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The RTW SW20006 Premium PPM Plus Vectorscope Software Module expands the Basic Stereo PPM (standard software) with additional scales (Zoom, SMPTE, NHK, ARD+9, et al.), additional display modes (segment, classic) and PPM/VU moving coil instruments with different scales and functions. It also provides a 2-channel Audio Vectorscope and a separate phase meter. With software module SW20001 installed, the Multichannel PPM is also extended with these functions and enhanced with the Multi-Correlator (up to 10 phase meters). The Gain Reduction is added with Multi-Channel mode.