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EMPower reporting wrong impedance values

Question asked by mburfo on Feb 27, 2007
Latest reply on Mar 1, 2007 by JERRY_MARKETOS
Can anyone help me?
I have narrowed my problem where Genesys reports 'perfect' impedance values (50.000 ohms etc) when I know for a fact this is not the case.

EMpower appears to have this problem when I remove the 'air above' or 'air below' layers.
I have checked and doubled checked the general layers and am using layer set ups I have used for a long while.

The most baffling thing here is I have installed GEnesys on a few machines to see if it was some form of corruption yet all three machines see the same prolem! Remove an air layer and get perfect impedances.

Has anyone seen this before or have a solution?
I am investigating stripline, the problem occurs with single and coupled stripline that I have looked at so far.

Thanks in advance
Mark Burford