[daip] BL149BE: PCOR problems

[Leonia Kogan]

Yura,

I may know the explanation of your problem, if you find that the number 
of tones at the PC table is one
(look at the header of the PC table).
Let me know please if it is true.
The number of counter (pulse cal detectors) used for creation of the 
pulse cals is limited
by 16. If you have 8 IFs and both polarizations, then the number of 
required counter is
8*2pol*2tones=32 > 16. SCHED, looking at this inequality, changes the 
number of tones to 1.
I asked Craig Walker recently to change SCHED reporting user about the 
problem recommending user to
decrease number of IFs for example. Your data were prepared before 
possible Craig's change of SCHED (?).

S Novim Godom!

LK
Yuri Y. Kovalev wrote:
> Dear colleagues,
>
> I continue to have fun reducing 512 Mbps VLBA experiment BL149BE.
> This time I write you about phase calibration procedure vlbapcor.
>
> Here are parameters I use:
> AIPS 1: VLBAPCOR: Procedure to correct instrumental phases
> AIPS 1: Adverbs     Values                 Comments
> AIPS 1: ----------------------------------------------------------------
> AIPS 1: INNAME     'BL149BE'               Input UV file name (name)
> AIPS 1: INCLASS    'UVDATA'                Input UV file name (class)
> AIPS 1: INSEQ         1                    Input UV file name (seq. #)
> AIPS 1: INDISK        1                    Input UV file disk unit #
> AIPS 1: TIMERANG      0          12        Time range of a calibrator
> AIPS 1:              55          43         1-4 = start day,hr,min,sec
> AIPS 1:               0          13         5-8 = end   day,hr,min,sec
> AIPS 1:               0          23        MUST BE SPECIFIED
> AIPS 1: REFANT        5                    Ref. antenna, 0=>the first
> AIPS 1: SUBARRAY      0                    Subarray;  0 => all.
> AIPS 1: CALSOUR    *all ' '                Calibrator source name;
> AIPS 1:                                    blank => any
> AIPS 1: GAINUSE       0                    CL table to use; 0=>highest
> AIPS 1:                                    ADVERBS FOR ANTENNAS NOT
> AIPS 1:                                    CONTAINED IN PC TABLE:
> AIPS 1: INVER         0                    Input  PC table, 0=>last one
> AIPS 1: OPCODE     ' '                     'CALP' if you are missing PC
> AIPS 1:                                    information for any antenna;
> AIPS 1:                                    otherwise ' '
> AIPS 1: ANTENNAS   *all 0                  antennas for which manual
>
> It does not work reporting:
> *****
> PCCOR1: All rows of the PC table are bad for the selected parameters
> PCCOR1: Purports to die of UNNATURAL causes
> *****
>
> I tried MPIfR installed AIPS 31DEC07, 31DEC08, 31DEC09 with the same 
> result.
> I tried PC table which I got from the correlator AIPS friendly files 
> (after gluing) and I also tried "external" PC table from bl149becal.vlba 
> using VLOG & PCLOD. Result did not change.
>
> I wonder if you could take a look at it? Thank you.
>
> I remember that Matt had some problem applying PC table to the previous 
> MOJAVE VLBA 512 Mbps data (BL149BD), but I am not sure if it was the 
> same problem or something else. Matt?
>
> Cheers,
> Yuri.
>
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