Search found 11 matches

by M-Dawg
Mon Aug 12, 2024 4:05 pm
Forum: RF Products
Topic: PicoVNA5 SDK S21 Parameters
Replies: 4
Views: 19460

Re: PicoVNA5 SDK S21 Parameters

Hi, It would be good to understand what the underlying reason for only wanting to measure S21 is: 1. Is the reason for only wanting S21 for faster measurement speed? 2. Is the reason for only wanting S21 so that no stimulus is applied to Port 2 of the DUT? In terms of measurement, the PicoVNA 108 ...
by M-Dawg
Fri Aug 09, 2024 6:54 pm
Forum: RF Products
Topic: PicoVNA5 SDK S21 Parameters
Replies: 4
Views: 19460

Re: PicoVNA5 SDK S21 Parameters

Hello, The S21-only correction method has not been implemented in PicoVNA 5 because it is only a simple correction based on normalisation that can be easily implemented in user code. To implement an S21-only correction: 1. Load the factory calibration 2. Measure a zero-length through 3. Record the ...
by M-Dawg
Tue Jul 02, 2024 6:19 am
Forum: RF Products
Topic: Crash after inputing 15004MHz end frequency
Replies: 2
Views: 3518

Re: Crash after inputing 15004MHz end frequency

Hi, Please could you confirm if your instrument is a PicoVNA 106 or PicoVNA 108? Before fixing this, it would be really useful if you could zip up all of the persistent application state and send it to support@picotech.com so we can examine exactly what has caused the problem: cd $HOME zip -r all ...
by M-Dawg
Tue Jun 11, 2024 9:47 am
Forum: RF Products
Topic: Ubuntu 24.04 for PicoVNA 5 ?
Replies: 2
Views: 1348

Re: Ubuntu 24.04 for PicoVNA 5 ?

Hi,

Ubuntu 24.04 is supported for PicoVNA 5. Thanks for checking!
by M-Dawg
Mon Mar 25, 2024 11:54 am
Forum: RF Products
Topic: Connecting to multiple PicoVNAs over SCPI
Replies: 4
Views: 6065

Re: Connecting to multiple PicoVNAs over SCPI

Thank you for this very valuable feedback. It's good to know of your use case. The reason that PicoVNA 5 needs to be restarted in order to change the SCPI port is: there may be multiple users connected to one VNA via SCPI. We judged that requiring an explicit reset (closing the software and ...
by M-Dawg
Thu Feb 01, 2024 6:01 pm
Forum: RF Products
Topic: PicoVNA5 API : ModuleNotFoundError: No module named '_vna_python'
Replies: 3
Views: 4488

Re: PicoVNA5 API : ModuleNotFoundError: No module named '_vna_python'

Thank you for updating us! Glad it's working :)
by M-Dawg
Tue Jan 30, 2024 1:29 pm
Forum: RF Products
Topic: PicoVNA5 API : ModuleNotFoundError: No module named '_vna_python'
Replies: 3
Views: 4488

Re: PicoVNA5 API : ModuleNotFoundError: No module named '_vna_python'

Hello, Thanks for your question. The examples have migrated to: https://github.com/picotech/picovna5-examples We'll get the outdated link the Programmer's Guide updated. The error appears to indicate that _vna_python.so cannot be found (or is not compatible with your system). Possible causes include ...
by M-Dawg
Sat Jan 13, 2024 6:20 pm
Forum: RF Products
Topic: Python API compatibility PicoVNA3 -> PicoVNA5
Replies: 3
Views: 36352

Re: Python API compatibility PicoVNA3 -> PicoVNA5

Hi, thanks for your questions. I've used the PicoVNA to automate measurements a few months ago and had a some trouble setting up the correct Python environnement. I could get the sample code working only on some 32-bits Python (<= 3.8 32-bits). First question, is it an issue from my side or is it ...
by M-Dawg
Wed Jan 10, 2024 12:02 pm
Forum: RF Products
Topic: P1dB utility not working
Replies: 1
Views: 13322

Re: P1dB utility not working

Hello, and thank you for reporting this issue. I can confirm this is an issue with PicoVNA 3, and that it will be fixed in the next release. In the meantime, the P1dB utility works correctly in a previous version of the software, PicoVNA 2. Please email support@picotech.com and reference this forum ...
by M-Dawg
Wed Dec 20, 2023 11:50 am
Forum: RF Products
Topic: logarithmic frequency sweep: PicoVNA 106 with PicoVNA 5 software
Replies: 2
Views: 4209

Re: logarithmic frequency sweep: PicoVNA 106 with PicoVNA 5 software

This is not currently possible in the PicoVNA 3 or PicoVNA 5 User Interface software, but will likely be added to PicoVNA 5 in 2024. If there are features that you would find useful, but are not currently available in the PicoVNA 5 software, you can help the development team to prioritise these by ...
by M-Dawg
Fri Sep 02, 2022 9:44 am
Forum: PicoScope 7 for Windows, Linux and Mac
Topic: PICO 7 is not starting - DEBIAN 10 - PICO 3406D MSO
Replies: 1
Views: 1798

Re: PICO 7 is not starting - DEBIAN 10 - PICO 3406D MSO

Also seen on Ubuntu 20.04, after following the instructions exactly from: https://oem.picotech.com/p7beta/download Using version Version: 7.0.107-1r12341 $ picoscope [ERROR] FATAL UNHANDLED EXCEPTION: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an ...