[evlatests] Antenna 26

[Bryan Butler]

chunai will add antenna 26 to the flagger list.


On 10/25/06 12:31, Barry Clark wrote:
> 1.  The RF detector in t304-c is broken.  It reads +40 or so.  This 
> causes the MIB to set maximum attenuation in the RF attenuator, which
> takes things down enough that the output attenuator can't bring it back
> up.  Was fiddled by hand for the following tests below.
> 
> 2.  L band.  Delays set.  Seems OK on the face of things, though 
> BD much weaker fringes than AC.
> 
> 3.  K band.  Lots of problems:
> a.  On initial startup, no fringes on BD.  Set the L302 to a different
> frequency and brought it back.  Then we got fringes.
> b.  There is no switched power.  Told the Modcomps to not apply Tsys.
> c.  Reasonable fringes on IFs A and B.  Very weak fringes on C and D.  
> Somewhat stonger fringes on IFs CA and DB than on CC and DD.  Some sort
> of wiring error at RF.  Crossed hand fringes are not strong enough that
> it is a simple matter of AB being sent to both sides, so not quite clear
> what the error is.
> 
> Delays set for IFs A and B.  Focus set.
> 
> No collimations done at any band.
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