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  1. ; ; (, 2024 IEEE International Conference on Communications Workshops)
    A simple “RF-flashlight” (or ground-to-satellite) interference testbed is proposed to experimentally verify (i) real-time geofencing (RTG) for protecting passive Earth Exploration Satellite Services (EESS) radiometer measurements from 5G/6G mm-wave transmissions, and (ii) ground-to-satellite propagationmodels used in the interference modeling of this spectrumcoexistence scenario. RTG is a stronger EESS protectionmechanism than the current methodology recommended by theITU based on a worst-case interference threshold whilesimultaneously enabling dynamic spectrum sharing and coexistencewith 5G/6G wireless networks. Similarly, verifying moresophisticated RF propagation models that include ground topology,buildings, and non-line-of-sight paths will provide better estimatesof interference than the current ITU line-of-sight model and, thus,a more reliable basis for establishing a consensus among thespectrum stakeholders. 
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