[evlatests] Testing atten. levels

[Ken Sowinski]

  The results are best 
> described as "unsuccessful", but not necessarily due to the level setting 
> features themselves.  Maybe someone can figure out what went wrong.  In 
> all cases the deformatter RMS values are about 71 or so -- ie VERY high -- 
> even higher than I was able to get when turning off all attenuation at X 
> band.  

The problem appears to be that there is no optical power
into any of the deformatter modules.  The thing to do now
is make sure the antenna is in sync and then turn the 
samplers on.

Ken