102 UTG2000B Series
3.3.3 Gating mode
Press soft function keys Type → Gated successively on the interface to enter gating mode. In
mode of gating pulse train, trigger source, trigger output, trigger edge, burst period (period of pulse
train) and recurring number will be automatically hidden in parameter list. As only external trigger
source can be used, waveform generator is triggered according to hardware of external digital
modulation interface (FSK Trig connector) of back panel. When polarity is positive and trigger input
signal is at high level, a continuous waveform is output; when trigger input signal is at low level, the
current waveform period is finished first and then stop at the level corresponding to initial phase of
the waveform selected. For noise waveform, when gated signal is spurious, output will be
immediately stopped. Polarity can be changed with multi-functional knob and direction key on the
interface for selecting gating mode (as shown in the figure below) or by pressing soft key Param
→
Polarity .
Figure 3 -49 Select gating mode
Infinite mode
Press soft function keys Type →
Infinite successively on the interface for starting pulse
function to enter infinite mode. In mode of infinite pulse train, burst period (period of pulse train)
and recurring number will be automatically hidden in parameter list. Infinite pulse train amounts to
infinite cycle index of waveform. The signal generator outputs continuous waveform when receiving
trigger signal. The trigger source of pulse train can be internal, external or manual in this mode. To
change it, you can use multi-functional knob and direction key on the interface for selecting type of
pulse train (as shown in the figure below) or press soft function key Param
→ Source
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