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Trigger
R&S
®
RTA4000
81
User Manual 1335.7898.02 ─ 08
"Edge A/B"
Triggers on a sequence of two edge trigger conditions.
See
Chapter 6.5, "Edge A/B trigger"
"Width"
Triggers on pulse width.
See
"Video"
Triggers on various PAL, NTSC and HDTV standard video signals.
See
"Pattern"
Triggers on logical combinations of the input channels.
See
Chapter 6.8, "Pattern trigger"
"Runt"
Triggers on pulses lower than normal in amplitude.
See
"Risetime"
Triggers on fast or slow rising or falling edges.
See
Chapter 6.10, "Rise time trigger"
"Timeout"
Triggers on signal level timeout.
See
Chapter 6.11, "Timeout trigger"
"Line"
The line trigger uses the waveform of the power supply's alternating
line voltage (typically 50 Hz or 60 Hz AC) as the trigger signal source.
Use this trigger to detect issues related to the frequency of the power
grid.
The line trigger does not have any settings.
"Serial
Bus"
Triggers on a serial bus. Requires that at least one protocol option
R&S
RTA-K1, K2, or K3 is installed, a serial bus is configured, and a
decoded signal is available.
See
Chapter 13.1.1, "Protocol - common settings"
Remote command:
Source
Selects the trigger source.
"C1, C2, C3,
C4"
Select one of the analog input channels as trigger source.
"D0 to D15"
Select one of the digital channels as trigger source if MSO option
R&S
RTA-B1 is installed.
Not available for video, runt, and risetime trigger.
"Extern"
Sets the external trigger input on the front panel as trigger source.
Available for edge and video trigger.
"B1, B2, B3 or
B4"
Serial bus that is used for triggering on protocols. Only available, if
the trigger type "Serial
Bus" is selected.
Remote command:
Hold Off, Hold Off Time
Enables the hold off and defines the "Hold
Off
Time". The next trigger occurs only after
the hold off time has passed.
General trigger settings