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The interaction of Alfv\'{e}n Eigenmodes (AEs) and energetic particles is oneof many important factors determining the success of future tokamaks. In JET,eight in-vessel antennas were installed to actively probe stable AEs withfrequencies ranging 25-250 kHz and toroidal mode numbers $\vert n \vert < 20$.During the 2019-2020 deuterium campaign, almost 7500 resonances and theirfrequencies $f_0$, net damping rates $\gamma < 0$, and toroidal mode numberswere measured in almost 800 plasma discharges. From a statistical analysis ofthis database, continuum and radiative damping are inferred to increase withedge safety factor, edge magnetic shear, and when including non-ideal effects.Both stable AE observations and their associated damping rates are found todecrease with $\vert n \vert$. Active antenna excitation is also found to beineffective in H-mode as opposed to L-mode; this is likely due to the increasededge density gradient's effect on accessibility and ELM-related noise's impacton mode identification. A novel measurement is reported of a marginally stable,edge-localized Ellipticity-induced AE probed by the antennas during high-powerauxiliary heating (ICRH and NBI) up to 25 MW. NOVA-K kinetic-MHD simulationsshow good agreement with experimental measurements of $f_0$, $\gamma$, and $n$,indicating the dominance of continuum and electron Landau damping in this case.Similar experimental and computational studies are planned for the recenthydrogen and ongoing tritium campaigns, in preparation for the upcoming DTcampaign.

A novel measurement of marginal Alfv\'{e}n Eigenmode stability during high power auxiliary heating in JET