[evlatests] VLA switch to Rubidium

[Ken Kellermann]

I think Barry is right.  I thought about this after the VLBA discussion this afternoon.  Y27 is used only for the most sensitive observations.  Even at C band long integrations needed for sensitivity will not be feasible, and the same probably applies to L band.  Also astrometry would be compromised.  It would be a waste of the VLA to use it for VLBI with only a Rb lo.  As I understood there will be a replacement in 2 to 3 weeks, so it would not make much sense to observe with a Rb based lo.

> -----Original Message-----
> From: evlatests-bounces at nrao.edu [mailto:evlatests-bounces at nrao.edu] On Behalf Of
> Barry G. Clark
> Sent: Tuesday, April 16, 2013 10:06 PM
> To: Terry Cotter
> Cc: evlatests at aoc.nrao.edu
> Subject: Re: [evlatests] VLA switch to Rubidium
> 
> This kills VLBI Y27 at the VLA.
> 
> > Hi All
> >
> > 	We are having Maser problems at the Mauna Kea VLBA site. We will be
> > switching the VLA to Rubidium tomorrow by the end of the day. The VLA
> > will be without a Maser until further notice. The maser at the VLA
> > will
> > be shipped to North Liberty and the maser at North Liberty will be
> > shipped to Mauna Kea.
> >
> > Terry
> > _______________________________________________
> > evlatests mailing list
> > evlatests at listmgr.cv.nrao.edu
> > http://listmgr.cv.nrao.edu/mailman/listinfo/evlatests
> >
> 
> 
> _______________________________________________
> evlatests mailing list
> evlatests at listmgr.cv.nrao.edu
> http://listmgr.cv.nrao.edu/mailman/listinfo/evlatests