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The key here is to trigger the Pulse Sync Out of the generator. Thus, the waveform generator creates a pulse synchronously with a marker signal. The marker signal triggers the oscilloscope, and it begins sampling after a specified delay (see Figure 7.2).
<center>[[Image:neoscanfig_7_2.png|thumb|center|600px|<i><b>Figure 7.2</b>: Real-time field measurement using a high-speed digital oscilloscope.</i>]]</center>
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Due to the fast response of the EO crystal it is possible to measure extremely high-bandwidth signals with the normal SNR limitations of wideband signal detection. Based on this capability, [[NeoScan]] can be used as a real-time polarimetric electric field sensor system. It can be used for the measurement of wideband signals with an instantaneous bandwidth up to 20GHz. Figure 7.3 shows an example of a real time measurement of a 6.6 nsec pulse with 10 kV/m peak field strength. The upper trace shown on the oscilloscope is the received signal, and the lower trace is the detected signal.
<center>[[Image:neoscanfig_7_3.png|thumb|center|600px|<i><b>Figure 7.3</b>: An example of a real time measurement of a 6.6 nsec pulse with 10 kV/m peak field strength. The upper trace shown on the oscilloscope is the input signal, and the lower trace is the measured signal.</i>]]</center>