Pulse A Width

Controls: Gen Dlg >> Stream >> Wave >> Pulse >> A Width
Macro: PulseAwidth

Depending on the Width Units setting, this width can be given in percent, degrees, samples, or time. If A Width is set to 0 then the B pulse is the only pulse, and vice-versa.

When relative (Percent or Degrees) units are specified, the actual width of the pulse changes to maintain that portion of each cycle as set by the main wave frequency. As you set the frequency higher and higher, the pulse widths will eventually become so small they are only a single sample wide. Beyond this point you may get unpredictable results.

When absolute (Samples or Seconds) units are specified, the width is constant and only the baseline (0 Level) portion of the wave changes duration with frequency. As you set the frequency higher and higher in these modes, the baseline portion will eventually vanish. Beyond this point you may get unpredictable results. In particular, if the Trigger Mode is set to Normal there won't be a trigger event to cause a trace update.

Macro Notes:

L.1.PulseAwidth=10 sets the Left Stream 1 Pulse A Width to 10 units. Depending on the Width Units setting, this may be percent, degrees, samples, or seconds.

Note that the actual value set may be limited due to the period of the current Tone Frequency. For example, you can't set a pulse width of 10 seconds unless the frequency is less than 0.100 Hz.

Note that setting Pulse values directly via macro does not automatically set the Wave to Pulse. Use Wave=Pulse to do that.

See also Wave Dialog, Pulse Wave.