As Michal suggested, we compared the Hrec structures excited during the broad band noise injections through the SDB1 bench marionetta actuators (#59977) and SDB1 near-field sweep magnetic injections (#60083).

Figure 1: overview of Hrec during the injections.

Figure 2: a resonance structure is excited at ~29.65 Hz during the magnetic injection (black curve) and TZ, TX dof noise injections (red and green curves). The SCRL line at 26.6 Hz is also excited.

Figure 3: in the frequency band ~(80-130) Hz, we observed i) an exited structure at ~91.6 Hz during the mechanical (TX dof, green curve) and magnetic injections; ii) a resonance at ~111.6 Hz (TZ dof) and at ~112.5 Hz (TX dof); iii) WE_MIR_permline_ext1 - CALnoise line at 106.5 Hz is also excited for both injections.

Figure 4:  in the frequency band ~(130-230) Hz, there are clear match of some resonances at ~133.5 Hz, ~157.54Hz, ~176.5Hz, ~196.5Hz, ~210-220 Hz.

Figure 5: a resonance is excited at  ~276 Hz  (TY, TZ dofs)  and at ~307 Hz (TX, TY, TZ  dofs).