[evlatests] Update on Positions; Phase stability; RTP on EA14.

[Doug Gerrard]

	No work has been done to the fiber in the last several months, other 
than normal moves and/or any module swap outs.

Doug

Vivek Dhawan wrote:
> 1. EA 14, 16, and 24 moved last week. Two baseline runs were
>     done on Saturday, and positions could be found for all EVLA
>     antennas including 17.
> 
> 2. Residual phase changes with elevation are +_1 radian on
>     the older antennas 13,14,16, and even less on the newer
>     23, 24, 26, 17. (All at X band)
> 
> 3. L352 round-trip meters appear to exist at 13,14,18 and two
>     more unidentified antennas.
> 
>     mib-1-22 was working, but I  dont know on which antenna.
>     mib-0-52 was logging at once/min instead of once/10s, and
>              its reading was unchanging.
> 
>     The meter on EA14 now changes its response by 5 ps as the
>     elevation changes on that antenna, and seems to know when
>     the antenna goes over the top (EL >90). It is the only meter
>     doing this, it is a new phenomenon, and I noticed it first on
>     January 10th, i.e. it started before EA14 was moved.
>     From the monitor data archive, it was present Dec 6th. (I do
>     not have this monitor point in Oct-Nov). Was the fiber on
>     EA 14 'fixed' in some way before Dec 6th?
>     I don't know if the meter is telling the truth, but it seems
>     to show the diurnal temperature trend correctly.
> 
> Vivek.
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