[evlatests] Last Stress Test for the year
Charles Kutz
ckutz at nrao.edu
Wed Jan 2 09:55:40 EST 2008
VLA antenna 8 has an F3 module not locking at some frequency settings
and will be fixed as soon as possible. WO C121971
Antenna 13 P-Band still has the very strong signal at ~ 330 MHz, of
unknown origin, we are still trying to ascertain what is causing it.
WO C121726
Chuck
Rick Perley wrote:
> A few minutes were used checking system performance at the end of
> this day (and of this year).
>
> No great care has been taken to review these data -- only the key
> points. I looked only at unflagged data, so can't tell if
> antennas/IF/bands reported as flagged are actually broken.
>
> Performance is in general very good. The phase jumps and
> 'shredded' levels reported last year have been repaired.
>
> Q-Band: Antenna 18 is fringing fine. But VLA antenna 8 is not, and
> was not flagged. 14D was flagged, but the other IFs were not, and
> looked fine.
>
> Antenna 13 still has no fringes (and is not flagged) at P-band. At
> this band, antennas 23 and 25 are flagged in RCP, antennas 25 and 26 in
> LCP. Antenna 1 was flagged.
>
> Only trivial issues to report at L, C, and X bands.
>
> I didn't look at K-band.
>
>
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