Agilent Technologies E6392B Guide de l'utilisateur télécharger pdf (Page 138)

Chapter 3 137

Screen Reference

SPECTRUM MONITOR

3. Screen Reference

o Knob MKR/Cursor: Toggles the function of the CURSOR CONTROL knob

between Cursor

and MKR for marker control.

o Marker Coars/Fine: Toggles the marker control between Coars

for coarse

and Fine

to move the marker with 10 dots (coarse) or 1 dot (fine) resolution.

The marker readouts for the frequency and amplitude are available at any

point of the measured trace.

o More (2 of 3): Displays softkey menu 3.

o Return: Displays the initial screen with function modes.

Softkey Menu 3

o Print: Allows you to print a hardcopy of a graphic image from the screen.

o More (3 of 3): Returns to softkey menu 1.

o Return: Displays the initial screen with function modes.

Explanation

When the Start softkey is pressed, the Test Set tries to synchronize with the bursted

signal by amplitude triggering which uses the rising (low-to-high) amplitude

transition in pulsed carriers as the trigger source. If this synchronization fails, for

example when the signal is a continuous wave, the Test Set is triggered

immediately.

NOTE When you are measuring a bursted signal with the continuous trigger mode and the

waveform disappears suddenly, the Test Set may lose synchronization with the

burst signal. If this happens, press the Abort softkey, and then the Start softkey to

restart the measurement. This resynchronizes the measurement because the Test

Set determines the measurement timing for the burst signal when the Start softkey

is pressed and repeats the measurements with every 8-slot timing.

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Agilent Technologies E6392B Guide de l'utilisateur Page 138