Introduction to Waveguides using the LiteVNA, Part4, Calibration without nuts & bolts

This video demonstrates using a homemade standards to calibrate the VNA.
EEVBLOG thread, Experimenting with waveguides using the LiteVNA
www.eevblog.com/forum/rf-micr...
Introduction to Waveguides using the LiteVNA, Part1
• Introduction to Wavegu...
Introduction to Waveguides using the LiteVNA, Part2
• Introduction to Wavegu...
Introduction to Waveguides using the LiteVNA, Part3
• Introduction to Wavegu...

[@Chris_Grossman]

Thank you for another excellent video! I am learning quite a bit from these since I have never personally set up plumbing. The way the calibration standards are done seems obvious once you show them, but I never knew about them. Not only am I learning about those, but your I am learning from the way you implemented your home built extender. It is all excellent work. I have had chips measured with plumbing equipped VNAs and plumbed wafer probes, but I only got to watch (but not touch) since it was in a production lab. Even though the connections were plumbing the calibrations were on-chip, not waveguide level.

[@joesmith-je3tq]

You and me both! Playing with WGs on a shoestring budget has a benefit in that we have to get our hands dirty rather than just press a button.

[@earlyadapter643]

Excellent to bring waveguide technology to the attention of a larger audience ! For the shoestring budget i don't see yet how Aliexpress can make the price drop... While 2.4 and recently 5.8 GHz technology has become dirt cheap due to surplus from WiFi, satellite TV and the cheap VNA and spectrum analyzers, for 10 GHz/waveguide you still need the mixers and amplifiers for up and down conversion. For a plain receiver, a LNB could be used and nowadays they have PLL instead of DRO, but using the same LO for generating the stimulus is still a way to go.

[@namregpxp]

Great video, I want more.

[@joesmith-je3tq]

Thanks. I've been playing around a bit with that hybrid T and may put a video together for it at some point. Stay tuned...

[@Mr.Laidukas]

I would really like to se teardown and compare video 21:00 . New subscriber from Lithuania.

[@joesmith-je3tq]

No problem. I've been meaning to have a look. kzbin.info/www/bejne/nH2xpJ-PgZx8r5I

[@aurthorthing7403]

It helps me watch videos when the creator rubs their fingers on everything really fast and flip the stuff over rapidly... like it's really hot!

[@joesmith-je3tq]

Looking over your comments for the last 5 years, I wouldn't expect anything less. lol.

[@aurthorthing7403]

@@joesmith-je3tq cool... maybe put in more jump cuts, as well. Put one after every word... gotta have over 10 in the first 2 minutes. That's a new rule from KZbin.

[@joesmith-je3tq]

@@aurthorthing7403 I bet it's at least double that but you don't detect it.

[@edinfific2576]

That was "waave" over my head... JK, I just don't know all the details. 😉

[@joesmith-je3tq]

You and me both!!

[@vincei4252]

Hi Joe, I don't know how you have the patience for dealing with some of the people on the EEVBlog forum who, in my experience, just want to attempt demotivate and question anything you do that doesn't suit their tastes. Ask about some advanced FPGA hardware and some clown berates me for looking at a board that isn't beginner friendly. I guess everyone is a beginner over there? wtf. This is why I rarely post over there.

[@joesmith-je3tq]

The downside with EEVBLOG is the amount of non-electronics related topics. Some people who contributed technically, were banned for getting involved with these toxic topics. I've had a few of my own posts censored and was banned for a few days for having fun with a troll. LOL. As the site continues to become diluted, I tend to use it less. RF topics are not very popular. I suspect most of the feedback I receive is from hams.

[@vincei4252]

@@joesmith-je3tq Thanks for the response. You were banned? WTF. You know, I was thinking of fighting like with like but it's very clear that these "super contributors" that provide little value other than a high number of posts in almost every thread don't like being told where to get off. It's Easter Sunday and I was frustrated by the unnecessarily hostile responses so I decided to move on. As one of my best friends said, quote: "Ask yourself this question: Would anyone of those people say the same thing in person? I doubt it. The internet makes people very brave when they're behind a keyboard" It's not worth engaging with "tough guys". Have a great evening and rest assured even though I don't comment all the time I appreciate your content regardless of the topic.

[@joesmith-je3tq]

Yes, I was banned for a few days. It wasn't a big deal. You can find it at the link below. For context, read a few of the previous posts leading up to it. You may get an idea of who was involved. I'm not concerned about being permanently banned. As I said, the forum is less interesting to me now days. www.eevblog.com/forum/projects/challenge-thread-the-fastest-breadboard-oscillator-on-the-mudball/msg3101632/#msg3101632

[@joesmith-je3tq]

Another time I was having fun trolling a troll. See the pattern... lol www.eevblog.com/forum/testgear/a-look-at-the-uni-t-ut210e/msg4790699/#msg4790699

[@vincei4252]

@@joesmith-je3tq Thanks for that. I looked thru the threads and sure enough some of the same names popup. Including the "super contributor" that derailed my question almost as soon as I posted it. Unbelievable.