[daip] DBCON

[Eric Greisen]

larry at astro.umn.edu writes:
 > Dear AIPSers:
 > 
 > We have a Pband data set taken in jan '01 that was a single
 > observe file, but filled for reasons unclear into two
 > data sets.  When we try to dbcon them, we get the message
 > 'scaling u,v,w, ... by .995'..etc.for set 1 and
 > then same message for set 2.  
 > 
 > i looked in the code for dbcon, couldn't figure out what
 > this correction is for.  and there's some ???? in the source
 > code as well. (31DEC02, latest MNJ)
 > 
 > true for DOPOS=1 or DOPOS=0.  true for 4band as well as
 > P.  
 > 

I would not worry about it.  If you really want to know, when
confronted by a line data set, DBCON rescales the ref frequency to
channel 1.  I suspect that the input header will show a ref channel
other than 1.

Eric Greisen