[time-nuts] HP 5370B

Mike S mikes at flatsurface.com
Sat May 10 10:18:34 EDT 2008

At 09:22 AM 5/10/2008, Didier Juges wrote...
>Most microwave network analyzers have amplitude
>resolution of 0.01dB, while their accuracy is just around 1dB in most 
>I have had to argue too many times that a piece of equipment with a 
>2dB p-p
>requirement on flatness was just fine when it measured 2.01dB on the 
>network analyzer. I would not have gotten in that argument if the data 
>been 1.99dB. Go figure.

I figure you're both wrong. If the measuring instrument is no better 
than 1 dB absolute, you can't expect to do it - a flat line measurement 
could represent an actual + or - 1 db, the limit of the spec. 

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