Effect of three cycle 2 extended antenna configurations on the intrinsic emission of a number of face-on wind models, presented in panel A). Panel B): effect of the C34-1 configuration, with a minimum baslesine of 14.2 m, a maximum baseline of 165.6 m, and an angular resolution of 1.08 arcsec. Panel C): effect of the C34-4 configuration. It is characterised by a minimum baseline of 20.6 m, a maximum baseline of 558.2 m, and a resolution of 0.32 arcsec. Finally, panel D): influence of the C34-7 configuration, with a minimum baseline of 40.6 m, a maximum baseline of 1507.9 m, and a resolution of 0.12 arcsec.