[evlatests] ea05 mis- tuning at C and X bands?

[Rick Perley]

     Two tests have been run utilizing C and X bands where ea05 is 
failing to fringe in a manner which is strongly suggesting of a failure 
to tune properly.   In this test, I cycle around five bands (P, L, S, C, 
and X).

     Characteristics are:

     1) At X-band, the AC side provides no fringes on any scan except 
the first.  The BD side fringes properly.  Examination of the switched 
power shows that everything is normal.

     2) At C-band, the BD side provided no fringes on approximately half 
of the scans.  The AC side fringes properly.  Again, the switched power 
is normal throughout.

     I looked for correlations between failures to fringe and the 
preceding tuning -- none is apparent.

     The C-band tunings were at 4700 and 6500 MHz (center of the 1024 
MHz-wide band).  At X-band, the tunings were at 8400 and 11000 MHz.

     This antenna fringed correctly at the other bands.

     Rick