$\begin{figure} { \psfig{figure=9722.f6a.ps,width=8.8cm,angle=-90}\psfig{figure=9... ...=9722.f6c.ps,width=8.8cm}\psfig{figure=9722.f6d.ps,width=8.8cm} } \end{figure}$

Figure 6: Maps of the radio source 0011-023 at redshift z=2.08. Upper left is the 4.5 GHz total intensity map, having a FWHM of 0.5 arcsec, with the first contour at 0.2 mJy beam^-1 and a peak surface brightness of 149 mJy beam^-1. Upper right is a contour map of total intensity at 8.2 GHz, with the first contour at 0.054 mJy beam^-1 . Lower left is the map of polarized flux at 4.5 GHz, with the first contour 0.078 mJy beam^-1 and peak surface brightness of 39 mJy beam^-1; superimposed are vectors representing the strenght and direction of the magnetic field. Lower right is a map of the spectral index calculated between the frequencies 4.5 GHz and 8.2 GHz

$\begin{figure} { \psfig{figure=9722.f7a.ps,width=8.8cm,height=9.5cm}\psfig{figur... ...height=9.5cm}\psfig{figure=9722.f7d.ps,width=8.8cm,height=9.5cm} }\end{figure}$

Figure 7: Maps of the radio source 0152-209 at redshift z=1.89. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.172 mJy beam^-1 and 96 mJy beam^-1 for the 4.5 GHz map; 0.078 mJy beam^-1 and 40 mJy beam^-1 for the 8.2 GHz map; 0.11 mJy beam^-1 and 4.7 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722.f8a.ps,height=11.5cm}\psfig{figure=9722.f8b.... ...2.f8c.ps,height=11.5cm}\psfig{figure=9722.f8d.ps,height=11.5cm} }\end{figure}$

Figure 8: Maps of the radio source 0930+389 at redshift z=2.395. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.138 mJy beam^-1 and 30 mJy beam^-1 for the 4.5 GHz map; 0.055 mJy beam^-1 and 12 mJy beam^-1 for the 8.2 GHz map; 0.074 mJy beam^-1 and 1.7 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722.f9a.ps,width=8.5cm}\psfig{figure=9722.f9b.ps... ...e=9722.f9c.ps,width=8.5cm}\psfig{figure=9722.f9d.ps,width=8.5cm} }\end{figure}$

Figure 9: Maps of the radio source 1017-220 at redshift z=1.77. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.159 mJy beam^-1 and 253 mJy beam^-1 for the 4.5 GHz map; 0.059 mJy beam^-1 and 139 mJy beam^-1 for the 8.2 GHz map; 0.084 mJy beam^-1 and 0.35 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f10a.ps,angle=-90,width=9cm}\psfig{figure=972... ...gure=9722f10c.eps,width=9cm}\psfig{figure=9722f10d.ps,width=9cm} }\end{figure}$

Figure 10: Maps of the radio source 1019+0534 at redshift z=2.765. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.136 mJy beam^-1 and 52 mJy beam^-1 for the 4.5 GHz map; 0.041 mJy beam^-1 and 24 mJy beam^-1 for the 8.2 GHz map; 0.067 mJy beam^-1 and 1.6 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f11a.ps,width=9cm,angle=-90}\psfig{figure=972... ...gure=9722f11c.eps,width=9cm}\psfig{figure=9722f11d.ps,width=9cm} }\end{figure}$

Figure 11: Maps of the radio source 1031+34 at redshift z=2.10. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.081 mJy beam^-1 and 48 mJy beam^-1 for the 4.5 GHz map; 0.067 mJy beam^-1 and 15 mJy beam^-1 for the 8.2 GHz map; 0.051 mJy beam^-1 and 4.7 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f12c.ps,width=5.5cm,angle=-90}\psfig{figure=9... ...5.5cm,angle=-90}\psfig{figure=9722f12b.ps,width=6.3cm,angle=-90} }\end{figure}$

Figure 12: Maps of the radio source 1039+681 at redshift z=2.53. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.134 mJy beam^-1 and 22 mJy beam^-1 for the 4.5 GHz map; 0.086 mJy beam^-1 and 8.3 mJy beam^-1 for the 8.2 GHz map; 0.094 mJy beam^-1 and 1.9 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f13a.ps,width=6cm}\psfig{figure=9722f13b.ps,w... ...ure=9722f13c.ps,width=6.cm}\psfig{figure=9722f13d.ps,width=6.cm} }\end{figure}$

Figure 13: Maps of the radio source 1056+39 at redshift z=2.171. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.143 mJy beam^-1 and 43 mJy beam^-1 for the 4.5 GHz map; 0.053 mJy beam^-1 and 15.7 mJy beam^-1 for the 8.2 GHz map; 0.074 mJy beam^-1 and 1.9 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f14a.ps,width=9.cm}\psfig{figure=9722f14b.ps,... ...ure=9722f14c.ps,width=9.cm}\psfig{figure=9722f14d.ps,width=9.cm} }\end{figure}$

Figure 14: Maps of the radio source 1132+37 at redshift z=2.88. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.22 mJy beam^-1 and 219 mJy beam^-1 for the 4.5 GHz map; 0.054 mJy beam^-1 and 117 mJy beam^-1 for the 8.2 GHz map; 0.074 mJy beam^-1 and 0.2 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f15a.ps,width=8.5cm,angle=-90}\psfig{figure=9... ...=9722f15c.eps,width=8.8cm}\psfig{figure=9722f15d.ps,width=8.8cm} }\end{figure}$

Figure 15: Maps of the radio source 1134+369 at redshift z=2.12. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.117 mJy beam^-1 and 30 mJy beam^-1 for the 4.5 GHz map; 0.052 mJy beam^-1 and 12 mJy beam^-1 for the 8.2 GHz map; 0.078 mJy beam^-1 and 1.7 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f16a.ps,angle=-90,width=9cm}\psfig{figure=972... ...gure=9722f16c.eps,width=9cm}\psfig{figure=9722f16d.ps,width=9cm} }\end{figure}$

Figure 16: Maps of the radio source 1202+527 at redshift z=2.73. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.42 mJy beam^-1 and 154 mJy beam^-1 for the 4.5 GHz map; 0.096 mJy beam^-1 and 134 mJy beam^-1 for the 8.2 GHz map; 0.090 mJy beam^-1 and 4.5 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f17a.ps,width=9.cm}\psfig{figure=9722f17b.ps... ...ure=9722f17c.ps,width=9.cm}\psfig{figure=9722f17d.ps,width=9.cm} }\end{figure}$

Figure 17: Maps of the radio source 1204+401 at redshift z=2.066. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.124 mJy beam^-1 and 22 mJy beam^-1 for the 4.5 GHz map; 0.062 mJy beam^-1 and 82 mJy beam^-1 for the 8.2 GHz map; 0.077 mJy beam^-1 and 1.4 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f18a.ps,width=7.cm}\psfig{figure=9722f18b.ps,... ...ure=9722f18c.ps,width=7.cm}\psfig{figure=9722f18d.ps,width=7.cm} }\end{figure}$

Figure 18: Maps of the radio source 1338-19 at redshift z=4.11. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.140 mJy beam^-1 and 21 mJy beam^-1 for the 4.5 GHz map; 0.074 mJy beam^-1 and 8 mJy beam^-1 for the 8.2 GHz map; 0.072 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f19a.ps,width=6.cm}\psfig{figure=9722f19b.ps,... ...gure=9722f19c.ps,width=6.cm}\psfig{figure=9722f19d.ps,width=6cm} }\end{figure}$

Figure 19: Maps of the radio source 1339+35 at redshift z=2.772. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.132 mJy beam^-1 and 12 mJy beam^-1 for the 4.5 GHz map; 0.084 mJy beam^-1 and 5.3 mJy beam^-1 for the 8.2 GHz map; 0.078 mJy beam^-1 and 0.6 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f20a.ps,height=9.5cm}\psfig{figure=9722f20b.p... ...9722f20c.ps,height=9.5cm}\psfig{figure=9722f20d.ps,height=9.5cm} }\end{figure}$

Figure 20: Maps of the radio source 1357+007 at redshift z=2.671. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.156 mJy beam^-1 and 18 mJy beam^-1 for the 4.5 GHz map; 0.052 mJy beam^-1 and 8.6 mJy beam^-1 for the 8.2 GHz map; 0.062 mJy beam^-1 and 0.3 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f21a.ps,width=9.cm}\psfig{figure=9722f21b.ps,... ...ure=9722f21c.ps,width=9.cm}\psfig{figure=9722f21d.ps,width=9.cm} }\end{figure}$

Figure 21: Maps of the radio source 1425-148 at redshift z=2.355. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.166 mJy beam^-1 and 50 mJy beam^-1 for the 4.5 GHz map; 0.071 mJy beam^-1 and 15 mJy beam^-1 for the 8.2 GHz map; 0.078 mJy beam^-1 and 8.6 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f22c.ps,height=10cm,angle=-90}\psfig{figure=9... ...=10cm,angle=-90}\psfig{figure=9722f22b.ps,height=10cm,angle=-90} }\end{figure}$

Figure 22: Maps of the radio source 1558-003 at redshift z=2.52. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.129 mJy beam^-1 and 40 mJy beam^-1 for the 4.5 GHz map; 0.047 mJy beam^-1 and 13 mJy beam^-1 for the 8.2 GHz map; 0.072 mJy beam^-1 and 4.6 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f23c.ps,height=9.5cm,angle=-90}\psfig{figure=... ...5cm,angle=-90}\psfig{figure=9722f23b.ps,height=9.5cm,angle=-90} } \end{figure}$

Figure 23: Maps of the radio source 1647+100 at redshift z=2.509. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.109 mJy beam^-1 and 24. mJy beam^-1 for the 4.5 GHz map; 0.042 mJy beam^-1 and 9.2 mJy beam^-1 for the 8.2 GHz map; 0.043 mJy beam^-1 and 1.7 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f24a.ps,width=9cm}\psfig{figure=9722f24b.ps,w... ...gure=9722f24c.ps,width=9cm}\psfig{figure=9722f24d.ps,width=9cm} } \end{figure}$

Figure 24: Maps of the radio source 1747+182 at redshift z=2.281. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.314 mJy beam^-1 and 162 mJy beam^-1 for the 4.5 GHz map; 0.055 mJy beam^-1 and 74 mJy beam^-1 for the 8.2 GHz map; 0.065 mJy beam^-1 and 20.4 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f25a.ps,height=11cm}\psfig{figure=9722f25b.ps... ...=9722f25c.ps,height=11cm}\psfig{figure=9722f25d.ps,height=11cm} } \end{figure}$

Figure 25: Maps of the radio source 1908+722 at redshift z=3.537. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.148 mJy beam^-1 and 16 mJy beam^-1 for the 4.5 GHz map; 0.087 mJy beam^-1 and 4.5 mJy beam^-1 for the 8.2 GHz map; 0.086 mJy beam^-1 and 1.2 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f26a.ps,width=9cm}\psfig{figure=9722f26b.ps,w... ...gure=9722f26c.ps,width=9cm}\psfig{figure=9722f26d.ps,width=9cm} } \end{figure}$

Figure 26: Maps of the radio source 2034+027 at redshift z=2.129. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.113 mJy beam^-1 and 31 mJy beam^-1 for the 4.5 GHz map; 0.053 mJy beam^-1 and 12 mJy beam^-1 for the 8.2 GHz map; 0.058 mJy beam^-1 and 0.8 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f27a.ps,width=9.cm}\psfig{figure=9722f27b.ps... ...gure=9722f27c.ps,width=9cm}\psfig{figure=9722f27d.ps,width=9cm} } \end{figure}$

Figure 27: Maps of the radio source 2048-272 at redshift z=2.06. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.200 mJy beam^-1 and 50 mJy beam^-1 for the 4.5 GHz map; 0.079 mJy beam^-1 and 18 mJy beam^-1 for the 8.2 GHz map; 0.108 mJy beam^-1 and 4.1 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f28a.ps,width=5.5cm,angle=-90} } { \psfig{fig... ...,angle=-90} } { \psfig{figure=9722f28d.ps,width=6.1cm,angle=-90} }\end{figure}$

Figure 28: Maps of the radio source 2052-253 at redshift z=2.63. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.188 mJy beam^-1 and 11.8 mJy beam^-1 for the 4.5 GHz map; 0.088 mJy beam^-1 and 5.1 mJy beam^-1 for the 8. 2 GHz map; 0.102 mJy beam^-1 and 0.8 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f29a.ps,width=5cm}\psfig{figure=9722f29b.ps,w... ...gure=9722f29c.ps,width=5cm}\psfig{figure=9722f29d.ps,width=5cm} } \end{figure}$

Figure 29: Maps of the radio source 2104-242 at redshift z=2.49. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.162 mJy beam^-1 and 21.8 mJy beam^-1 for the 4.5 GHz map; 0.054 mJy beam^-1 and 6.5 mJy beam^-1 for the 8.2 GHz map; 0.062 mJy beam^-1 and 3.5 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f30a.ps,width=9cm}\psfig{figure=9722f30b.ps,w... ...gure=9722f30c.ps,width=9cm}\psfig{figure=9722f30d.ps,width=9cm} } \end{figure}$

Figure 30: Maps of the radio source 2211-251 at redshift z=2.508. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.362 mJy beam^-1 and 190 mJy beam^-1 for the 4.5 GHz map; 0.071 mJy beam^-1 and 92 mJy beam^-1 for the 8.2 GHz map; 0.089 mJy beam^-1 and 1.1 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f31a.ps,width=8cm}\psfig{figure=9722f31b.ps,w... ...gure=9722f31c.ps,width=8cm}\psfig{figure=9722f31d.ps,width=8cm} } \end{figure}$

Figure 31: Maps of the radio source 2224-273 at redshift z=1.68. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.168 mJy beam^-1 and 162 mJy beam^-1 for the 4.5 GHz map; 0.068 mJy beam^-1 and 45.9 mJy beam^-1 for the 8.2 GHz map; 0.105 mJy beam^-1 for the 4.7 GHz polarized intensity map

$\begin{figure} { \psfig{figure=9722f32a.ps,width=7.cm}\psfig{figure=9722f32b.ps,... ...e=9722f32c.ps,width=7.cm}\psfig{figure=9722f32d.ps,width=7.2cm} } \end{figure}$

Figure 32: Maps of the radio source 2319+223 at redshift z=2.554. The sequence of figures is the same as in Fig. 6. The first contour level and the peak surface brightness are respectively 0.122 mJy beam^-1 and 32 mJy beam^-1 for the 4.5 GHz map; 0.058 mJy beam^-1 and 12.1 mJy beam^-1 for the 8.2 GHz map; 0.059 mJy beam^-1 and 2.9 mJy beam^-1 for the 4.7 GHz polarized intensity map

Figures 6-32