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4. Operating Instruction
4.2 Advanced operation guide
132
The time gate should be moved in the center of pulse train 2, and the results are shown in Fig. 4.48. By this
time, only the spectrum of Signal 2 can be observed; the edge pulse spectrum of Signal 2 and Signal 1 are
removed.
Fig. 4.47 Observation of Signal 1 by time gate
Fig. 4.48 Observation of Signal 2 by time gate
Prompt
Applicable conditions for measurement of time gate
The time gate is a useful tool for the measurement and analysis of various signals. However, the signals
repeatedly occur, and contain the trigger signal of TTL synchronous with the time gate.
There are three ways to realize the measurement of the time gate of 4051 Series Signal/Spectrum Analyzer:
gating LO, video and FFT which are introduced as follows:
Summary of Contents for 4051 Series
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