Basic parameters of this Rohde & Schwarz FMU36 Baseband Analyzer (DC – 36 MHz) are frequency range 10 mHz – 1 MHz, possibility of two-channel measurement, choice between high or low impedance input, internal noise level 3 nV/√Hz, dynamic range 130 dB, suppression of disturbing harmonic components better than 50 dB, except for the third harmonic, where suppression is above 70 dB. The analyzer contains GPIB and LAN communication interfaces as well as an external monitor interface. The analyzer allows spectra processing using FFT; integrated antialiasing filter with optional memory extension for samples with the depth of at least 200 Ms is necessary.