[evlatests] 4-band status

[Rick Perley]

    I got some good data last night to check 4-band performance. 

    Antennas giving no fringes at all are:

    1 -- IF B
    5 -- IFs B and D
    8 -- all IFs
    16 -- all IFs
    25 -- IFs B and D

    Antennas whose polarization are reversed:

    1, 25, 26, and 28. 

    Antennas with a broken or non-connected dipole (so that the 
correlations are equal in all four products):

    2, 14, and 17. 

    Antenna which I can't quite figure out:
   
    24  -- the sensitivity is very low, but this doesn't seem to be due 
to polarization issues. 

    All other antennas are working well, and at correct sensitivity. 

    Rick