89
5. Use Start Freq and Stop Freq or Center Freq and Freq Span to set the range of the
frequency. Press
F3
to select Sta_Freq or Cen_Freq, and set the desired
value.
6. Press
F4
to select StopFreq or FreqSpan, and set the desired value.
7. Press
F5
to select NextPage, press it again to enter the next page.
8. Press
F1
to select the source. Internal means using the internal source.
External means using the
Ext Trig/FSK/Burst
connector in the rear panel to input
the external signal. Manual means choosing manual trigger; in Sweep interface,
press the
knob
on the front panel to trigger a Sweep.
5.37. To Generate Burst (Only P4125
– 4165)
Burst function is only used for CH1. Press the
Mod
button, then press
F3
to select
Burst to generate versatile waveforms in burst. Burst can last for certain times of waveform
cycle (N-Cycle Burst), or to be controlled by external gated signals (Gated Burst). Bust can
apply to Sine, Square, Ramp, Pulse and Arbitrary waveforms (Noise cannot be used).
Term Explanation
Burst:
Output Waveforms with set cycle times. Generally it is called BURST function within
every Signal Generator.
N-Cycle Burst:
N-Cycle has specific number of waveform cycles, and every burst is activated by a
trigger event.
Gated Burst
:
Gated burst use external source to control burst as when to be activated.
5.38. Set the N-Cycle Burst
Current Parameter
Cycles
Load
Start Phase
N Cycle
Waveform
Source
Figure 0-21: The User Interface of N-Cycle Burst
