A-D-4 LISN with PMM 9010A-D.8 Marker Selecting this function a Marker is immediately enabled, and it appears on thescreen as a small black pointing down arrow corresponding to the highestreading; simultaneously a small window shows up in the bottom left corner ofthe screen, indicating the actual frequency and level read by the marker.The Marker Off exits from the marker function.A-D.9 LISNs withPMM Emission SuiteIt is also possible, in a similar way, to run the performance test in the PC,using the PMM Emission Suite.Entering the sweep mode and clicking EXECUTE the PC software scans theselected frequency band.If a PMM LISN is to be checked it is also possible to automatically select thelines and show on the same graph all the responses (not forgetting tomanually change BNC cable connection at LISN device’s Line before startingthe next sweep).To do this please refer to the PEMS user’s manual and select properAncillary.Frequency band Some LISNs have a frequency band filter which can be introduced whenrequired.PMM L2-16B for example is equipped with a switchable 150 kHz High Passfilter.The frequency response of such a kind of filter is also verifiable applying thepresent procedure.In this case the effects of the typical insertion loss of the circuit is summed tothe attenuation of the filter itself.Example of the insertionloss of a PMM L2-16BLISN with the 150 kHzHigh Pass filter activated.
