MP7505 Series User Manual
Note: Before configuring the waveform parameters, you must first select the
channel you want to configure. Press CH1 or CH2 to select the corresponding
channel, and the corresponding channel area in the user interface will light up.
(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 1 000 000.
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 100 MHz. Press , and set the carrier to 100 MHz,
then press the Burst mode key, then press , you can see the carrier
frequency is changed to 50 MHz.
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 hightlit. 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 Mod/FSK/Trig 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. To set the TTL pulse polarity, press the Slope
softkey to switch between Positive and Negative.
Manual means using manual trigger. In N-cycle burst interface, each time you
press the Trigger button 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 Mod/FSK/Trig connector at the rear panel. Gated burst
could only be triggered by external trigger source. Waveform functions which
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