Step 7: Calibrate the microphone input
Open the Setup Form and click on the Transmit Tab. Keep this form open while returning
to the front panel. Select ALC on the TX Meter in the upper right corner. Make sure the
compressor (COMP) is turned off, and click the MOX button to begin transmitting. Speak
in a normal voice and adjust the Mic Preamp (see figure below) until the voice peaks are
right at 0dB on the multimeter (figure below).
PowerSDR Setup Form - Audio Tab
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