Flux density measurements provide fundamental observational parameters that
describe a pulsar. In the current pulsar catalogue, 27% of radio pulsars have
no flux density measurement in the 20 cm observing band. Here, we present the
first measurements of the flux densities in this band for 32 pulsars observed
using the Parkes radio telescope and provide updated pulse profiles for these
pulsars. We have used both archival and new observations to make these
measurements. Various schemes exist for measuring flux densities. We show how
the flux densities measured vary between these methods and how the presence of
radio-frequency-interference will bias flux density measurementsComment: Accepted by RA