switch the channel user interface.
(3) Press the N_Cycle/Gated softkey to hightlight N_Cycle.
(4) Press the Cycles/Infinite softkey to hightlight Cycles, input the number of
cycles, which is the number of waveform cycles to be output for each
N-cycle pulse train. The range is from 1 to 60 000.
When Infinite is selected, the cycle number of the waveform is set as an
infinite value. The generator outputs a continuous waveform after
receiving trigger signal.
Note: In burst mode, the upper limit of the carrier frequency is half of the
max frequency of the original carrier. Taking a Sine wave as an example,
the maximum frequency is 70 MHz. Press , and set the carrier to 70
MHz, then press the Mode mode key, then press , you can see the
carrier frequency is changed to 35MHz.
Note:
⚫ If needed, Burst Period will increase to cater to the specific number of cycles.
⚫ For an infinite-cycle Burst, External or Manual Trigger is needed to activate
burst.
(5) Burst trigger source could be internal, external or manual. The generator
will generate a burst output when a trigger signal is received and then wait
for the next trigger. Press the Trigger to select the source.
Internal means using the internal trigger source. The generator can only
output N-cycle burst and the burst frequency is determined by the burst
period. Burst period is only available when Cycles and Internal trigger is
hightlighted. Press the Bust Period softkey to set the burst period, which
is the time from the start of a burst to the start of the next burst. The range
is from 20 ns to 500 s (Min = Cycles * Period).
External means using the Sync/Ext Mod/Trig/FSK connector at the rear
panel to input the external trigger signal. A burst will be generated once
the connector gets a TTL pulse with specified polarity.
Manual means using manual trigger. In N-cycle burst interface, each time
you press the Knob under the current channel on the front panel, a burst
will be generated.
Set Gated Burst
In gated burst mode, the generator controls the waveform output according to
the external signal level from the Sync/Ext Mod/Trig/FSK connector at the
rear panel. Gated burst could only be triggered by external trigger source.
Waveform functions which support gated burst are Sine, Square, Ramp,
To Next Page
Loading...
Need help?
General
