Excellent coverage of the topic.  Your channel has become a valued resource.  Thanks for your effort!

Another outstanding video, Tim. You do such a wonderful job of explaining the theory and science, and showing real world examples. Great work.

Man I learned a ton from this video! Thanks for sharing the info. 👍

Truly appreciate the time and effort you devoted to create this video.  Your explanations are logical and well-reasoned, and I value the contributions you offer to the ham radio community.  

‘73

K3SDM

Your channel is one the best ones on youtube for theory and practical application of antennas, thank you!

I’ve heard Rybakov pronounced as “roo-buh-kohv,” since it’s originally Russian for Fisherman, I believe.

Anywho, thank you for this video. It’s practical and easy to understand. You put things together succinctly and make it seem elementary for us newer hams. Greatly appreciated! ❤ - KF0QNM

I had no idea that Antenna Resistance was like Cholesterol; with both good and bad types! Well done Tim!

I really enjoy your video’s. Always packed with great content that breaks down the technical side for anyone to understand. Even though I’m an Extra class, I still learn something new from each of your video’s.
73!

Haha...love the T shirt!

Tim, I love your great YouTube videos! The well-planned information is presented clearly, logically, in easy-to-understand steps with good illustrations and narration.  I want to share 2 things: 1) When I make a 9:1 toroidal unun, I make a connection between the 2nd and 3rd winding up from the ground end via a switch or an added external terminal. This adds a 4:1 ratio, making 2 ununs out of one. 'Works with a commercially-made 9:1 unun, too. 2) Up to 5:1 SWR on my short coax feedline (usually 20ft or less) in a field setup doesn't worry me due to the low natural and mismatch losses in such a short run, so long as I have a capable tuner at the rig.

These are always great videos!!!! You put allot of work into your research for us hams, thank you!!!

Thanks, Tim, for another informative and helpful video! I’m definitely going to try to build the Challenger. Hope to get you in the log again soon. 73! Robert

Great work Tim ! Clear and efficient explanation, now I know which is the best portable antenna for me to build.

Brilliant!👏🇮🇪

Excellent!

Outstanding Tim.  This was an excellent explanation of Rr / R-loss and you provided all the details.  The radiation patterns were spot on.  👍73 OM

Great video and breakdown of the pros and cons for each.

Great content explained in an amazing way, clearly and concisely. You’re a great communicator, my best congratulations. 73, Diego

2:27 Thanks for explaining that! I used to think "Oh if I got good SWR, I'm getting out!" Without knowing my signal may barely be radiating the way I want.

Another great video, thanks Tim!