[daip] Combine UV data back into IF axis

Doug Roberts droberts.archive at gmail.com
Thu Nov 6 13:27:29 EST 2014


Perfect Eric!  Just what I needed.

Thanks,
Doug

On 11/6/2014 9:43 AM, Eric Greisen wrote:
> On 11/05/2014 06:34 PM, Doug Roberts wrote:
>> Hi Eric,
>>
>> For several reasons, I need to add more IFs in a dataset. Primarily to
>> do selfcal on lower BW IFs rather than fat IFs where averaging
>> introduces errors.  It looks like AIPS has an upper limit of 90 IFs.  So
>> I used UVCOP to separate every 8 IFs out and then used MORIF to resample
>> the IF axis from 8 to 64.  My data had initially 52 IFs and now I have
>> 6.5 uvdatasets each with 64 IFs. I've resampled the 64 IFs down to a
>> single if using NOIF.  Now I have 6.5 files each with one IF. How can I
>> combine them back into an IF axis?  When I try to use DBCON is fails
>> saying the frequences are too far apart.
>>
>> Thanks,
>> Doug
>
>
> VBGLU
>
> Eric Greisen
>



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