Getting started
R&S
®
RTE
77User Manual 1326.1032.02 ─ 20
3.3.3 Changing the waveform scaling and position
As you can see on the y-axis of the display, the calibration signal has a vertical offset of
about 500 mV. The value can differ.
This value is also indicated in the signal icon for channel1 (3rd row). If you press the
[Ch1] key, the "Vertical" settings dialog box also displays the "Offset" value. The offset
is the DC component of the signal.
If you use a passive probe, you can filter the DC component by using the AC coupling
function. Then you quickly find the new trigger level, and try out the scaling functions:
1. Press the [Ch1] key on the front panel (in the [VERTICAL] area) to display the "Ver-
tical" dialog box.
2. Change the "Coupling" to "AC". Close the dialog box.
The DC component of the signal is eliminated; the waveform position moves down
vertically and is now centered on 0 V.
Trying out the instrument
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