[evlatests] 26D

[Mike Revnell]

This is the situation I add some logic in the deformatter to look at 
back in June.

Looking at the deformatter diagnostics I see that something about the 
data coming from the antenna is causing the deformatter to frequently 
realign the frames from the three optical channels. There are no parity 
errors. This in turn points back to the time stamping logic and the 
timing into the module.

We haven't yet found a problem in a DTS module that was swapped out for 
this problem. The details are still a mystery.

For the time being I've disabled the realignment logic in the 
deformatter. This means that the deformatter can't recover it a real 
hiccup occurs.

Hypothesis... The 'shredding' should have stopped. Possible change in 
delay on that IF.

Ken Sowinski wrote:
> With 0.4 sec integration time it is easy to see that the problem
> is what Rick has referred to as 'shredding'.  The amplitude takes
> one of several states and the phases are not too erratic.  This
> is pretty clearly a DTS problem.  There have been reports of
> 26D misbehaving for about a week.
>
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