A preferred method for evaluating the signal channels of the network includes connecting a reference unit to the reference junction and successively positioning each device probing end that corresponds to a signal channel of {HEAD ~ interest} on {TAIL ~ the inner probing area} 
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A preferred method for evaluating the signal channels of the network includes connecting a reference unit to the reference junction and successively positioning each device probing end that corresponds to a signal channel of { HEAD ~ interest } on { TAIL ~ the inner probing area }
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