microHAM MK2R Manual page 43

FSK/DIGITAL (BBB) – The station microphone is disconnected and the computer generated audio is applied to
the radio's rear panel audio input. This setting is recommended for all digital mode operation regardless
of keying type (FSK or AFSK).
FSK/DIGITAL (CCC) – The computer generated audio is connected to connected to the radio front panel mic
jack and the sound card microphone input is muted. This setting is recommended ONLY for older radios
and the Elecraft K2 that do not have rear panel audio input for digital modes.
Router will show a black box around the selected mode/audio configuration.
MK2R must know which channel of the sound card to use for RADIO1 and
which for RADIO2. This is done with the Left / Right selector labeled Use
line out channel. When the Left channel is assigned to RADIO1, RADIO2 is
automatically assigned the Right channel and vice versa. Because there is
no standard, you can configure MK2R to match your software using this
selector.
NOTE: The Audio Switching is set independently for RADIO1 and
RADIO2. Be sure to configure both!
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