Waveform Setup
R&S
®
RTC1000
36
User Manual 1335.7352.02 ─ 02
BANDWIDTH (BWL)
Inserts an analog 20 MHz low-pass filter to the signal path. Higher frequencies are
removed to reduce noise.
Limited bandwidth is indicated by "B
W
" in the waveform label.
INVERT (INV)
Turns the inversion of the signal amplitude on or off. To invert means to reflect the volt-
age values of all signal components against the ground level. Inversion affects only the
display of the signal but not the trigger.
For example: if the oscilloscope triggers on the rising edge, the trigger is not changed
by inversion, but the actually rising edge is displayed as falling edge.
Inversion is indicated in the waveform labels by line above the channel name.
DESKEW
Each analog channel can be shifted in time by
±
32 ns. The deskew setting is used to
compensate different signal delays when different cable lengths or probes are used.
To activate this offset, press the softkey. Turn the UNIVERSAL knob to set the value,
or use the KEYPAD.
PROBE
The attenuation of the delivered probes R&S
RT-ZP03 probe can be switched: 10:1 or
1:1. The instrument does not detect the probe attenuation automatically. Therefore,
make sure to set up the correct attenuation factor manually.
You can select a predefined value "x1", "x10", "x100", "x1000". If predefined values do
not fit, select "USER" and enter a value between x0.001 and x1000.
"UNIT" defines the measurement unit:
●
V - for voltage measurements
●
A - for current measurements if a current probe is connected, or current is mea-
sured using a shunt. The menu shows the most common factors "1V/A",
"100mV/A", "10mV/A" and "1mV/A".
All measurements are always displayed with the correct unit and scale.
THRESHOLD menu
The "THRESHOLD" key on page 2/2 opens the threshold menu.
The threshold defines the level to detect a high or low signal state if analog channels
are used as source for the serial bus analysis or logic trigger.
"THRESH-
OLD"
Sets the threshold value.
"HYSTERE-
SIS"
Sets a range around the threshold level to avoid the change of signal
states due to noise. If the signal oscillates only inside the hysteresis
range and crosses the threshold, no state transition occurs.
"FIND LEVEL"
The instrument analyzes the channel and sets the appropriate thresh-
old.
Vertical Setup
