It seems at least possible that the polyphonic audio bleat is being
produced by feedback somehow occurring between LIN IN and LIN OUT on
the KIO3. Two possibilities - either the sound card has failed in
this peculiar way, or there is some setting, either in my WIN 10
computer's sound settings
I am trying to diagnose a problem with my K3/KIO3 which surfaced during
the ARRL VHF contest. Previously, I had used this setup for hundreds of
QSOs on HF.
I am using an external Startec USB soundcard. The KIO3 IN jack is
cabled to the speaker output of the soundcard. The KIO3 OUT jack is
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