There are some errors in Table 2 (as dummy characters that were entered in the source .tex to ensure numbers were aligned by their decimal places were erroneously converted to actual digits when the paper was typeset). For Column 4, the flux density of Cyg A, the values should read 105.4, 88.8, 82.1 and 82.1 Jy.
Author comment submitted on 25 August, 2010 by Dave Green ( dag@mrao.cam.ac.uk )