  We present polarization data for 32 mainly southern pulsars at 8.4 GHz. The
observations show that the polarization fraction is low in most pulsars at this
frequency except for the young, energetic pulsars which continue to show
polarization fractions in excess of 60 per cent. All the pulsars in the sample
show evidence for conal emission with only one third also showing core
emission. Many profiles are asymmetric, with either the leading or the trailing
part of cone not detectable. Somewhat surprisingly, the asymmetric profiles
tend to be more polarized than the symmetrical profiles. Little or no pulse
narrowing is seen between 1 and 8.4 GHz. The spectral behaviour of the
orthogonal polarization modes and radius to frequency mapping can likely
account for much of the observational phenomenology. Highly polarized
components may orginate from higher in the magnetosphere than unpolarized
components.
