Rohde & Schwarz has introduced the R&S RT-ZPR20, extremely low-noise power rail probe with a bandwidth of 2 GHz. Its 1:1 attenuation also ensures very good sensitivity. The large offset range of ± 60 V permits analysis of the smallest disturbance signals during power integrity measurements, even on DC power supplies with a high voltage level. The probe also features an integrated high-precision DC voltmeter. The quality of the power supply is a key factor in the functionality and performance of sensitive electronic circuits.