[evlatests] phase jumps at scan boundaries
Eric Chavez
echavez at nrao.edu
Tue Mar 20 12:57:13 EDT 2012
LO/IF will install some cabling to prevent this on maintenance day.
Eric
Bryan Butler wrote:
> josh also reported phase jumps on the same antennas & IFs at scan
> boundaries at C-band on 12 march. from his JIRA ticket:
>
> Summary: ea04, ea09 AC, ea02 BD.
>
> so, looks like this is consistent. is this written up into a mainsaver
> ticket? the engineers should go out and have a look.
>
> -bryan
>
>
> Emmanuel Momjian wrote, On 3/20/12 10:42 AM:
>> The following antennas and IF pairs are showing phase jumps at scan
>> boundaries (as seen in L-band and C-band data taken on March 13):
>>
>> Antenna ea02 IFs BD
>> Antenna ea04 IFs AC
>> Antenna ea09 IFs AC
>>
>>
>> Emmanuel
>>
>>
>>
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