User manual
Acquisition and Setup
R&S
®
RTO
17User Manual 1316.0827.02 ─ 06
Fig. 2-4: Waveforms acquired with different sample rates
This means that the sample rate must be set to a value 3 to 5 times the fastest frequency
component of the signal. A higher sample rate increases signal fidelity, increases the
chance to capture glitches and other signal anomalies, and improves the zoom-in capa-
bilities.
2.1.2.2 Acquisition Settings
The sample rate can be the same as the constant ADC sample rate, or higher, or lower.
To get a higher sample rate, methods of resolution enhancement are used: interpolation
and equivalent time sampling. To reduce the sample rate, decimation methods help:
sample, peak detect, high resolution and RMS.
As digital waveform data is stored in the memory, and the memory can save many wave-
form records, further waveform arithmetic processing is possible: average and enve-
lope waveforms are resulting waveforms, created from a composite of sample points
taken from multiple acquisitions.
The R&S RTO provides the following acquisition features:
●
You can combine resolution enhancement and waveform decimation modes with
waveform arithmetic.
●
You can display up to three waveforms from one input signal and apply different
decimation and arithmetic to each waveform.
Basics