[evlatests] phase jumps on ea02 B2D2

[Rick Perley]

    all bands?  some bands?  Only a 3-bit issue? 

Claire Chandler wrote:
> ea02 B2D2 is still showing phase jumps in data from this week.  Does 
> anyone know what could be causing this?
>
> Claire
>
> On Wed, 27 Feb 2013, Vivek Dhawan wrote:
>
>   
>> Hi Jerry,
>>
>> Phase jumps are still happening, after the cable fix.
>>
>> We are planning a '3-bit sampler therapy session' tomorrow and we will
>> look at this more - perhaps i have mis-diagnosed it.
>>
>>
>> Jerry Langevin wrote:
>>     
>>> A cable was removed from Ant-02 L302-4.
>>>
>>> This should fix the problem.
>>>
>>> Jerry
>>> VLA LOIF
>>>
>>> Vivek Dhawan wrote:
>>>       
>>>> Yes,it looks like the jumper cable needs adding/removing from ea02,
>>>> L302-4.
>>>>
>>>> p.s. antena 2 was out yesterday for FRM troubles.
>>>>
>>>>
>>>> Claire Chandler wrote:
>>>>         
>>>>> In recent 3-bit data we are seeing phase jumps on scan changes on
>>>>> ea02, B2D2.  The phase jumps are the same for R and L polarizations,
>>>>> and seem to have multiple, well-defined, phase states.  Is this the
>>>>> symptom that is fixed by the jumper cables?
>>>>>
>>>>> Claire
>>>>> _______________________________________________
>>>>>           
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>>
>>     
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