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3.1.5
Set Pulse Wave
The duty ratio of pulse wave represents time quantum from the 50% threshold value of rising edge of the pulse to 50%
threshold value of the next falling edge in each cycle (if waveform is not reversed). You can input parameter configuration
for the function/arbitrary waveform generator to output pulse waveform with variable pulse width and edge time. The
default duty ratio of pulse wave is 50% when powering on. Rising/falling edge time of 72-14126 is 5ns (72-14122 is 6ns/
72-14120 is 7ns).
The specific steps for setting pulse wave with period of 2ms, amplitude of 1.5Vpp, DC offset of 0V, duty ratio
(restricted by minimum pulse width specification 10ns) of 25%, rising edge time of 200µs and falling edge time of
200µs are as follows:
Press Pulse, Freq, Amp, Duty, Rise and Fall (if tag is not highlighted, press corresponding soft function key to select),
and press soft key Freq twice to switch between frequency and period. Input the required value, and then select the unit.
When inputting value of duty ratio, input 25 and press % to finish input. To set falling edge time, please press soft key
Page Up/Down or rotate multi-functional control clockwise when sub-tag is selected to display the next screen of sub-tags
(The sub-tag is editable when the border colour matches the border colour of the channel selected, and the digits are
white on blue), press soft key Fall to input the required value and select the unit.
Figure 3- 6 Set falling edge time
Note: this parameter can also be set with multi-functional control and direction key.
