[evlatests] Phased VLA all fringy.

Vivek Dhawan vdhawan at nrao.edu
Fri Sep 6 09:58:15 EDT 2013



Hi Walter - Ken is on vacation. If you are sure PT is not off,
then I can do some backtracking, I did keep notes on when we
changed the PPS delay.

On Thu, September 5, 2013 22:09, Walter Brisken wrote:
|
| Hi Ken,
|
| Any way to confirm this and to allow anticipation of this in the future?
|
|  	-Walter
|
| On Thu, 5 Sep 2013, Ken Sowinski wrote:
|
|>>
|>> Surprise! ty040 = Sept 4th fringe check, worked, even after all the
|>> update activity on both arrays.
|>>
|>> A couple of wrinkles, both minor. Walter, ignore them if you are busy.
|>>
|>> difx 2.2 worked fine. difx-devel died (I tried it first, not sure
|>> if I needed the development or now-standard version) If you care
|>> about it we can try to re-run what I did.
|>>
|>> Y27 is now -16us from PT. The Y GPS shows no such drift since we last
|>> observed. Can PT be +16us off (I'm not sure the jobs I make get the
|>> clock offset and drift that standard production jobs automatically get
|>> applied ?) I guess I could dig thru the inputs, but I'm getting tired.
|>
|> The 16 usec might be the change in PPSdelay that we made to accommodate
|> the subband delay module.
|>
|>
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|





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