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Waveform Setup
R&S
®
RTC1000
40User Manual 1335.7352.02 ─ 04
– Set the trigger position to minimum or maximum value: "MINIMUM" or
"MAXIMUM".
– Set the trigger position to zero.
3. To set the time reference point:
a) Press the [MENU] key.
b) Press the "TIME REF." softkey.
c) Use the universal knob in the Cursour/Menu section to adjust the value.
You can set the reference point from -6 divisions to +6 divisions with 0 being the
center and default setting.
4.3 Acquisition Setup
During an acquisition, the R&S RTC1000 captures the signal and converts it to digital
samples. The digital samples are processed according to the acquisition settings. The
result is a waveform record that is displayed on the screen and stored in memory.
The rate of recording waveform samples - the number of waveform samples per sec-
ond - is the sampling rate. The higher the sampling rate, the better the resolution and
the more details of the waveform are visible.
A sufficient resolution is essential for correct reconstruction of the waveform. If the sig-
nal is undersampled, aliasing occurs - a false waveform is displayed. To avoid aliasing
and accurately reconstruct a signal, the sampling rate must be at least 3 to 5 times the
fastest frequency component of the signal.
4.3.1 RUN/STOP and SINGLE
In run mode, signals are shown on the screen according to the selected acquisition
and trigger conditions. Previously captured signals are discarded with each new acqui-
sition.
â–º To stop the acquisition, press the [RUN/STOP] key.
Now the captured signal remains on the screen and you can analyze it. The key is
illuminated in red.
â–º To capture and display exactly one waveform record, press the [SINGLE] key in the
Trigger section.
4.3.2 Acquisition Settings
Acquisition settings define the processing of the captured samples in the instrument.
The current sampling rate is shown on top of the grid.
â–º To adjust acquisition settings, press the [ACQUIRE] key.
Acquisition Setup
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