Agilent Technologies ENA Series Guía de usuario Pagina 254

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248 Chapter 5
Making Measurements
Setting the low-latency external trigger mode
The table below describes signals and times in the figure.
Signal, time Description
External Trig External trigger signal to be supplied.
Sampling Time while the E5070B/E5071B is actually performing
measurement.
Index /Index signal of the handler I/O port. When the point trigger
function is ON and the low-latency external trigger mode is ON, it
goes to the High level only before staring measurement of the first
sweep point and returns to the Low level after completing
measurement of all measurement points.
Point Trigger
Period
Time until the E5070B/E5071B is ready to accept a trigger for the
next measurement point. The value depends on the measurement
conditions and the settings of the E5070B/E5071B.
td1 Time set as the external trigger delay time.
td2 Time that the E5070B/E5071B requires internally for setting. This
depends on the settling time for setting the frequency, IF
frequency band, and so on. For zero-span measurement, td2 =
about 150 μs (reference value).
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