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Standard definitions on 8753ES

Question asked by b.d.hall on Mar 24, 2010
Latest reply on Mar 25, 2010 by Dr_joel
I have a question about the internal firmware standard values for the 85032B/E type-N calkit on the HP8753ES.

I have noticed that the coefficients for the Open with a male connector (labeled Open(f) in the kit) are different in firmware from those in: 1) the manual I received with the kit, 2) the more recent manual that I downloaded from Agilent (July 2002 version) and 3) from Agilents website  for the PNA that has calkit definitions information for many kits. These three sources give the same values for C0, C1 etc, but the ones in the VNA are different.

Yesterday, our local Agilent reseller came and upgraded the VNA firmware, which is now "8753.07: Oct 30, 2002". However, the coefficients did not change.

Can someone please explain to me what is going on?