Thanks, O.J. Indeed, it appears I can assign different cal kits individually to different ports, which includes various pitch probes and connector cal kits. Best Regards,Vadim  On Tuesday, December 9, 2014 12:27 PM, "oj_danzy@xxxxxxxxxxxx" <oj_danzy@xxxxxxxxxxxx> wrote: Vadim, When you start the calibration wizard, you would want to use the SmartCal (Guided Calibration) process instead of the Unguided Calibration process. It will allow you to select a specific connector type and corresponding cal kit per port. This will allow you to have different pitch probes or a coax port and probe port. You'll just need to have the cal kits loaded for the probe pitches or mechanical cal kits being used, ecal modules will show up if they have that connector type. Sincerely, O.J. Danzy -----Original Message----- From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of heyfitch Sent: Tuesday, December 09, 2014 3:05 PM To: SI-LIST Subject: [SI-LIST] calibration of VNA When calibrating PNA 5225A, I usually select eCal - if the DUT is connectorized all around - or select ".ckt" file - if probing with micro probes.  Only one ckt file can be selected, matching either 300um, or 500um, or some other probe pitch. (These files came from the probe vendor.) There are situations when one needs to have probe of different pitch at different ports. Or, the DUT has connectors one some ports and others are to be micro probed.  It appears that my PNA does not allow for either of these two types of calibrations:1) with uProbes of disparate pitch on different ports,2) with connectors and uProbes on different ports. Has anyone figured out how to deal with this?  Are there papers on the subject? Thanks in advance for sharing your experience... Vadim HeyfitchAvago Technologies, FOPD ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List forum is accessible at:        http://tech.groups.yahoo.com/group/si-list List archives are viewable at:        //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at:       http://www.qsl.net/wb6tpu  ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List forum is accessible at:        http://tech.groups.yahoo.com/group/si-list List archives are viewable at:        //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at:       http://www.qsl.net/wb6tpu  ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List forum is accessible at: http://tech.groups.yahoo.com/group/si-list List archives are viewable at: //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu