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    2020-06-07 11:02:55

    I was surprised by the accuracy of this instrument, for every range selected. Tested with reference generator HP8662A, reading goes down 3dB at about 6MHz. The output is really 1Vrms at full scale, and selecting the 1mV range, it operates as a 60dB amplifier (1000x voltage gain!), with low noise. Output is in phase with input up to about 100KHz (at this frequency, output phase begin to rotate), then output level begin to decrease 3dB at about 200kHz. Cheap material, components and construction, the

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