[daip] problems with RLDLY

[Lister, Matthew L]

I see that in the new version of AIPS CRSFRING has been replaced with RLDLY. I am not able to get this
task to correct the phases across the IFs in BL149CZ. The task corrects the slope within the IF, but does not
correct for the phase offsets _between_ IFs.  This is a VLBA dataset with identical parameters to previous BL149 
segments that have been reduced successfully with CRSFRING.  

Plots can be found at
http://www.physics.purdue.edu/~mlister/LLPLOT.PS
http://www.physics.purdue.edu/~mlister/LRPLOT.PS
http://www.physics.purdue.edu/~mlister/LRPLOT_PRE_RLDLY.PS
The first is the parallel hand POSSM plot pre RLDLY, and the 2nd is the cross hand plot post-RLDLY, 3rd is
the cross hand before RLDLY was run. 

Here are the inputs I am using for RLDLY:


AIPS 1: RLDLY:  Task to fringe fit data for R-L delay difference
AIPS 1: Adverbs     Values                 Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1:                                    Input uv data.
AIPS 1: INNAME     'BL149CZ'                  UV file name (name)
AIPS 1: INCLASS    'UVDATA'                   UV file name (class)
AIPS 1: INSEQ         1                       UV file name (seq. #)
AIPS 1: INDISK        1                       UV file disk drive #
AIPS 1:                                    Data selection (multisource):
AIPS 1: CALSOUR    *all ' '                Calibrator sources
AIPS 1: QUAL         -1                    Calibrator qualifier -1=>all
AIPS 1: CALCODE    ' '                     Calibrator code '    '=>all
AIPS 1: SELBAND      -1                    Bandwidth to select (kHz)
AIPS 1: SELFREQ      -1                    Frequency to select (MHz)
AIPS 1: FREQID       -1                    Freq. ID to select.
AIPS 1: TIMERANG      0          23        Time range to use.
AIPS 1:              42          51           0          23
AIPS 1:              46          27
AIPS 1: BCHAN         0                    Lowest channel number 0=>all
AIPS 1: ECHAN         0                    Highest channel number
AIPS 1: CHINC         1                    Spectral channel increment
AIPS 1:                                    (data are averaged)
AIPS 1: ANTENNAS   *all 0                  Antennas to select. 0=all
AIPS 1: SUBARRAY      0                    Subarray, 0=>all
AIPS 1: UVRANGE       0           0        Range of uv distance for full
AIPS 1:                                    weight
AIPS 1: WTUV          0                    Weight outside UVRANGE 0=0.
AIPS 1: WEIGHTIT      0                    Modify data weights function
AIPS 1:
AIPS 1:                                    Cal. info for input:
AIPS 1: DOCALIB       1                    > 0 calibrate data & weights
AIPS 1:                                    > 99 do NOT calibrate weights
AIPS 1: GAINUSE       7                    CL table to apply.
AIPS 1: DOPOL        -1                    If >0 correct polarization.
AIPS 1: ** press RETURN for more, enter Q or next line to quit print **
#
AIPS 1: PDVER         0                    PD table to apply (DOPOL>0)
AIPS 1: BLVER        -1                    BL table to apply.
AIPS 1: FLAGVER       1                    Flag table version
AIPS 1: DOBAND       -1                    If >0 apply bandpass cal.
AIPS 1:                                    Method used depends on value
AIPS 1:                                    of DOBAND (see HELP file).
AIPS 1: BPVER        -1                    Bandpass table version
AIPS 1: SMOOTH     *all 0                  Smoothing function. See
AIPS 1:                                    HELP SMOOTH for details.
AIPS 1:
AIPS 1:                                    Solution control adverbs:
AIPS 1: REFANT        2                    Reference antenna REQUIRED
AIPS 1: SOLINT        0                    Data integration time (sec)
AIPS 1:                                       0 => found in data
AIPS 1: DOIFS         0                    0 => solve all IFs separately
AIPS 1:                                    1 => 1 solution for all IFs
AIPS 1:                                    2 => 2 solutions, a each for
AIPS 1:                                         IFs by halves
AIPS 1: BADDISK    *all 0                  Disk no. not to use for
AIPS 1:                                       scratch files.