Output of an eddy-resolving model of the North Atlantic is diagnosed in the vicinity of the Gulf Stream (GS), using the three-dimensional quasi-geostrophic transient wave activity flux diagnostic developed by Plumb <1986>. The model North Atlantic shows large transient wave activity along the model GS and along the edge of the Mediterranean Outflow. The fluxes show advection of wave activity by the GS from the separation point and radiation of wave activity from the GS in the top 1000 m. The wave radiation from the model GS is particularly clear to its south and points southwestward is general. The fluxes in and around the Mediterranean Outflow appear to be generated and dissipated locally. The vertical component of the transient wave activity flux is downward on average at all depths, suggesting conversion of baroclinic energy supplied near the surface into kinetic energy distributed throughout the depth. Eddy fields show that transient eddies tend to reinforce quasi-stationary meanders in the GS just downstream of the separation point. We also find evidence for eddy forcing of the northern recirculation generated in the model, in agreement with the available observations. ¿ 2000 American Geophysical Union