General Power Meter Functions 2
N1911A/1912A P-Series Power Meters User’s Guide 57
Setting Measurement Channel Gates
A system of gates, controlled by and referenced to a trigger point, is used
to obtain measurement data from a captured trace. The trace data within
each gate period is subsequently used for the individual measurement
calculations. Up to 4 gates can be set up for each channel. Figure 2- 37
shows an example of 4 gates setup to perform the following measurements
simultaneously:
• Average power level of the pulse:
Gate 1, average measurement
• Average “off” power level ahead of the pulse:
Gate 2, average measurement
• Peak to average ratio:
Gate 1, peak- to- average measurement
•Pulse drop:
Gate 3, average measurement, minus Gate 4, average measurement
Figure 2-37 Example of measurement gates
This feature is only available when a P-Series or an E-Series E9320 power sensor is
connected.
Gate 3
Trigger
Gate 2
Gate 4
Gate 1
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