[evlatests] Hysteresis in Tuning failures
David Harland
dharland at nrao.edu
Mon Jun 21 12:30:10 EDT 2010
Ken Sowinski wrote:
> ...I offer below a table for future reference that
> purports to map synthsizers to basebands which can be used as a
> guide when generating flag tables. Someone should look at it with
> care to see if I have made any mistakes...
>
>
> The L302s are easy. First column for 8 bit samplers, second
> column for 3 bit samplers.
>
> syn 8bit 3bit
> === ==== ====
> L302-1 AC AC1
> L302-2 BD BD1
> L302-3 -- AC2
> L302-4 -- BD2
>
>
> Determining which basebands are affected by a broken L301 is much
> more complicated. 'AC' and 'BD' denote all possible baseband pairs
> regardless of which samplers are used. 'BD-T303' denotes BD is bad
> if it goes through the T303 conversion path.
>
> band L301-1 L301-2
> ==== ====== ======
> P,L,S,C AC BD
> X -- --
> Ku AC BD
> K,Ka,Q all BD-T303
>
Ken, an XML file i use in the SSS model of the antenna electronics
agrees w/ your tables. --David
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