Groups
Conversations
All groups and messages
Send feedback to Google
Help
Sign in
Groups
VNA Tools
Conversations
About
VNA Tools
1–30 of 270
Welcome to the VNA Tools forum!
METAS VNA Tools is
a software that is designed to compute uncertainties of S-parameter measurements, see
www.metas.ch/vnatools
.
Mark all as read
Report abusive group
0 selected
Gamze Aydin
,
Michael Wollensack METAS
4
Jan 24
Data Conversion within VNA Tools program
Hi, no you cannot enter those values directly in VNA Tools. You've to convert those impedance
unread,
Data Conversion within VNA Tools program
Hi, no you cannot enter those values directly in VNA Tools. You've to convert those impedance
Jan 24
Tomo Yokoyama
,
Michael Wollensack METAS
4
Jan 23
Matlab Version & mkl_optimizer
Hi, I would do it like that: >> a a = 0.8147 + 0.6324i 0.9058 + 0.0975i 0.1270 + 0.2785i 0.9134
unread,
Matlab Version & mkl_optimizer
Hi, I would do it like that: >> a a = 0.8147 + 0.6324i 0.9058 + 0.0975i 0.1270 + 0.2785i 0.9134
Jan 23
Michael Wollensack METAS
,
Mr Skinner
7
Jan 17
Q&A
Import existing raw data
Hi Michael, Excellent, many thanks for your help. Best regards James On Monday, January 9, 2023 at 3:
unread,
Q&A
Import existing raw data
Hi Michael, Excellent, many thanks for your help. Best regards James On Monday, January 9, 2023 at 3:
Jan 17
caner oner
,
Michael Wollensack METAS
2
Jan 11
Unc. Error
Hi, can you please upload your calibration standard definitions which you used. I'm pretty sure
unread,
Unc. Error
Hi, can you please upload your calibration standard definitions which you used. I'm pretty sure
Jan 11
josem...@gmail.com
12/22/22
Linearity and Drift Characterization helper
Dear Michael and VNA Tolls developers, Thanks for all your support in this group. I my opinion, as
unread,
Linearity and Drift Characterization helper
Dear Michael and VNA Tolls developers, Thanks for all your support in this group. I my opinion, as
12/22/22
Michael Wollensack METAS
2
12/22/22
Difference between an over-determined linear one port calibration and an optimization calibration
I would like to explain that with the following example in MATLAB. For reason of simplification I
unread,
Difference between an over-determined linear one port calibration and an optimization calibration
I would like to explain that with the following example in MATLAB. For reason of simplification I
12/22/22
Michael Wollensack METAS
2
12/22/22
Visual Studio Code and VNA Tools
1. You need Visual Studio code, see https://code.visualstudio.com/ 2. You need CPython, see https://
unread,
Visual Studio Code and VNA Tools
1. You need Visual Studio code, see https://code.visualstudio.com/ 2. You need CPython, see https://
12/22/22
Claes Wingqvist
,
Juerg Ruefenacht
2
12/5/22
Cable movement in measurement journal
Dear Claes, cable influences are not an easy topic and how to minimise them are discussed in detail
unread,
Cable movement in measurement journal
Dear Claes, cable influences are not an easy topic and how to minimise them are discussed in detail
12/5/22
yaser...@gmail.com
,
Michael Wollensack METAS
3
12/1/22
Version 2.6.0 has a problem to define an Agilent PNA E8361C VNA
Thank you very much Michael, the problem is solved after installing NI-VISA. On Wednesday, November
unread,
Version 2.6.0 has a problem to define an Agilent PNA E8361C VNA
Thank you very much Michael, the problem is solved after installing NI-VISA. On Wednesday, November
12/1/22
Michael Smith
,
Michael Wollensack METAS
3
11/8/22
Convert vdatb to sdatb to use analyzedrift?
thank you. modifying the analyzedrift script worked great! On Monday, November 7, 2022 at 4:57:25 AM
unread,
Convert vdatb to sdatb to use analyzedrift?
thank you. modifying the analyzedrift script worked great! On Monday, November 7, 2022 at 4:57:25 AM
11/8/22
Michael Wollensack METAS
2
9/9/22
Loading a cable from the database throws an XML exception in VNA Tools V2.6.0
Hi, this a bug introduced in VNA Tools V2.6.0. Cable files created with VNA Tools V1.7.0 to V1.8.2
unread,
Loading a cable from the database throws an XML exception in VNA Tools V2.6.0
Hi, this a bug introduced in VNA Tools V2.6.0. Cable files created with VNA Tools V1.7.0 to V1.8.2
9/9/22
handans...@gmail.com
,
Michael Wollensack METAS
3
9/5/22
IVi.visa.IO Timeout Exception
5 Eylül 2022 Pazartesi tarihinde saat 11:49:54 UTC+3 itibarıyla Michael Wollensack METAS şunları
unread,
IVi.visa.IO Timeout Exception
5 Eylül 2022 Pazartesi tarihinde saat 11:49:54 UTC+3 itibarıyla Michael Wollensack METAS şunları
9/5/22
Michael Smith
,
Michael Wollensack METAS
2
8/2/22
Adding instrument drift data to table
Hi, see the VNA Guide, Appendix G.3 https://www.euramet.org/Media/news/I-CAL-GUI-
unread,
Adding instrument drift data to table
Hi, see the VNA Guide, Appendix G.3 https://www.euramet.org/Media/news/I-CAL-GUI-
8/2/22
wickli...@gmail.com
,
Michael Wollensack METAS
2
8/2/22
Conversion to VDF via Script
Hi, you could write a text file with 3 columns (frequency, value and uncertainty), see https://www.
unread,
Conversion to VDF via Script
Hi, you could write a text file with 3 columns (frequency, value and uncertainty), see https://www.
8/2/22
Michael Smith
,
Juerg Ruefenacht
3
7/25/22
4P Ecal error corrected file sizes: ENORMOUS!
Thank you, this is helpful. I did have the Small Unc Limit set to 0 from the training. I'm using
unread,
4P Ecal error corrected file sizes: ENORMOUS!
Thank you, this is helpful. I did have the Small Unc Limit set to 0 from the training. I'm using
7/25/22
roschiroh...@gmail.com
, …
Fabian Distler
7
6/28/22
Q&A
How do I characterize a Connector?
Hello, When characterising a test port adapter, does it make a difference whether one calibrates
unread,
Q&A
How do I characterize a Connector?
Hello, When characterising a test port adapter, does it make a difference whether one calibrates
6/28/22
guo ying
6/8/22
Does METAS plan to support evaluating Noise figure and mixer's uncertainty?
I have seen latest Version 2.5.7935.30849 can support Frequency Conversion Calibrations(3.9.1 Scalar
unread,
Does METAS plan to support evaluating Noise figure and mixer's uncertainty?
I have seen latest Version 2.5.7935.30849 can support Frequency Conversion Calibrations(3.9.1 Scalar
6/8/22
Michael Smith
,
Michael Wollensack METAS
9
6/7/22
Keysight Ecal accuracy comparing METAS Zo states with Firmware Calibration
I keep making incremental progress on this methodology, Michael, but progress nonetheless. Using
unread,
Keysight Ecal accuracy comparing METAS Zo states with Firmware Calibration
I keep making incremental progress on this methodology, Michael, but progress nonetheless. Using
6/7/22
mauro foti
,
Michael Wollensack METAS
2
6/2/22
Cannot open PNA E8364C with VNA Tools 2.5
Hi, this is bug introduced in V2.5.2 of VNA Tools. There is workaround for it, see see https://groups
unread,
Cannot open PNA E8364C with VNA Tools 2.5
Hi, this is bug introduced in V2.5.2 of VNA Tools. There is workaround for it, see see https://groups
6/2/22
Tomo Yokoyama
,
Michael Wollensack METAS
2
5/24/22
Errors: Example 09_OnWafer_Example_GGB_CS-5 (LRRM_Opt_01.calcfg)
Hi, LRRM_Opt_01.calcfg needs QSOLT_01 as start values for the optimization. LRRM_Opt_01.calcfg is
unread,
Errors: Example 09_OnWafer_Example_GGB_CS-5 (LRRM_Opt_01.calcfg)
Hi, LRRM_Opt_01.calcfg needs QSOLT_01 as start values for the optimization. LRRM_Opt_01.calcfg is
5/24/22
Michael Smith
,
Michael Wollensack METAS
4
5/19/22
ECAL issue: Number of ports must agree
Good news, Michael. I was able to save the impedance states as databased standards and refer to them
unread,
ECAL issue: Number of ports must agree
Good news, Michael. I was able to save the impedance states as databased standards and refer to them
5/19/22
Michael Wollensack METAS
2
5/9/22
Can't repair or uninstall VNA Tools
This could be due an unhandled exception when VNA Tools loads the user.config file: Unhandled
unread,
Can't repair or uninstall VNA Tools
This could be due an unhandled exception when VNA Tools loads the user.config file: Unhandled
5/9/22
Rob Feldman
,
Michael Wollensack METAS
2
4/29/22
Power Sensor Automation
The power sensor and the VNA sweep is measured with Metas.Instr.Driver.Vna.VnaHelper.
unread,
Power Sensor Automation
The power sensor and the VNA sweep is measured with Metas.Instr.Driver.Vna.VnaHelper.
4/29/22
Claes Wingqvist
,
Michael Wollensack METAS
3
4/19/22
Support for old firmware in PNA
Hi, The fix works. Thanks for the suppport. Regards Claes RISE, Research Institutes of Sweden tisdag
unread,
Support for old firmware in PNA
Hi, The fix works. Thanks for the suppport. Regards Claes RISE, Research Institutes of Sweden tisdag
4/19/22
Zach Horn
,
Michael Wollensack METAS
2
4/11/22
GSOLT thru requirements
Hi, this is not possible at the moment with a GSOLT calibration. This is a limitation of VNA Tools.
unread,
GSOLT thru requirements
Hi, this is not possible at the moment with a GSOLT calibration. This is a limitation of VNA Tools.
4/11/22
Zach Horn
,
Michael Wollensack METAS
2
4/7/22
snp to sdatb conversion
The Linearity tables are empty for your defined VNA. See Database / VNA Device / Linearity. See an
unread,
snp to sdatb conversion
The Linearity tables are empty for your defined VNA. See Database / VNA Device / Linearity. See an
4/7/22
Tomo Yokoyama
,
Michael Wollensack METAS
2
4/6/22
Question: Optimization calibration & {D] & [V] boxes characterization
> Does this numerical approach compute a new set of error terms after each iteration? Yes > Are
unread,
Question: Optimization calibration & {D] & [V] boxes characterization
> Does this numerical approach compute a new set of error terms after each iteration? Yes > Are
4/6/22
Tomo Yokoyama
,
Michael Wollensack METAS
3
4/5/22
OpenFile(filepath) & .NET Assembly
Thanks, Michael. 'LoadSParamDataAsStruct' works fine. On Monday, April 4, 2022 at 11:35:24 PM
unread,
OpenFile(filepath) & .NET Assembly
Thanks, Michael. 'LoadSParamDataAsStruct' works fine. On Monday, April 4, 2022 at 11:35:24 PM
4/5/22
Simon Gut
,
Michael Wollensack METAS
3
4/5/22
Combine adapter data measured in both direction
Thanks Michael for the script. Works perfectly fine. Best regards Simon Michael Wollensack METAS
unread,
Combine adapter data measured in both direction
Thanks Michael for the script. Works perfectly fine. Best regards Simon Michael Wollensack METAS
4/5/22
Tomo Yokoyama
,
Michael Wollensack METAS
3
4/4/22
Computing uncertainty of S21dB, from measured 2-port S-parameters
Hi, your conversion looks right, see https://www.wolframalpha.com/input?i=D%5B20*log10%5Bx%5D%5D
unread,
Computing uncertainty of S21dB, from measured 2-port S-parameters
Hi, your conversion looks right, see https://www.wolframalpha.com/input?i=D%5B20*log10%5Bx%5D%5D
4/4/22