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Oscilloscopes offer analysis of long signal sequences

12 Nov 2014

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Rohde & Schwarz has developed the maximum memory depth of RTM bench oscilloscope to 460Msample per channel with the RTM-K15 history and segmented memory option. Ranging from 10ksample to 20Msample, the segmented memory enables acquisition of up to 45,000 individual waveform segments. The RTM-K15 is beneficial when analysing protocol sequences and pulse packets that include long gaps.

The R&S RTM triggers on the relevant data and skips gaps so that they do not tie up valuable memory. The timestamp function indicates exactly when the waveforms were acquired, allowing users to acquire I2C data packets over several minutes and then analyse the data at a later point in time.

The ultra-segmented mode permits a fast rate of acquisition. The blind time of 5µs allows users to trigger on and store signals that appear in quick succession. Users can use this mode to ensure that data in serial protocol or pulse sequence is not lost.

According to the company, parameters such as acquisition mode and segment length are easy to set. The option then automatically calculates how many segments are available. After signal acquisition, users can easily navigate through the acquired waveforms with the history function. In a table, they can directly select the individual segments to be displayed. Alternatively, the history function can be used to automatically play back all segments.

All of the analysis functions offered by R&S RTM oscilloscopes, including QuickMeas, mask tests and cursor measurements, can be used on each acquired segment while in the history and segmented memory mode.




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