Impedance open circuit calibration problems.

[SebBo]

Hi,

I am having issues with the open circuit calibration for impedance measurements. I have a known 100.2R reference resistor and use an ID14 mk2 for measurements. I have triple checked the cabling is correct.

The issue appears to be during the calibration sweep, right after the actual measurement finishes. The measurement drops drastically with about 1-2 seconds left and I get this error, as I have seen others also get:

The level meter shows nearly identical readings for the two channels throughout the sweep until the last second where the measurement drops and I get this error.

Edit: This is version 5.40

 

[SebBo]

Update: Arta Limp calibration gives me a calibration of 0.01dB difference.

 

[John Mulcahy]

Please post images of your REW soundcard preferences and the Measure dialog before running the cal.