Measuring Audio Delay Through A Repeater Or DAS

When managing multicast systems and the overlap areas between in-building DAS systems and macro system transmitters, it is important to know the audio delay in order to achieve better signal quality. The key to audio delay measurement is in creating an audio burst that both triggers the analyzer and passes through the transmitter system to be viewed on the zero span spectrum trace. This application note discusses how the Anritsu S412E LMR Master can be used to measure the audio delay through a repeater or distributed antenna system (DAS). Download the full paper for a sample measurement test setup and configuration diagrams.