Triggers
R&S
®
RTE
259User Manual 1326.1032.02 ─ 20
Clock level
Sets the voltage level for the clock signal.
Remote command:
TRIGger<m>:SPATtern:CSOurce:LEVel on page 1191
Data level
Sets the voltage level for the data signal.
If the signal value is higher than the data level, the state is 1. Below the level, the sig-
nal state is 0.
Remote command:
TRIGger<m>:LEVel<n>[:VALue] on page 1166
Couple levels (Trigger level and hysteresis coupling)
Sets the trigger levels and hysteresis values for all channels to the values of the cur-
rently selected trigger source. The function affects only the levels defined for the
selected condition. The hysteresis of the external trigger input is an independent value,
and it is not affected by level coupling.
Remote command:
TRIGger<m>:SCOupling on page 1184
Pattern
The pattern contains the bits of the serial data to be found in the data stream. The
maximum length of the pattern is 128 bit. Touch and hold the "Pattern" field to open the
"Bit Pattern Editor" where you can enter the pattern in various formats.
See also: Chapter 13.1.5, "Bit pattern editor", on page 521.
In binary format, an X indicates that the logical level for the bit is not relevant (do not
care).
Remote command:
TRIGger<m>:SPATtern:PATTern on page 1191
6.3.14 TV/Video trigger
Access: [TRIGGER] > "Setup" tab > "Type = TV"
The TV or video trigger is used to analyze analog baseband video signals. You can
trigger on baseband video signals from standard definition and high definition stand-
ards, and also on user defined signals.
The instrument triggers on the line start - the horizontal sync pulse. You can trigger on
all lines, or specify a line number. You can also trigger on the field or frame start.
Also, a delay can be set: Set the "Holdoff events" in the "Holdoff" tab to the number of
fields to be skipped.
For details on holdoff settings, see Chapter 6.4, "Holdoff", on page 264.
Make sure that the trigger level crosses the synchronizing pulses of the video signal,
see "Trigger level" on page 261.
Trigger types