?This product uses the local oscillator signal and the external test signal to obtain the difference frequency signal, and calculates the amplitude of the external test signal through the detector.
?Using a high-precision VCO source, the heterodyne signal frequency can be measured very accurately. The scanning spectrum analyzer can accurately measure the frequency of the signal to be measured in the frequency range of 35M-4400M, and estimate the amplitude of the signal to be tested by detecting the amplitude of the difference frequency.
?Because the scanning range is very large (35m-4400m), the hardware circuits in different frequency bands are the same, so the measured amplitude will be wrong. In order to solve this problem, two functions of gain magnification and offsetY1Y2 are added.
?Since the scanning range is very large (35M-4400M), because there is no special detection circuit for the external measurement signal due to cost and other factors, the measurement amplitude may have errors.
?The product increases the magnification and displacement parameters, and the user can adjust the display waveform by himself. The amplitude display is adjusted and calibrated.