Trigger
R&S
®
RTC1000
50
User Manual 1335.7352.02 ─ 02
AUTO LEVEL
Automatic filter setting (default setting).
AC
The trigger signal is coupled through a 5
Hz high-pass filter which suppresses the DC
portion of the trigger signal. With a changing DC portion, the trigger level remains at
the set point in the AC signal.
DC
The trigger signal is coupled to the trigger circuit with all signal portions (AC and DC
voltage).
HF
The trigger signal is coupled through a high-pass filter with a minimum cut-off fre-
quency (-3 dB) of 30
kHz. Use this coupling type only with high frequency signals.
LOWPASS
The trigger signal is coupled through a low-pass filter with an upper cut-off frequency of
5 kHz. This filter removes higher frequencies and is available with AC and DC cou-
pling.
NOISE REJECT
A low-pass filter with a cut-off frequency of 100 MHz improves the noise performance
for the trigger amplifier. This filter removes higher frequencies and is available with AC
and DC coupling.
Note:
The coupling types "LOWPASS" and "NOISE REJECT" cannot be activated
simultaneously.
Edge Trigger
