considerably depending upon how they are calculated. The diameter was derived by one of several ways depending on the structure of the brightness distribution. If a two-dimensional Gaussian fit provided a satisfactory model to the observed structureless surface distribution, its deconvolved FWHM major and minor axis are given. The equivalent diameter is the square root of their product. To obtain the full diameter, this value must be multiplied with a conversion factor which is a function of the beam FWHM and depends upon the intrinsic surface distribution of the source. We assumed a spherical constant emissivity shell of 0.5 and used formula 5 and Table 1 from van Hoof ([@vHoof00]) to estimate the true radii. For small objects, if the Gaussian deconvolution was well determined and similar at 3 and 6 cm, the FWHM at 3 cm is given. If the deconvolution produced a point source at 6 cm, the source size at 3 cm is given. If the source was still a point source at 3 cm, the beam-size is an upper limit. If the source was extended, a Gaussian model was usually not a good representation of the radio source. The diameter of the PN was measured on 