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Fig. 18

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Observations of PSR B0950+08 made using the LBAs (left) and HBAs (right). The top panels show sections of the timeseries after dedispersion to the pulsar DM of 2.96 pc cm-3. We easily detect single pulses and one can see the wide range in intensity of the pulses, in particular in the low band. In the lower panels the same timeseries are shown but without dedipsersion, the so-called DM zero timeseries. In both the LBAs and HBAs we can see evidence for narrow spikes of RFI at zero DM, however these are clearly broadband in nature and have been completely dispersed beyond a detectable level at the dispersion measure of the pulsar. We note that the broad features seen in the DM zero timeseries of the HBAs (e.g. near 2.5 s in the lower-right panel) are due to the pulsar itself. The ordinate axes corresponds to an arbitrary amplitude but is preserved in the top and bottom plots.

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