Upper left panel: fast-light Stokes I image (at an observing frequency of ν_obs = 1 GHz) of the normal plasma (e⁻ − p⁺) jet. The internal structure of the normal plasma jet’s magnetic field is illustrated in the left panel of Fig. 1. Upper right panel: corresponding fast-light Stokes I image of the pair plasma (e⁻ − e⁺) jet. The internal structure of the pair plasma jet’s magnetic field is similarly illustrated in the right panel of Fig. 1. Middle left panel: rendering of the LP intensity of the normal plasma jet. White line segments indicate the electric vector position angles (EVPAs) as projected onto the plane of the sky. The effects of relativistic aberration (see Lyutikov et al. 2005) on the orientation of these EVPAs have been included in these calculations. Middle right panel: corresponding LP intensity image of the pair plasma jet. Lower left panel: stokes V image of the normal plasma jet highlighting the different regions within the jet that produce positive and negative CP. Lower right panel: corresponding Stokes V image of the pair plasma jet. All six images have been convolved with a circular Gaussian beam of FWHM 7.5 mas (shown in the lower left of each panel). The projected PIC cell size is ∼0.9 mas at a source distance of 1 AU.