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Fig.3.27 Diagram of Arbitrary Trigger (Single/Real-time Repeated Trig)
Example 5: Work pattern: Sequence, Add Wave Seg: 4KSin_2MClk, 4kTir_2MClk, clock:
customized 200MHz, Trig Style: Wave Seg (Single), Trig Source: external, polarity: Pos.
Operation steps:
Step 1. Connect the instrument as shown in Fig.3.20.
Connect I/Q signal output on the rear panel to two input ports of a oscilloscope via the BNC
cables, set another signal generator to the pulse modulation output mode and use it as the external
trigger source (pulse width: 200ns, period: 8μs). Connect to Monitor Output of this signal generator to
a BNC tee connector, of which one end is connected to Code Pattern Trigger Input
of the vector signal generator and the other end is connected to the third input port of the
oscilloscope.
Step 2. Select [Arb] under the [Signal Simulation], and Arb Config Dialog pops up (Fig.3.9).
Step 3. Set parameters:
1) Work pattern: Sequence, Add Wave Seg: 4KTri_2MClk, 4KSin_2MClk, Clock: customized
200MHz;
2) Select [Trigger] to set the trigger style: Wave Seg (Single), Trig Source: external, polarity:
positive, delay: off;
Step 4. Set “Arb Seq” to ON.
Step 5. Observe those traces on the oscilloscope.
As shown in Fig.3.28: Signal 1: external trigger signal, Signal 2: I output, Signal 3: Q output.
Each time the pulse arrives, a playback of waveform segment is triggered. Different waveform
segment will be played each time.
