Every University Teacher must watch this before teaching to students. Perfect, clear and neat way to explain. I request your team to continue posting such videos. Thank you so much.

@buffplums

2 жыл бұрын

My points exactly. As someone recently called to teach simplified communications in radio, these videos are an excellent source of refreshment of essential principles. I love the concise and pitch (for my level of interest anyway) of these videos and will take a leaf from the presentation style of these presentations.

@dionejohn8004

2 жыл бұрын

My professor understood the assignment 😂

Wow you're the best. I spent 2 hours in class and didn't get a damn thing but this 10 minute and I feel like an expert. Thanks a lot.

@pauldenisowski

4 жыл бұрын

Thanks!

God bless you mate, I have an exam today and I couldn't understand a single word from my brain-dead teacher. Thank you!

@Countolaf03

2 ай бұрын

Are you an EE now?

@PedramNG

2 ай бұрын

@@Countolaf03 no, not anymore

Has been 15 years I'm looking at antenna theory and never understood a Smith chart. In 10 minutes, I got it

It's been 50 years since I first saw the Smith Chart, never got it; now I understand a lot of things in ten minutes. Thanks. K4QET

I’m so impressed by how effective your short videos on VSWR and S Parameters are. I’m a lecturer who hasn’t worked in the field for many years but does occasionally dabble as a hobbyist. Recently I have been called upon to teach fundamental radio communications and it’s very refreshing to see these videos. Thank you.

I recently purchased a NanoVNA to tune my HF amateur radio antennas minimising the needing for a matching transformer. However, I was sticking to the VSWR display because the Smith chart looked complex. Thanks to this video I have found out so much more from reading Smith chart graphing now that I understand them! Thanks for making this understandable and clear.

@pauldenisowski

5 ай бұрын

My pleasure - good luck!

This is THE BEST "Readers Digest" Version of Smith Charts Ever. Thanks for this AWESOME Video and "To the Point" .approach!!

Excellent presentation. Should be mandatory for anyone that works with or plans to work with RF.

That was really well done. It was the perfect presentation style (at least for me). And there was little to no subtle marketing of your company's brand; you simply presented the base concepts along with some historical background of who the Smith in "Smith Chart" was. I understand this so much better now. Thank you.

Excellent. Just excellent... being a maths "dumbo" I've always struggled with the Smith Chart. Being a licensed radio amateur a proper understanding of the chart, it's functions, AND HOW THEY CAN BENEFIT ME by properly understanding them escaped me year on year,. NO MORE. Paul, Thank You ! this presentation should be part of every single radio amateurs course ! Am very very grateful to you for this more than excellent video. Your companies instruments for us radio amateurs are the stuff dreams are made off. Sadly... lottery tickets to win them are far and few between... but,... we live in hope! Thank you again Paul. Albert

@pauldenisowski

2 жыл бұрын

My pleasure Albert and thanks for the feedback - 73! Paul, KO4LZ

Kudos Rhode Schwarz - these illustrations are invaluable. Thank you so much!

@pauldenisowski

3 ай бұрын

Thank you!

Outstanding job on this video. Simple, to the point, easy to understand, and clearly presented. Bravo!

Short crisp and very well explained!!

@pauldenisowski

4 ай бұрын

Thank you!

Saved tons of hours studying and listening to my course instructor!

This is the best Smith Chart refresher/lesson i've had. It makes me think why it has to be so complicated before. The technology ( video/graphical presentation) helped . Thanks. The training materials on this site , are all so Zen like.

@pauldenisowski

Жыл бұрын

Thanks! Really appreciate the feedback!

I have nearly no idea how to apply this or when I'll use it but the graph usage was explained clearly and consisely. I have no background in electrical engineering but I'll come back to this at some point

@pauldenisowski

8 ай бұрын

Glad it was helpful - thanks for the feedback!

This is the best explanation I have ever seen Understanding the Smith Chart. Well done!

@pauldenisowski

2 жыл бұрын

Thanks - really appreciate it!

Great explanation! Now I understand the display on the VNA better.

Thank you Rohde Schwarz!

This video should be directly used as teaching materials in university. So concise and inspiring.

@pauldenisowski

5 ай бұрын

Thank you!

Thank you very much! I have started to read about Smith charts many times but always given up before getting to grips with it. Your professional presentation lifts the mystic vale and reveals the elegant simplicity of the chart. Thank you. Kind Regards . . . Andy. gw0jxm

solid 10mins cover my professor's 30mins lecture on smith chart thanks

Perfect and clear! Great thanks! It's very helpful to the person who never studied the electronics theory.

@pauldenisowski

8 ай бұрын

Thank you!

Back in school, the Smith chart was clear as mud. After watching this video it is a lot clearer. Good job.

@pauldenisowski

Жыл бұрын

Glad it helped - thanks!

A perfect way of explaining things. This guy should get an all time best-teacher award.

@pauldenisowski

3 жыл бұрын

Thanks!

Thank you. That was the best summary on the Smith chart I have seen.

@pauldenisowski

Жыл бұрын

Thanks!

The VNA @ the end of this video is a righteous piece of work, would really enjoy seeing a tutorial on that piece of gear in use. Those handles on the front are so you can hang on to it while it rests on the night stand next to the bed.

@pauldenisowski

Жыл бұрын

Check out the Test and Measurement Fundamentals playlist at the top of the R&S KZread channel: I've done a number of VNA related videos already and more are on the way! And as someone who worked as field apps engineer in T&M for > 20 years, I have a lot of experience with those handles :)

Very good explanation 🌹. Thank you

@pauldenisowski

2 жыл бұрын

Thanks!

Absolutely phenomenal!! Sir, your videos have helped me a tremendous amount in my course!!

Perfect I understood without even handling a pen to write down Nicely done

@pauldenisowski

Жыл бұрын

Thanks!

What else can i say? This is just amazing! Thank you so much for saving me from my terrible university profs.

This is a great primer on understanding Smith charts. Very detailed explanation!

Clear and to the point. Thank you

A clear, concise overview. Nicely done!

The best and most precise video!! Appreciate the content and the length of the video :D Helped a lot! Thank u so much!

Amazing way to discuss importance of smith chart along with illustrations.

Clear and understanding.... Good presentation

Very well explained - well done!

Well done! I actually got that lot, You have a gift!

U explained in a very simple manner ☺️ this giant type looking smith chart..thanks 🙏

very helpful series of videos paul

Simply amazing, Thanks

Thank you, I just found your KZread Channel, but I have your Electronic Warfare pamphlet, and at least one Radio Spectrum chart. I operate a ship, and the radios, internet, satcomms, secure comms, and I'm looking to detect signals that might prove hostile. and hoping to maintain comms with the office, home, and on the ship. Plenty of radio challenges. I'm tackling them as they present themselves. Thanks for the learning materials!

saved my day, great quick explanation

Great effort.. Thank you, Keep it up

Really awesome. Helped a lot. Thanks

Well done, a wonderful explanation, it was very easy to follow you step by step.

Very efficent teaching! Thank you!

@pauldenisowski

3 жыл бұрын

Thanks - as an engineer, efficiency is very important to me :)

Very good. Thanks. only people who understands the subject clearly can explain in simple terms - ofcourse one should have passion to explain. Only few people explain to be understood while many others explain to make it sound complex.

@pauldenisowski

Жыл бұрын

Even though I've been working in test and measurement for over 25 years, I still learn something new myself every time I start making a new video. :) Thanks!

Thank you!! Very good presentation!

Beautifully explained....Thanks a ton....

@pauldenisowski

5 ай бұрын

Very much appreciated :)

Awesome Explanation.

10 out of 10 I now remember what I learned 40+ years ago, god it was hard to do with a pencil

Perfect explanation. Thank you, sir.

@pauldenisowski

4 ай бұрын

Thanks!

simply amazing

thanks, thanks, thanks... great explaination

Thank You

Top class !!👏👏👏

Always a great quick refresher course when you do not use this tool on a daily basis.

@pauldenisowski

Жыл бұрын

Thanks for the feedback!

Well done best explanation simple and clear

@pauldenisowski

Жыл бұрын

Thank you!

Great very easy to understand now thankyou!

Nice job!

Well done. I think for many viewers, showing a 2:1 VSWR circle would help.

@pauldenisowski

3 жыл бұрын

Actually, I'm planning a number of other Smith Chart related videos, including one on constant VSWR circles :) Thanks for the suggestion!

very nice explanation

thank you so much for your effort.

It is very helpful.

thanks a lot

fabulous, speechless

Amazing

This just saved my bacon! Thank you

@pauldenisowski

2 жыл бұрын

Glad it was helpful!

Thank you so much !

You are amazing...thank you..🙏

GREATEXPLAINATION

wow. This is one of the best, most effective and efficient educational presentation of practical - u s e f u l information I have ever seen. In 294 seconds. Useful because my Extra ticket expired during a crazy time of life, and I will be retaking it, building a station, and doing SOTA POTA outings. Practical, because 4.2" TFT display, 50Khz-1Ghz VNA's can these days be had for $90-$100 delivered. My thanks to Rohde Schwartz and to the creator(s) of this video. Educational excellence beyond compare.

@pauldenisowski

4 жыл бұрын

Thanks! 73 de Paul, KO4LZ

The Tōsaku Mizuhashi Chart was published in 1937 two years before this Philip Smith Chart!!!

quite efficient lesson, thanks a lot

@pauldenisowski

2 жыл бұрын

Thanks!

great sir superb explanation and presentation is awesome

very nice explanation!

@pauldenisowski

5 ай бұрын

Very much appreciate the feedback!

Thank you..

Yeah you should definitely watch this

Absolutely helped me with making a PB&J sandwich

Thank you very much

That device and it’s inner working Looks and sounds just fashinating.

This is million times easier than the Wikipedia page

Many doesn't realize that testing is as challenging as designing something if not more challenging

@pauldenisowski

Жыл бұрын

I feel exactly the same way :)

The greatest use of the smith chart is two wizards trying to simultaneously counterspell each other...

Thank you bro god bless you!🦾

@pauldenisowski

11 ай бұрын

Thanks!

Thank ever

Smith Chart made simple.

Xcellent

Great presentation. In the example at 8:47, when you normalize the complex impedance, why does only the sign on the resistive component change? If I factor out -1, shouldn't we get -100 + j75 = -(100-j75)? Then -Z/50 = 2 -j1.5?

Is that a vintage Rohde Schwarz VNA shown an the end? If so, what year would that be (approximately)? Just curious. BTW, freaking great video!

@pauldenisowski

11 ай бұрын

Thanks! That's the Z-g-Diagraph, the world's first network analyzer, which was developed by R&S in the 1950s.

What about wavelength? For example, If i'm trying to solve for a cable of certain length...

@pauldenisowski

2 жыл бұрын

There are LOTS of things you can do with the Smith chart. I'm planning future videos on topics like the one you mentioned.

👍

@pauldenisowski

4 жыл бұрын

Dzięki !

Thank you very much. Is there a PDF of this presentation?

@pauldenisowski

5 ай бұрын

Thanks! A whitepaper version is under development.

Baller video, pat yourself on the back you beautiful bastard!

That’s crazy but what are we going to need this for in life ?

@pauldenisowski

2 жыл бұрын

Well, if you are an RF engineer, you might use it fairly often. In any other field, maybe not so much :)

Is Z0 the same thing as the characteristic impedance? Just trying to make sense of it in terms of my class

@pauldenisowski

3 жыл бұрын

Yes, Z0 is the characteristic impedance and ZL is the load impedance. In many RF systems, Z0 is 50 ohms and our goal is often to find a way to make the (variable, frequency-dependent) load impedance ZL "match" the characteristic or source impedance Z0 at a given frequency or over a given range of frequencies.

NICE video to start to learn something for me new. i have a question please . in my LDMOS mrf6vp11kh i found included on data sheet the smith chart with this value Zload 4.6+j1.85 . what does it mean ? the characteristic output impedance? how can i understand this value better?

@pauldenisowski

3 жыл бұрын

Assuming I'm looking at the same datasheet: there are two values given (plotted as points on the Smith Chart), one for Zsource (gate to gate impedance of test circuit) and one for Zload (drain to drain impedance of the test circuit). These are plotted as points, not lines, since they are the impedance values at a single frequency (130 MHz). Both impedances are complex, with a real (resistive) part and an imaginary (reactive) part. In order to maximize the power transfer (and reduce reflections, VSWR), complex impedances should be "matched" by having the impedance on "the other end" being the complex conjugate (i.e. reverse the sign of the imaginary part). So in the datasheet, the complex Zload impedance at 130 MHz is 4.6 + j1.85, which would be matched by having an impedance of 4.6 - j1.85 on the other end. This information can be used to select appropriate values of capacitance when designing the input and output matching networks. Hope that helps!

@lucaacul853

3 жыл бұрын

@@pauldenisowski many thanks