Equipped with the R&S®RTB-K15 and the R&S®RTM-K15 options, the R&S®RTB2000 and the R&S®RTM3000 offer a history function with a segmented memory of 160/400 Msample per channel. The R&S®RTA4000 oscilloscopes provide a segmented memory of 1000 Msample per channel as standard. This covers analog and digital channels and the memory can be divided into several steps. When the fast segmented mode is activated, the blind time is reduced down to 1.5 µs.