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There is a program available on arthur called display which provides
some online assessment of the data being recorded by the search digitiser.
It is invoked by simply typing display on arthur while the search
software is recording data. Three of the more useful commands are:
- fft: does an online fft, showing up any strong low DM pulsars and any
interfering signals which may include the mains power at 50 and 100 Hz and
- stats: shows the levels on the filter bank channels averaged over
time. If everything is working well, the mean should be around 0.5. Note
that the first channel does not record data and will often have a lower
- time: shows the mean, min, max and rms signal levels as a
function of time.
Sun Aug 17 17:32:08 BST 1997