[evlatests] Phase Hopping Antennas

[Bryan Butler]

this matches with claire seeing them on 7, 13, and 22.

	-bryan


Rick Perley wrote, On 8/2/11 15:02 PM:
>      It has been recently reported that some antennas are hopping phase
> upon change of source (and not necessarily when the band is changed).
>
>      The 'switch stress test' provides an opportunity to look for this.
> To remove atmospheric effects, I differenced the phases from IFs 1 and
> 2, for each of RCP and LCP.  The results are quite striking:
>
>      There are three antennas which display frequent bad hopping.
>
>      1) Antenna 22 at all bands.
>      2) Antenna 13 at all bands *except* X and K.
>      3) Antenna 12 at all bands *except* X
>
>      In addition, antenna 7 hops at most bands, but only did so on one or
> two scans.
>      Antenna 9 and 11 also showed an occasional hop.
>
>
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