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The plot above represents the first fully calibrated results from
National Facility scheduled observing time with the
Ultra-Wideband Low (UWL) receiver at Parkes. The observations were
made last week, on Monday night, Nov 12, Australian time. The plot
shows the polarization profile of the Double-Pulsar MSP (PSR
J0737-3039A), integrated over the entire UWL band (704 – 4032 MHz)
(less channel zapping for RFI and anti-aliasing) and over the 2.5h
observation. The details of the polarization variations across the
pulse agree well with previous observations using the 20cm MB and
10/50cm receivers. The team have also shown that the pulse timing is
correct, at least to within a micro-second or two. While these
results show that the UWL system is performing well, much work remains
to fully commission other observing modes, to improve some aspects of
the signal processing (including RFI adaptive filtering) and to fully
commission the new Parkes Telescope Operating System.
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