The ESPC has been designed for use in electrical and electronic industries to cover all stages of development and production, it offers a compact and economical solution in particular for development-accompanying EMI diagnostic measurements, pre- and post-qualification tests and production tests. The Rhode-Schwarz ESPC features a large frequency range from 150 kHz to 1000 MHz with options for frequency extension to 9 kHz and 2500 MHz and also features parallel detectors for average, peak and quasi-peak reading, and fast synthesizer: frequency resolution 10 Hz and 100 Hz