Test & Measurement

Spectrum analysis option added to 1GHz oscilloscope

26th February 2015
Mick Elliott

Embedded World exhibition in Nuremberg was the stage for Rohde & Schwarz, the local T&M team, to unveil a spectrum analysis and spectrogram option for its RTM oscilloscope family. The instrument can analyse the time domain while simultaneously analysing the spectrum, logic and serial protocol. Interactions such as those that occur in electronic devices with RF components are quickly analysed in a single measurement.

Time and spectrum analyses can be configured completely independently of one another. This means that users can simultaneously analyse signal details that differ in time and frequency, with the optimum settings for each. Separate implementation of the signal paths makes this possible.

Like a spectrum analyser, important parameters such as center frequency and resolution bandwidth can be specifically configured to match each measurement task. The hardware-implemented digital downconverter (DDC) reduces the spectrum to the components relevant for analysis..

Additional displays for min. hold, max. hold and average, as well as markers for automatic peak value searches, support the user during spectrum analysis. Changes in the spectrum over time or sporadic unwanted signals are immediately visible in the spectrogram display. The amplitudes versus frequency and time are color coded.

With the R&SRTM-K15 history and segmented memory option, users can load all acquisition components from the 460 MSa deep memory and analyse them with the R&S RTM measurement functions. The R&S RTM portfolio, which already consists of models with 200 MHz, 350 MHz and 500 MHz bandwidth, now includes two-channel and four-channel models with 1 GHz bandwidth. The new models naturally exhibit the same excellent analog characteristics, offering true 1mV/div at the full bandwidth and full ADC resolution with exceedingly low 270 µV noise.

The new 1 GHz R&S RTM oscilloscopes with two or four channels and the R&S RTM-K18 spectrum analysis and spectrogram option are now available from Rohde & Schwarz.

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