High Definition Oscilloscopes from Rohde & Schwarz: Signal Analysis with 16-bit Vertical Resolution
The high definition (HD) mode increases the vertical resolution of the R&S RTO and R&S RTE oscilloscopes
to up to 16 bits - a 256-fold improvement over 8-bit resolution. Waveforms are sharper and show signal details that
would otherwise be masked by noise. Users benefit from even more precise analysis results.
Munich, November 6, 2014 - High definition describes the capability of R&S
RTO and
R&S RTE
oscilloscopes to work with applications for which a high vertical resolution is essential. This is especially
the case when low-voltage components on a signal that also exhibits high-voltage components need to be analyzed in
detail. One example is the characterization of switch mode power supplies. The voltages across the switching device
must be determined during the off and on times within the same acquisition. Because the voltage variations during
these switching cycles can be several hundred volts, a high resolution is essential for the precise measurement of
small voltage components.
 The
high definition mode increases the vertical resolution of Rohde & Schwarz oscilloscopes to up to 16 bits - a 256-fold
improvement over 8-bit resolution. To achieve this higher resolution, the signal is low-pass filtered directly after
the A/D converter. The filter reduces the noise, thereby increasing the signal-to-noise ratio. Users can adjust the
bandwidth of the lowpass filter from 10 kHz to 500 MHz as needed to match the characteristics of the applied signal.
The lower the filter bandwidth, the higher the resolution.
The higher resolution leads to a sharper waveform display, showing signal details that would otherwise be masked
by noise. To be able to analyze these waveforms in detail, the input sensitivity of the oscilloscopes has been increased
to 500 µV/div. Thanks to the low-noise frontend and the highly accurate single-core A/D converter, the R&S RTO
and R&S RTE oscilloscopes have an excellent dynamic range and measurement accuracy. Switching on high definition
mode allows users to benefit from even more precise measurement results.
The unique digital trigger system from Rohde & Schwarz is sensitive enough to trigger on the highest-resolution
signal. Each of the up to 16-bit samples is checked against the trigger conditions and can initiate a trigger. This
means that Rohde & Schwarz oscilloscopes are capable of isolating even the smallest signal events for detailed
analysis.
Switching on the high definition mode does not compromise measurement speed or functions. Since the digital filtering,
which improves resolution and noise suppression, is implemented in realtime in the oscilloscope?s ASIC, the acquisition
and processing rates remain high. The oscilloscope enables smooth operation and measurement results are available
quickly. Furthermore all analysis tools, such as automatic measurements, FFT and the history mode, can also be used
in high definition mode.
The R&S RTO-K17 and R&S RTE-K17 high definition software options are now available from Rohde & Schwarz.
They will be demonstrated for the first time publicly at electronica in hall A1, booth 307. Moreover, visit www.scope-of-the-art.com/ad/press/rto-k17
for more information about sales promotions from Rohde & Schwarz.
About Rohde & Schwarz
The Rohde & Schwarz electronics group is a leading supplier of solutions in the fields of test and measurement,
broadcasting, secure communications, and radiomonitoring and radiolocation. Founded 80 years ago, this independent
global company has an extensive sales network and is present in more than 70 countries. It has around 9300 employees
and achieved a net revenue of EUR 1.9 billion (USD 2.5 billion) in fiscal year 2012/2013 (July 2012 through June 2013).
The company is headquartered in Munich, Germany.
For more information, visit: www.rohde-schwarz.com
R&S ® is a registered trademark of Rohde & Schwarz GmbH & Co. KG
Posted November 6, 2014
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