AnsweredAssumed Answered

Adapter error contribution...

Question asked by wilber on Jul 18, 2006
Latest reply on Jul 19, 2006 by dgun
My question is general in nature and not nessacarily focused on calibrations done with a PNA.

I would like to know the maximum frequency at which adapters may be used during VSWR or attenuation measurements with negligable error. Consider that any adapters used are in good condition, clean and have proper dimensions.

We have verified system integrity on N- type, 3.5, and 2.4 by using a standard offset of the same connector family. However when calibrating BNC or TNC type devices, there is no standard offset available to verify the system. My theory is that when the wavelength of the test frequency is longer than the electrical length of the adapter, then there are no standing waves and error is negligable.

Any comments on this will be very appreciated. Thanks