[daip] DFTPL bug ?

[Eric Greisen]

 > I am running the 2004 version of AIPS (updated last in
 > Oct 2004). I was running DFTPL on line data and find
 > almost no change in the plot when I change BCHAN,
 > ECHAN (and also CHANNEL which is marked in the help
 > files as an adverb but not in the 'inp dftpl'). I
 > suppose there is a bug which makes the program ignore
 > the values of the channel(s) for which I would like to
 > plot DFTPL. Could you please let me know if there is a
 > problem ?

It averages the data over a time range and over channels BCHAN to
ECHAN and IFs BIF to EIF.  Modest changes to BCHAN and ECHAN should
produce little change.  I looked at the code and there is no reason to
suspect it of error.

Eric Greisen