The CMB dipole at 370 km/s is interpreted as our kinematic motion through the CMB rest frame. This kinematic dipole should produce a matching dipole in distant radio-source and quasar number counts at the same amplitude and direction. Recent NVSS and RACS-low surveys consistently find a radio dipole exceeding the kinematic prediction by factors of 2 to 4, with direction offset from the CMB dipole by about 30 degrees (Secrest 2021; Appleby 2016).
The standard model assumes the CMB dipole is purely kinematic, sourced entirely by our solar-system motion through a globally isotropic universe. Distant-source dipoles must therefore exactly match the CMB dipole. A persistent excess in the radio-dipole amplitude with a direction offset has no source in the model.
SCT replaces the hot-dense-center with a superluminal collision and the thermalized debris field. From this single change, our patch is one component of a multi-pocket gravitationally coupled system created by the same parent-scale collision (P58, P59), and our pocket retains a residual frame velocity within its parent frame set by the original collision geometry: v_frame ≈ v_rel(final) × (b/R_min) (P63). This frame velocity is a permanent kinematic property of our patch that propagates coherently across the entire observable volume.
The CMB dipole and the radio-source dipole sample different things. The local CMB dipole at 370 km/s reflects the small kinematic component of our solar-system motion through the parent frame. The radio-source dipole at deeper redshift integrates the full residual-frame-velocity contribution plus the gravitational influence of nearby sibling pockets at separations of roughly 1 to 2 Gpc with recession velocities 0.23c to 0.47c (P60). The two probe overlapping but non-identical phenomena, so they correctly disagree in amplitude. The 30-degree direction offset traces the geometry between the cascade impact-parameter axis (which sets v_frame) and the local Hubble-flow direction (P64).
The KBC supervoid (P19) adds a smaller bulk-flow contribution from Λ_eff-gradient outflow, augmenting the radio dipole at intermediate redshift without affecting the CMB dipole. The same M9 framework that explains the broader dark-flow phenomenon (recid 12) explains the CMB dipole excess as one observational projection of the multi-pocket gravitational coupling. There is no need for an unidentified systematic in the radio surveys or for a multiverse-scale anisotropy beyond the cosmological principle.
If higher-precision SKA-era radio surveys recover a radio-source dipole consistent with the kinematic CMB dipole at the 0.5% level (zero excess, zero direction offset), the M9 sibling-pocket plus residual-frame-velocity explanation fails. Equivalently, if the radio-dipole direction is found to be perpendicular to the predicted nearest-sibling direction at greater than 3σ, the geometric prediction P64 is refuted.