Changes in polarimetric quantities along the integration path in the static background jet component model. The calculations are performed for photons at ν = 230 GHz, which corresponds to τ ≈ 1 in the SED plot (left panel of Fig. 2). Shown are the following quantities: panel a: Stokes I (where I ≡ I_ν is the specific intensity in cgs units [ergss⁻¹ cm⁻²ster⁻¹Hz⁻¹]); panel b: optical and Faraday depths (τ_abs and τ_F), where τ_F = ∫ρ_Vdl; panel c: fractional linear and circular polarization (FLP and FCP), where and FCP = V/I (here we show absolute values, not percentages); panel d: rotation measure (here we show absolute value); panel e: electric vector position angle EVPA = arg(Q + iU)/2; and panel f: EVPA plotted as a function of linearly polarized flux . The spectra shown in Fig. 2 (left panel) are measured at x = 20 L_unit.