[evlatests] EA 16 intermittent FRM rotation errors

Vivek Dhawan vdhawan at nrao.edu
Mon Oct 27 14:44:28 EDT 2008


EA 16 gives good fringes (50% nominal) at X band on 25 October.
But only a few % nominal on 27 Oct at L band. Just now, I watched
the FRM during operation, it seems to have intermittent errors.


Emmanuel Momjian wrote:
> The latest stress test (October 23) showed wrongly flagged data on three 
> EVLA antennas (1, 16, and 24) and at various bands and IFs. These were:
> 
> EVLA  1: L-band (all IFs), C- and X-bands (IFs B & D)
> EVLA 16: C-band (IF A)
> EVLA 24: L-band (IFs A & D), C- and X-bands (IF D)
> 
> When the data were loaded without the online flagging, all the above 
> showed good data and resulted in good solutions.
> 
> Emmanuel
> 
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