Solver32 Software Updates for the LiteVNA and V2Plus4
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- Опубликовано: 3 окт 2024
- Demonstration of latest updates to my software for the LiteVNA and V2Plus4 supporting unlimited memory storage.
For more details, refer to the following link on EEVBLOG:
www.eevblog.co...
Intel paper: 1000BASE-T/100BASE-TX/10BASE-T Physical Layer Compliance Tests Manual
community.inte...
Section: 1000BASE-T MDI Return Loss
The BALUN uses a Mini-Circuits TC1-1-13M. The paper shows a start frequency of 1MHz where this transformer is spec'ed for 4.5M - 3G. Digikey still offers an evaluation board for this transformer (shown in previous picture). Datasheet may be found here:
www.digikey.co...
Datasheet for the ADT2-1T may be found here:
www.minicircui...
While the TC1_1_13MA was setup as a current BALUN, the ADT2-1T was setup as a voltage BALUN. Attached showing the return loss of the four pairs on our 1Gb Ethernet after calibration.
blog.minicircu...
Nice work!
Thanks
It's Christmas once again. Thank you.
No problem John. Enjoy the new feature.
This is excellent, it'd be a regular tool in my workflow... but for LabView and Windows. Not at all to diminish your excellent work here, you've explained those choices perfectly well in other videos. Have you (re)considered open sourcing it, or making source available to someone who might spend the (considerable) time to port it to for example Python with SciPy?
There are a few open sourced programs available for the various low cost VNAs. I have not used them but understand these are well supported and are suited for the ham and CB radio hobbyist. You may want to have a look. If they are missing some features you need, you could suggest the developers add them or possibly add them yourself depending on your skill level.
@@joesmith-je3tq I not a Ham or CB guy ;) Have tried those, the programs don't have professional VNA and TDR functions, which is of course why I asked the question. Anyway, excellent work.
@@d.jeffdionne I understand these open sourced applications already support multiple platforms. They should make a very good starting point for anyone wanting to improve them. I have not looked to see what feature set they offer but TDR would be pretty basic to add if that was the only feature you were looking for. I'm actually surprised to hear they don't support it as the developers were asking me questions about how to implement it. We had exchanged some test files and they had it working. That's been several years ago. You can find this exchange up on the EEVBLOG forum.
Sweet! I'm really curious if the LiteVna could be pushed to around 7.5GHz. I was planning on designing a phemt lna for 7.2-7.7GHz range, so I'd need to do a ton of matching and measuring.
They limit the LiteVNA's firmware to 9.3GHz. In the following post, you can see a 7GHz HP on the LiteVNA. Scroll down a few posts and you can see the floor.
www.eevblog.com/forum/testgear/agilent-e8357a/msg4507579/#msg4507579
Hei, i use labview quiet a bit and was wondering if you would be willing to share the source code? Need it for something specific for my master thesis, but i want to add the ability to measure permativity with an open ended coaxial probe.
The software is not open sourced, however there are several programs available for these low cost VNAs that are. Plus you get the added benefit of them being supported.
@@joesmith-je3tqThat is understandable, just wanted to ask. I will have to make it in LabVIEW because of where i want to take it, hence me asking and not using the other solutions. Would you mind sharing if there was any specific issue getting in working with LabVIEW? and the solution? I wanted to use your code to jump over some pitfalls, but just having them pointed out would also be very good. Thinking about the connection and grabbing data, and converting it to reflection values. What i want to do with it after that is straight forward or your app cannot do it, going convert it to permittivity.