateful for any suggestions.
    Cheers,
    Paul