Please send me the checklist

Why you speak fast. Slow down, so that your audience could understand what you are teaching.

Send me the checklist! Thanks!

send me the checklist `:-)

Send me the checklist

Hello Hans, very interesting! Yes, I would like to receive a link to your checklist book! Which VNA are you using? Can you recomend a not-so-expensive VNA for home-use? I am trying to add a slotted GPS antenna to a cat tracker, but the learning slope is long and high ;-) Thanks a lot, best regards, Jo

Apologize for my rookie question..when apply DC at the output of the amplifier ...why it is not damaging it although now it has two current opposing each other at input and output? Out of curiosity hope you can explain for me to understand

Send me the checklist 🙏

Please "send me the checklist", sir. This video is amazing!

If you want to achieve HiFi performance you have to design your circuit with RF rules in mind to. At the end - for every frequency from DC to GHz range you get a net of complex impedances that determine your performance (SNR). The real issue ist that those frequencies interact with each other due to non-linearities in the design and cause intermodulation. I have used e.g. exactly this effect to build an RF detector out of an audio opamp. Unless you and not intentionally seeking this effect you have to respect RF rules even if you design kW audio amp! Of course RF rules are not the only thing to respect to make this work - in order to get to the optimal design you have to have wholistic approach and consider everything - and, as always, at the end you get a compromise, because you cannot set all parameters at their most optimal range, but the trick is - the more you know and consider - the better you can steer this compromise to the goal you have set! In that respect Hans Rosenberg ist doing a really good job explaining all those details and giving vivid examples! Keep up the good work Hans - we are spreading the word!!!

Thank you for taking the time to make these videos! Cheers from Finland!

Hans, Thanks you for the great information. If possible I would like to have a copy of your checklist.

One interesting parameter to check would be return loss with different coupling capacitors. I wonder what you are actually seeing on 1GHz, the lower gain might be caused by worsening RL.

hello sir , is it possible do one video on power amplifier ?

Send me the checklist

Thanks for this great video, please send me the checklist :)

Please send me the checklist!

I am curious why you didn't use an LDO on the PCB. I would expect a good deal of noise added to the signal when powering from any switching supply, let alone a bench power supply. I don't know of an inexpensive way to measure noise figure (other than luck on eBay), but I wonder if your gain and compression measurements might even change if you repeated them using a lithium battery? Actually, if you have a variable attenuator, you could do a noise comparison (not measurement) by sticking this on a GPS receiver. See how high you can dial the attenuator before the receiver stops acquiring a cold fix. Then repeat, but using a battery as the power source.

I saw you on Robert Feranec's Channel. Incredible good Tutorials and easy to understand for me. Thank you so much! Also please send me the checklist. :-)

Hi! Send me the checklist! I have one, but would love to see yours

Nice theory, but I mostly use HF bands. 2 metre at the highest. At 2m, the tracks would need to twist like snakes to fit on a board.

You need a proper vna.

This is so very useful for me. Thanks for posting this Hans. DE N5BOC.

Hi Hans, I tried to send you an email to your address but it return undeliverable. Did you change address ?

Great video!!

Greetings Mr Hans! I'm wondering if you are reviewing the PCBs of your subscribers? If so I would gladly send you my very second PCB in the hope to give me some advice. And i wanted to note that your videos can't get any better. Thanks for your work!

thanks thanks hans another interesting video ❤

Hello, I am an IT student interested in programming, electronics and all it's aspects. I am sure you hear this often, but this 15-minute video taught me more than any lecture/lesson from a teacher at my high school. I would like to express my gratitude for sharing your knowledge. Since you've linked the checklist in the description, I thought I'd at least leave a comment for the youtube algorithm and to thank you.

When calculating S21 and S43, did you also account for the extra losses from the SMA connectors on the PCB? How much are those losses in your setup?

Thank you for the tutorial sir✌, can you make a tutorial on how to design wideband coupler?

quick english lesson... it is not coopled... it is cupled. it means to join.. like a couple of people... not a coople of people

Thank you.

Send me the check list please

Send me the checklist

Nice "coopler" tutorial. Thanks Hans 😁

I checked the geometry with the (free online) Sierra Circuits Impedance Calculator which claims to be a 2D Field solver. The numbers are very close. Without solder mask: C=0.0979, Zodd=45.21, Zeven=55.03 S11 to S14: -42.836 ∠ 110.64, -0.287 ∠ -89.07, -20.371 ∠ 1.04, -24.244 ∠ -179.7 With solder mask (parameters guessed): C=0.1000, Zodd=44.46, Zeven=54.34 S11 to S14: -34.881 ∠ 157.36, -0.291 ∠ -90.37, -20.191 ∠ 0.25, -24.58 ∠ -179.64

Awesome.

Sadly QUCS development is in such a sorry state. So much potential.

Thank you Mr Rosenberg

Send me the checklist please! And thank you

How is input and output stability accounted for in this design?

Could you send me the checklist Mr Rosenberg?

Hi, I'm a software developer getting into electronics and it's a ton of fun. I'm trying to build a 8 bit computer using sinple IC's for gates and transistors but i start getting strange "mistakes" in the logic and someone informed me that it might be that I need capacitors as I'm using too much power too quickly on certain parts. Can you make a video on nice rules of thumb to keep things powered? Maybe how to segment the sections in a way that keeps it simple. The wiring becomes a lot so any simplicity I gain is a win!

Send me the checklist

You should say you have to sign up to your community to get your "free" checklist. It might be a fantastic checklist. I don't know. The video was good. Don't like clickbait links which promise something, but then add another step. Can't trust them.

Send me the checklist