This application note explains the Probability of Intercept (POI) pertaining to a radio-frequency (RF) signal analyser, including in the context of product export controls. It further explains the

ThinkRF Real-Time Spectrum Analyser’s mechanism for frequency-domain level triggering and capturing a signal in real-time, and calculates the signal durations corresponding to a 0% POI

and 100% POI.

This application note is applicable to R55x0 and R57x0 products.

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