All-in-one oscilloscope series features multiple built-in instruments

Saelig has introduced the GW Instek MDO-2000E Series oscilloscopes that combine several test instruments in one unit. An actual spectrum analyzer is included in the design, not just an FFT calculation to display the frequency domain. The series includes two instrument combinations: MDO-2000EG and MDO-2000EX. MDO-2000EG models have a built-in true spectrum analyzer and a dual channel 25MHz arbitrary waveform generator, while the MDO-2000EX models feature a built-in a true spectrum analyzer, an arbitrary waveform generator, a 5,000 count DMM, and a 5V/1A power supply. The first of its kind, MDO-2000EX is the only oscilloscope to provide a space-saving combination of spectrum analyzer, DMM and power supply, making it ideal for educational or space-restricted use. The MDO-2000E Series is available in three bandwidths: 70, 100 and 200MHz and in 2 or 4 channel models. Offering an advantage over conventional spectrum analyzers, the spectrum function of series can test signals that are below 9kHz, such as audio and vibration signals. The series can also test signals that have a DC component without damaging the instrument. It offers the same capabilities as real-time spectrum analyzers, but faster than frequency sweeping. This is because the series utilizes advanced digital circuitry and software to render the frequency display. Ordinary spectrum analyzers process narrow frequency bandwidths which are frequency swept over time. Thousands of frequency sweeps are collected to form a spectrum. The FFT settings of ordinary digital oscilloscopes are dependent on the horizontal scale or sample rate setting, which is totally different from the frequency range setting of the series.