Acquisition and waveform setup
R&S
®
RTP
155User Manual 1337.9952.02 ─ 12
Remote command:
ACQuire:SEGMented:AUToreplay on page 1199
Display time
Defines the display speed of the fast segmentation acquisition series. Display starts
after the series has been captured completely.
5.4.4 High definition mode
The high definition mode offers up to 16 bits of vertical resolution. Higher vertical reso-
lution reduces quantization noise and acquires waveforms of higher accuracy with finer
details of the signal to be seen.
The number of vertical resolution bits defines the number of vertical levels that the
acquisition samples are mapped to (quantization). 16 bits of resolution represent
65536 voltage quantization levels, while 8 bits of resolution represent only 256 voltage
levels. The waveform values are recorded with 16 bit word length, except for peak
detect decimation.
The higher vertical resolution is achieved by applying a digital low pass filter (DSP fil-
ter) to the output of the ADC, which reduces the bandwidth of the signal. Increasing the
bandwidth reduces the resulting digital resolution. The high definition is also applied to
the digital trigger, thus the R&S RTP can trigger with the same high resolution with
which they can display signals.
High definition can be used, for example, to measure slow pulses with high accuracy,
or to analyze AM signals with very low modilation index, as used in radar.
See also:
●
Chapter 5.1.1, "Vertical system", on page 131
●
Chapter 5.1.2, "Sampling and acquisition", on page 134
5.4.4.1 High definition settings
Access: "App Cockpit" menu > "HD"
High definition is a special acquisition mode of the oscilloscope. This mode has only
one setting - the filter bandwidth.
Acquire settings
To Next Page
Loading...
