Rohde & Schwarz RTA4004 - Page 81

Trigger
R&S
®
RTA4000
81User 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", on page 84.
"Width"
Triggers on pulse width.
See Chapter 6.6, "Width trigger", on page 85.
"Video"
Triggers on various PAL, NTSC and HDTV standard video signals.
See Chapter 6.7, "Video trigger", on page 88.
"Pattern"
Triggers on logical combinations of the input channels.
See Chapter 6.8, "Pattern trigger", on page 90.
"Runt"
Triggers on pulses lower than normal in amplitude.
See Chapter 6.9, "Runt trigger", on page 93.
"Risetime"
Triggers on fast or slow rising or falling edges.
See Chapter 6.10, "Rise time trigger", on page 94.
"Timeout"
Triggers on signal level timeout.
See Chapter 6.11, "Timeout trigger", on page 96.
"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", on page 251.
Remote command:
TRIGger:A:TYPE on page 461
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:
TRIGger:A:SOURce on page 460
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