When Burst is enabled, press Type to select “Infinite” and the instrument will set 
the  trigger  source  to  “Manual”  automatically.  An  infinite  cycle pulse  sketch  will 
appear on the screen. 
 
 
Figure 7-2 Infinite Burst 
 
 
Gated Burst 
 
In  Gated  Mode,  the  generator  controls  the  waveform  output  according  to  the 
external  signal  level  from  the  [Mod/FSK/Trig]  connector  at  the  rear  panel. 
Waveform  functions  which  support Gated Burst are  Sine, Square, Ramp, Pulse, 
Noise and arbitrary waveforms (except DC).   
 
When the gated signal is “True”, the generator outputs a continuous waveform; 
when the gated signal is “False”, the generator completes the current period, and 
then stops and holds on the voltage level corresponding to the initial burst phase