[evlatests] 3 and 8 bit comparisons

Ken Sowinski ksowinsk at nrao.edu
Thu Sep 2 13:02:16 EDT 2010


On Thu, 2 Sep 2010, Rick Perley wrote:

> From this
> I deduce that the powers into the samplers are -- in effect -- too low.
> What is puzzling to me is Ken's statement that the powers were carefully
> adjusted before this experiment to give the same width in the state
> counts.  Do I misunderstand something?

Yes.  This was done with the power set to -30 dBm out of the
downconverter and we take what we get.  I have in progress
now a similar observation with the power levels all set to within
1 dB of the level you reported as best matching the eight bit
result.




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