[evlatests] C-K test results from yesterday evening ...

Michael Rupen mrupen at nrao.edu
Fri Jul 2 12:23:58 EDT 2010


> On Fri, 2 Jul 2010, Rick Perley wrote:
>
>>    A) Integer Zeros:  FITLD reported 1.1 and 2.4 %, at C and K band
>> respectively.  Most of these are very curiously distributed -- 13
>> seconds *before* the end of each 3-minute block, many antennas were
>> 'blank', if all IFs, for a single record.  Thereafter, to the end of the
>> block, the RCP correlations were all present, but many of the LCP were
>> integer zeros.
>
> If, as I expect, there are no correlator configurations after
> the initial scan, then this is trying hard to tell us something.


There were no correlator configuration changes in the entire run.

We have NOT seen this behavior in previous runs of the same file.
Of course we're running a new version of the CBE...

          Michael



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