Rohde & Schwarz UPV OPT B1 B3

Rohde & Schwarz UPV Audio Analyzer With OPT B1 B3

Device is tested and works properly. A one-year warranty is expressed on the function. Residual THD maximum -130dB ( THD +N -115dB )at 1Khz /2.5V At optimum setting . Single channel operation even -133dB THD. But the device must have been running for half an hour. To get the most out of it you have to juggle with the level of the generator , the input sensitivity of the analyzer ( fixed setting , not automatic ) and the amount of harmonics you want to measure . It is always ( with all analyzers ) a trade-off : lowest distortion , versus lowest noise. Display is mint condition.