[evlatests] Quick Stress Test

[Ken Sowinski]

On Thu, 23 Aug 2007, Rick Perley wrote:

>       Antenna 13, Ifs B and D have very clear *gain ramps* -- the
> amplitudes decline by about 2% (especially on IF D) over about 5
> seconds, then jump back to the previous level.  The effect is also
> clearly seen at L-band.
>       Antenna 16, IFs A and C have similar gain ramps, but of higher
> amplitude (about 10%), and on shorter timescale.  These ones are *not*
> seen at Lband, for this antennas.

These are likely caused by large (10-15 ns) delay errors
for 16AC, 13D , and, maybe 13B.  We are seeing the amplitude
variation caused by being on the slope of the delay beam.
All were corrected this morning based on the delay measurements
from startup yesterday.