Broadband SED of 3C 120 core emission for quiescent (left) and flaring (right) states. Left panel: blue and red solid lines are the synchrotron/SSC model fitting for two different X-ray fluxes, taking into account the radio data and assuming Swift UVOT data are upper limits. Instead the dashed blue line is calculated assuming that optical/UV emission is also produced by the jet. Right panel: SED in flaring state fitting with one-zone synchrotron/SSC (red solid line) and two-zone SSC+ EIC (blue solid line) models. The model parameters are presented in Table 2.