[evlatests] correlator fault?

Ray Ferraro rferraro at nrao.edu
Thu Aug 2 18:15:30 EDT 2007


Claire,
	There was a problem with the sampler for Ant. 5, IFA (IF1, RCP) that 
was resolved last Wed. However, it should have affected all baselines 
derived with this antenna, IF. Could you report what IFs this is 
occurring in for each observing mode this has been observed in. Thanks.
			Ray Ferraro

Claire Chandler wrote:
> I have seen a bi-stable phase state, with phases flipping 180 degrees on 
> alternate integrations, on baseline 5-23.  It occurs in multiple datasets 
> recently, at all frequency bands.  I think it must be a correlator 
> problem.
> 
> Claire
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