**Table 1:** Log of VLA observations. The date, programme and configuration are listed, as well as the wavelength observed and the integration time on HD 168112 (in min). Fluxes are given in Table 10.
$\begin{displaymath}{ \begin{tabular}{lllr@{.}lr} \hline \hline \multicolumn{1}{c... ... & & & 18& & 5.0 \\ & & & 20& & 4.7 \\ \hline \end{tabular}}\end{displaymath}$

^a: North arm is in B configuration, East and West arm are in C configuration
but with 3 antennas still in B-type positions.