\begin{table}%t1
\caption{\label{tab:radioobs}VLA observations.}          
\small%\centerline
 {
\begin{tabular}{c c c c c c c c} 
\hline\hline       
Source       & RA           &  Dec      &$\nu$&Bandwidth&Config.& Date & Duration     \\
             & (J2000)      & (J2000)   &   (MHz)  & (MHz)   &       &      & (h)  \\
             \hline                    
Abell 2345   & 21 27 12.0   & --12 10 30.0 &   325    & 3.125   &   B    &16-Aug.-2006 & 2.0 \\
             &              &             &   325    & 3.125   &   C    &08-Dec.-2006 & 5.4 \\
Abell 1240   & 11 23 37.0   & 43 05 15.0  &   325    & 3.125   &   B    &05-Aug.-2006 & 2.6\\
             &              &             &   325    & 3.125   &   C    &08-Dec.-2006 & 4.7 \\
\hline
Abell 2345-1 & 21 26 43.0  & --12 07 50.0 &    1425    & 50      &   C    &08-Dec.-2006 & 1.9 \\
             & 21 26 43.0  & --12 07 50.0 &    1425    & 50      &   D    &09-Apr.-2007 & 1.0 \\
Abell 2345-2 & 21 27 36.0  &--12 11 25.0 &     1425    & 50      &   C    &08-Dec.-2006 & 2.0 \\
             & 21 27 36.0  &--12 11 25.0 &     1425    & 50      &   D    &09-Apr.-2007 & 1.0 \\
Abell 1240-1 & 11 23 25.0  & 43 10 30.0 &     1425    & 50      &   C    &08-Dec.-2006& 1.8 \\
             & 11 23 25.0  & 43 10 30.0 &     1425    & 50      &   D    &12-Apr.-2007& 1.0 \\
Abell 1240-2 & 11 23 50.0 & 43 00 20.0  &     1425    & 50      &   C    &08-Dec.-2006& 1.9 \\
             & 11 23 50.0 & 43 00 20.0  &     1425    & 50      &   D    &12-Apr.-2007& 1.0 \\	 \hline
Abell 2345   & 21 26 57.2 & --12 12 49   &    1490     & 50      &  AnB   &02-Nov.-1991& 0.1\\
\hline
\end{tabular}}
\medskip
Column~1: source name; Cols.~2,~3: pointing position (RA, Dec); Col.~4: observing frequency; 
Col.~5: observing bandwidth; Col.~6: VLA configuration; Col.~7: dates of observation; Col.~8: net time on source.
\end{table}