[evlatests] phase jumps on ea02 B2D2

[Claire Chandler]

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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