[evlatests] X-band Observations from last evening
James Robnett
jrobnett at nrao.edu
Wed Jul 29 10:05:23 EDT 2009
This sounds like a different beast. The dropped alert/clear
alerts from the ACU's would affect a wide swath of antennas
and change state (clear or occur) on source change.
I didn't get the original report but it sounds like 18 and 24
were the only ones with a problem and the problem persisted through
a source change. Is this the case ?
I made a change Friday that I *think* will correct the dropped
alerts problem but I won't really know until we've gone some time
without them, the problem was fairly intermittent.
Since Friday I've received no reports of dropped alerts or clear
alerts from the ACU. I don't know if that means the problem is fixed
or simply means I've received no reports.
There was a confusing issue L302-1 'm_lock' alerts Sunday night
on 4 antennas around 21:23 MDT but it's not clear it was related
to the original problem.
James
Bryan Butler wrote:
>
> if these were mis-pointed and not flagged, this might be another
> indication of missed packets. james thought he had fixed this as of the
> weekend (i believe that's the timing).
>
> -bryan
>
>
> Ken Sowinski wrote, On 7/28/09 18:00:
>> On Tue, 28 Jul 2009, Rick Perley wrote:
>>
>>> Antennas 18 and 24 'dropped out' for significant lengths of time
>>> (particularly ea18) -- these do not appear to be weather related. I
>>> have no explanation for this.
>>
>> They were both having ACU problem and not pointing reliably.
>>
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