I have never used one of these because I just could not understand them. An expression comes to mind, "When you're ready to learn, a teacher appears." It took me over 60 years to get ready and it was worth the wait. I'm looking forward to digesting the rest of your well-versed series. Outstanding. AD6AE
Dynamite presentation on SCT (Smith Charting Tricks)! Useful, terse, and crisply structured. Had even two people just like you been my colleagues at my first employer (3M Company) I would not have resigned in 1972 and gone off to medical school. But I did and the rest is history. Thanks for putting out this video. de NK7B
And this is THE ONE video that brings everything together, been studying this for a month or so but only now start to understand the matter. Thank you very much! PA1RAM.
I have been learning a lot from your videos. Working as an engineer in semiconductor org sometimes we forget the theory since we know practical stuff. But your videos are a bridge between the engineering theories and practical knowledge. Thanks a lot sir :) Please keep posting more and more videos.
Best explanation of the Smith Chart I've ever been exposed to. Just the right amount of explanation. Not too much so that it's confusing. Not too little so that it lacks meat.
And this is why i like this channel. I like how you are covering the electronics course bit by bit for students with “hands on”technique. I like very descriptive and precise videos of this channel.
Very nice demonstration Alan. Half a year ago I gave a lesson on smith charts and network analyzers in my company so I will share your video with my departement. Thank you.
I did this stuff at university 40 years ago, but I have struggled and struggled to get my head back around it. Then I stumbled on this video. Absolutely brilliant!
The best lesson on Smith Charts, that I've seen.! That's one subject that I've always found difficult. Impedance matching network design would be a great follow up.
FANTASTIC! Best explanation I saw around, very pedagogic. Eager to see followup videos since I would like to characterize/tune Sub-GHz (800-900Mhz) antennas myself with SDR :)
Very good practical demonstration of Smith chart !! I can " really see " what are effects of each component of complex impedance and how they are interact one with other. Thank you for sharing and construct this practical "geared elements demonstration circuit" - if it could be thereby named. :) Thanks a lot !
I've just bought a Nano VNA and was wondering how the Smith Chart worked so this was very useful... and being a video, I can watch it several times so that my old brain can absorb the information!
I am so excited about this!!!! Your explanations are the BEST. Alan, if you were stranded on Gilligan's Island - they would have been saved before the second episode aired.
This is the BEST demo explaining a Smith chart I have ever seen. Everything is easy when you know how. Best 73 es Happy New Year de KT1R Lou in (figid) Maine
Thank you for the explanation of Smith Charts. I’ve seen them before, but never knew how to use them, or how the worked. Your video offers a clear explanation for even a beginner like me.
Can't thank you enough, Alan. This video is a perfect complement to all the other info out there. Seeing the immediate effects on the VNA is invaluable. Appreciate your efforts in putting together the L/C network. A very nice introduction. Would be interested to see an "L" or pi network solution to a complex load like an antenna on the VNA, if you would be interested in doing something like that. WK2W
I took RF and wireless communication lectures during my EE studies in university, but nowadays we don‘t learn this anymore. I still always wanted to learn this properly, so thank you for this video! :)
- Eth that's interesting! I'm in Germany, here I didn't stumble over Smith Charts anywhere in my daily work, but their use in classic analog circuitry is still there, at least for manually solving. But were you ever required to actually use it in your daily work after the interviews?
Great video: Simple to understand, I had to learn all that complicated mathematics and explanations in Electrical Engineering books written in a very hard engineering jarjon when I was studying, this VIDEO explains it so easy to understand. Smith Chart makes it easy to use by Engineering Microwave Technicians or a Hobbyist.
Great demonstration! Best wishes for 2018 and thanks for all the video's you've created over the years. I have learned so much from you, you have no idea! You have a gift for clarifying subjects that have always seemed complicated.
Oh my god that is awesome. I just completed a EM waves course at school where we learned transmission line theory. It is very cool to see this on a VNA and your setup to model this.
Thanks again, Alan. Another really well made informative video. I don't ever use anything radio based, and I think I'm glad of that after watching videos like this. I do audio (music equipment - pedals, synths), and a lot of your videos have a good use in this community. I refer people to your videos a lot. Happy new Year!
A++++! As an EE student, I haven't taken any classes that discuss smith charts yet, but Circuits 2 was just enough background that all this makes sense! Very well done! Please make more smith chart videos!! 73, KC9DZT
Thanks for taking the time to make the excellent videos that you do. You show theoretical principles in a practical real world light. I guess that's what I'd like to see with future Smith chart videos, is practical examples of matching problems. I'm sure you could come up with some real world examples I wouldn't dream of. Happy New Year!
Great video! Looking forward to your videos about SWR! Tried to take a peek into RF world but the maths are too hard to be visualised, your channel helps a lot, thanks!
Do you have a Guide to "Which NanoVNA do I need" question? ham wanting to examine and Tweak my antennas. Thanks. All I have now is MFJ 259B. FA-VA5 too complex for this old Ham.
It pays to have the correct tools for the job ! And the VNA has become accessible to most ! Very interesting, and nicely done ! Appreciate your calm demeanor ! You don't know how many of these I've walked by at a Hamfest, and figured they were merely toss aways from a Cell site ! Now I will pay more attention ! Too, I'm guessing these particular Duplexers are Low power ? And since they are essentially passive, does it matter which port is designated TX or RX ? As long as you understand how you choose to designate them ? Meaning how you assign the Low or High ports ?
This is one of those videos I will have to watch 5-6 times and do a little diagramming to actually wrap my head around lol. Thanks for the awesome video Alan!! Happy new year my friend! 73deN0BPS
Such a fantastic demonstration. I have never actually used a Smith chart since I did my 3rd level RF Engineering course. I’ve decided to challenge myself and put the theory to good use and try to compare it with some experiments done using a series of L matching combinations to Z match an antenna at different frequencies. I don’t have access to an analyser so I guess some ingenuity might be called for ....I need to build a decent directional coupler so I guess it’s a case of a big learning curve coming up. Thanks again.
Excellent video made essential viewing by the cheapness of the NanoVNA. Reminds me of being at college 25 years ago when I programmed a scientific calculator to calculate and plot complex impedances but when the programme ran I just got a spiral graph. Anyway, I never figured out what was wrong with the programme but never forgot the spiral plot. Well, wasn't I chuffed when I saw that same spiral graph on the NanoVNA making me realise the programme was correct after all Yay. 😁
I've seen them before, but never knew what they were, so I've learned something today. Thanks for making this video. (I also learned that Smith charts make complex impedance look complex {:-0)
Many thanks for the great Introduction for the Smith Chart. Looking forward for more videos on its applications like reflection and impedance matching. I guess that it possible to estimate typical loss of signal energy from the chart as well?
