[evlatests] [Vlite-external] Antenna ea1=V5 problems

[Bryan Butler]

Doug Scott wrote, On 8/22/14 16:20 :
> Good afternoon,
> As one of the techs who swapped out the L305 here, I'd like to request a
> little direction on how to minimize any impact on VLITE modules.
>
> 1. Of the many modules we (LO/IF) affect in the antenna vertex room,
> when are we to request our VLITE expert to check things out?

only if you think it affects the D306.  i realize you may not know, and 
these are early days for these modules, so i think it's going to take a 
bit of time to get experience with them before we really know.


> 2. Should the VLITE expert (Mike R.) be unavailable, who might be
> filling in?

kerry shores is the backup, as far as i know.


> 3. Is there an antenna overlay screen in the works for VLITE?

no.  we have only mike's module status screen (through which you can get 
at least a bandpass), and nothing else.  and i think that's going to 
have to be it.  remember that this is a best effort basis.


>
> Thanks,
> Doug
>
> On 8/20/2014 10:27 AM, Tracy Clarke (Foreign National) wrote:
>> OK, thanks. The most recent data I have from the VLITE system was
>> taken at just before 5 am MDT today (8/20) and at that
>> point ea1 was still not correlating with the others.
>>
>> Cheers,
>>
>> Tracy
>>
>>
>> Tracy Clarke
>> ------------------------------------------------
>> Research Astronomer
>> Remote Sensing Division
>> Naval Research Laboratory
>> 4555 Overlook Ave SW
>> Washington, DC 20375
>> tracy.clarke.ca at nrl.navy.mil
>> (tel) 202-404-4297
>> (fax) 202-404-8894
>> ------------------------------------------------
>>
>>
>>
>> On Aug 20, 2014, at 9:42 AM, jjackson <jjackson at nrao.edu> wrote:
>>
>>> Looks like Mike and I answered at the same time.  The L305 install
>>> was the work that was done on the antenna yesterday.  Mike will get
>>> it sorted out (if it isn't already).
>>>
>>> Cheers,
>>> Jim
>>>
>>> On 8/20/2014 9:37 AM, jjackson wrote:
>>>> Antenna 1 got an updated L305 installed yesterday so it now has the
>>>> 20Hz
>>>> timing instead of 19.2 Hz. It also had its clock & timing interrupted
>>>> during that change.
>>>>
>>>> It's likely the VLITE module needs to be restarted. The tech's know to
>>>> restart the Synthesizers & DTS modules but probably did not do anything
>>>> to the VLITE module.
>>>>
>>>> Cheers,
>>>> Jim
>>>>
>>>>
>>>> On 8/19/2014 10:16 PM, Tracy Clarke (Foreign National) wrote:
>>>>> Hi All,
>>>>>
>>>>> I have seen that antenna ea1=V5 is not correlating at the moment
>>>>> (21:00 MDT). This happened sometime recently. Looking at the data it
>>>>> was OK
>>>>> on 08/19 at 02:10 UTC and not correlating at 22:00 UTC 08/19 onward. I
>>>>> have not looked exactly when it stopped but since it is a double
>>>>> maintenance day
>>>>> I wonder if it is left in an odd state?
>>>>>
>>>>> Cheers,
>>>>>
>>>>> Tracy
>>>>>
>>>>> Tracy Clarke
>>>>> ------------------------------------------------
>>>>> Research Astronomer
>>>>> Remote Sensing Division
>>>>> Naval Research Laboratory
>>>>> 4555 Overlook Ave SW
>>>>> Washington, DC 20375
>>>>> tracy.clarke.ca at nrl.navy.mil
>>>>> (tel) 202-404-4297
>>>>> (fax) 202-404-8894
>>>>> ------------------------------------------------
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Vlite-external mailing list
>>>>> Vlite-external at listmgr.nrao.edu
>>>>> https://listmgr.nrao.edu/mailman/listinfo/vlite-external
>>>>>
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>>
>>
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