[evlatests] L-band performance

[Deb Shepherd]

Rick,

I assume that the correlator with the CBE work-around did not crash when
the script was run - true?  Were any correlator problems seen during the
run?

Thanks,
Deb


On Mon, Jan 9, 2012 at 3:26 PM, Rick Perley <rperley at nrao.edu> wrote:

>    As part of debugging the tendency for my scripts to collapse the
> correlator, another 'flux density' test script was run today.   This
> script includes L-band, so I took a careful look at the data, given
> Chuck's report this morning of some serious issues with the L-band
> receivers.
>    The situation isn't nearly as dire as Chuck's report seemed to indicate:
>
>    1) Antennas 11, 17, and 19 were out of the array.
>    2) ea18 gives essentially no fringe power at any of the four subbands.
>    3) ea26 is similarly weak, on RCP only.
>    4) ea23 is also very weak, on LCP only.
>    5) ea13's fringes are down by about half in RCP.
>    6 Three other antennas give weaker-than-expected fringes on single
> IFs:  ea07A, ea04A, and ea15C.  However, these might perhaps be low
> power levels specific to a single IF.
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-- 
Debra Shepherd <dshepher at nrao.edu>
National Radio Astronomy Observatory
1003 Lopezville Rd
Socorro, New Mexico 87801
http://www.aoc.nrao.edu/~dshepher
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