Remote control commands
R&S
®
NRPM
139
Mannual 1425.8663.02 ─ 08
Trigger sources
The possible trigger conditions and the execution of a trigger depend on the
selected trigger source.
If the signal power exceeds or falls below a reference level set by the trigger
level, the measurement starts after the defined delay time. Waiting for a trigger
event can be skipped by selecting
Trigger
source
Description
Remote commands to initiate the
measurement unconditionally
Hold
Triggered by the remote command.
Immediate
Measures immediately, does not
wait for trigger condition.
-
Internal
Uses the input signal as trigger sig-
nal.
External
1
Uses the digital input signal sup-
plied using a differential pair in the
8-pin sensor module cable.
External
2
Uses the digital input signal sup-
plied at the SMB connector.
Bus
Triggered by the remote command.
Dropout time
The dropout time is useful when dealing with signal with several active slots, for
example GSM signals, as, e.g., shown in
with the signal, a trigger event is to be produced at
A, but not at B or C.
Controlling the measurement