Hollyland Solidcom M1 User Manual page 19

Operation Instructions
6. Select 2 Wire to perform 2-wire audio settings.
6.1 Connect the base station to the 2-wire device and set the corresponding cable
compensation and terminal resistance on the base station. Power on the 2-wire
device and turn off or disconnect its microphone to make sure that there is no
other audio transmission on the 2-wire link. Otherwise, the accuracy of auto-null
settings may be affected. After you select Auto Null and press the confirmation
button, auto-null settings for the 2-wire device will be performed automatically
on the base station.
6.2 Select Cable Compensation to check the 2-wire cable length and select the
corresponding compensation option according to the cable length.
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