HP Saw E4419B manual To set the duty cycle Press

Power Meter Operation

Measuring Pulsed Signals

To set the duty cycle:

1. Press	System	, A Input Settings, More	. The current setting
	Inputs

of the duty cycle is displayed under the Duty Cycle softkey.

2.To change this setting press Duty Cycle . The power meter displays the duty cycle in a pop up window. Modify this value (see below) until the desired duty cycle is displayed.

■Use or to modify the digit on which the cursor is currently positioned.

■Use or to move to other digits.

3.To confirm your choice press % .

4.Duty Cycle Off On is automatically set to “On” when a value is entered using Duty Cycle .

Duty cycle can be disabled and re-enabled simply by pressing

Duty Cycle Off On .

Note	Pulse power averages out any aberrations in the pulse such as
	overshooting or ringing. For this reason it is called pulse power
	and not peak power or peak pulse power.
	In order to ensure accurate pulse power readings, the input signal
	must be pulsed with a rectangular pulse. Other pulse shapes (such
	as triangle, chirp or Gaussian) will cause erroneous results.
	The pulse power on/off ratio must be much greater than the duty
	cycle ratio.

HP E4419B User’s Guide 2-45