Thank you so very much! You're that patient teacher I always wished I had when I was a kid with a hunger for learning such things. Now decades later I've finally found my teacher and I feel like I'm re-igniting some long forgotten fascination with this world of things---forgotten and left behind in frustration.
I'm glad he is out here two. I have a general ticket and have played around with antenna since i was a kid. but i did not think that I could kill some one because of not thinking. and that I wanted my antenna to work from east to west. and dave used several big words that the meaning did not compute in my mind. Yes there is a lot that is not taught.
As always, Dave has a way of explaining the complex to a guy like me so that I can understand. Thanks, Dave! I'm taking on the Extra exam and using the ARRL study guide as my text. But, I always come running to this channel to get the classroom version which makes it all clearer.
Superb David, I taught the RAE here in the UK using many of the tips of explanation found in your video series. 73 de John Allsopp G4YDM Washington,(Ancestral Home George Washington) North East England. Stay safe and well in the U.S.A.
Good afternoon Professor Casler! I am studying about antennas and radar by myself applied to remote sensing. Yours teaching and explations are so clear and high quality! Congratulatiobs!👏🏾👏🏾👏🏾👏🏾 "The man is eternal when your job is continuous! God bless you and have a Merry Christmans, for you and your Family! Jacareí- São Paulo-Brasil.
I would like to design my own antenna for a Radar receiver!. Outstanding Lecture!!! My first introduction to Antenna Design. I started reading a textbook on Antenna. This video is superb and really summarized with all details. Thank you, sir!
Thank you sir. This is the best explanation of antenna patterns I have ever watched. Very intuitive description , superb presentation and indeed accurate.
I subscribed after watching one video. You're up there with w2aew when it comes to explaining this sort of stuff. It's also so much that I can't learn it all from watching a single video a single time.
My old TV's antenna is a piece of electric wire hanging from it... It may not be the best, but man this things are easy to make... Great video by the way! Very informative.
OMG I love this guy!!! I wish I would have had him as a teacher when I was in school, I'd probably be an engineer rather than an electrician!!!!!! SUBSCRIBED
This is by far the best explanation of antennas I have ever come across. I've learned more from this video than in countless hours of browsing the web. Thank you!! May I suggest adding the topics covered to the video description to help others find this amazing video?
There are myriad ways to screw up the use of "myriad"....kudos to you, David, for knowing how to use the word correctly. Oh, and BTW, just an exceptional video on a very difficult (for me) topic. Thanks!
Thanks a lot for making and posting these lessons. I've just got my ham radio licence back and there's a lot I have to remember before I resume operations. I still have to decide which antenna suits me better. At first, I thought of an inverted v dipole, than I thought about a long wire. But since, I like dxing a lot, I may want to build a delta loop antenna. 73 from PY5WHO/PY5136SWL
Thank you very much for these videos. I know it took a LOT of time and energy to produce. This video helped me understand antenna gain better. 73 KK4VYS
Excellent contents and a gentleman as a presenter. There is many hours of preparation for such a video. The priority points are mentioned and his experience does admit that practical performances are not always as theory stated, His best statement concluded from his experience is ," Everything can affect the performance of the antenna." My congratulations on your presentation and experience.
Love your videos and how you present the material. I always learn something new. However, you've probably never been to Western Nebraska as it is NOT flat. Once you get past North Platte, you're rising in elevation and the hills become more apparent.
Improve your antenna before investing in an amplifier = WRONG!! The correct way is to invest in whichever one presents the sweet deal first. Get the other one later. Great video btw!! I learned a lot from this one!
Might be "obsolete" as far as the current HAM radio exam. Certainly NOT obsolete in regards to real life learning. Outstanding presentation. Wish I knew which "book" he's refrencing.
Hey there Dave! Thanks for you & all the other You Tube University professors. My extra class status posted to the FCC data base, last week, or the week before. I managed to sail through the Technician & General, mainly from repairing AF & RF stuff for the past, uhhhhhhmm, erm, eh, carry the, and add the, uhm, wow. Let's just not go there. Anyway, thanks for explaining why a dipole does what it does & how the test got their figures. My QTH in between two AM stations, that tend to wreak havoc with everything. Antenna types I was never bothered by, were/are one of my weak areas. I am up in Colorado now, again and will be headed out your way soon. Who knows? Maybe? I generally drive & I don't even like even using a cell phone, while doing so. 73 KI7AQJ
Now I understand why there seems to be so much experimentation with antennas. I have LOS from my mailbox 600 yards to my workplace through a closed window. Being a run down rural road. I'm going to build a disk Yagi and mount it inside a newspaper tube aimed down the street. :)
Some people think that you should use a certain length of coax between your radio and swr meter when adjusting your antenna. What are your thoughts? Thank you. Larry
What is the best type of antenna to use if i want the main lobe to be a cone with maximum gain around the axis in the centre? I want a drone to to follow the maximum signal strength, in other words, the drone should always be going towards the central axis in the middle of the main lobe.
Thank you for giving an execelnt idea about antena.... It will be very helpfull if u tell something details on rectangual microstrip array of antena.... Thank You :)
+Sayantan Barik The antenna videos are aimed at HF and VHF, with emphasis on HF (up to 30 MHz). I have no experience with microwave antennas, but am aware that they're very interesting. I suggest searching both Google and the technical literature. 73, Dave
What is the relationship between receiving antenna configuration and transmitting antenna configuration for shortwave radio frequencies? My impression is that reception is less precise than transmission, and the most important characteristic is height. I want to try a weather ballon just under 500 ft with a 1/2 or 1/4 wave antenna out of a rigid material in a horizontal mode. Compass heading may have to be magnetic, ie, north- south. I’m a ME by education and practice. Be kind.
This story might help some people understand radiation resistance: Back about the turn of the twentieth century a young patent clerk was trying to understand why antennas generated far fields. Applying Maxwell's Equations generated a near field, but no far field. After pondering the problem, he discarded everything everyone knew about physics and invented Special Relativity to solve the problem. It turns out that accelerating charges changes their inertial reference frame and causes them to emit photons. One way of understanding antennas is to see them as guides to accelerating electrons so the photons they emit go in the directions you want. But rather than teach every HAM radio guy Special Relativity, they started teaching "Radiation Resistance" instead. That worked for a long time, and Electrical Engineers forgot the physics behind their craft. But it's a nice tidbit to know, even if it's not that practical.
24:34 Dave - your antenna must not be that bad! I heard you via my 20m dipole clear as day in N. Al last night talking to a station in HI on 20m - W5CSW
+soloban81 Indeed! I was talking with KH6CB at the time on 14,290 kHz on the 20 meter band. I often hang out somewhere near that frequency--perhaps I'll catch your CQ! 73, Dave, KEØOG
What do the new satellites looking at the edges of the universe use for a radiation pattern. It must be extremely focused because signal strengths are not in the megs watts.
Thank you for helping me pass my Amateur Extra Class exam! I passed with a 86% Monday evening and your videos helped me understand the concepts!!! KN4MJE
I do have a question: what is the inportance of: R, R2, C, C2, Z, and Z2 in a broadcast fm antenna, most of the Engeeniring look for SWR, and dont care about the anterior measurements (R, R2, C, C2, Z, ad Z2)
The technician videos are now available learn.ARRL.org. All of my training videos are moving to the league website. If you want to see the technician website, go to KE0OG.net/training. They are all listed there. The general videos are in process of being moved to be hosted by the ARRL.
Thank you so very much! You're that patient teacher I always wished I had when I was a kid with a hunger for learning such things. Now decades later I've finally found my teacher and I feel like I'm re-igniting some long forgotten fascination with this world of things---forgotten and left behind in frustration.
I have a bachelors degree in EE and this is incredibly helpful. This sort of teaching is absent in formal education these days. Thank you.
Thank you
I'm glad he is out here two. I have a general ticket and have played around with antenna since i was a kid. but i did not think that I could kill some one because of not thinking. and that I wanted my antenna to work from east to west. and dave used several big words that the meaning did not compute in my mind. Yes there is a lot that is not taught.
How do they teach this then? I didnt go to school so id have assumed this is how its taught
As always, Dave has a way of explaining the complex to a guy like me so that I can understand. Thanks, Dave! I'm taking on the Extra exam and using the ARRL study guide as my text. But, I always come running to this channel to get the classroom version which makes it all clearer.
Dave, you do an amazing job explaining all this stuff. Spent many hours listening to you. THANK YOU.
I sure do wish I had these videos when I studied for my licenses! What a great refresher!
Very informative. And it is so rare to hear someone so articulate. Thanks! 73 from India. This is VU3BQY.
I really appreciate the way the topic is presented and superbly explained.. Thanks a lot Mr. Casler.!
+SRINIVAS MALLAREDDYPETA You're welcome!
Thank you from the bottom of my heart for this video. You made the pages in my manual come to life!
Thanks for having both thorough knowledge, and rock-solid presentation skills. You rock!
Superb David, I taught the RAE here in the UK using many of the tips of explanation found in your video series. 73 de John Allsopp G4YDM Washington,(Ancestral Home George Washington) North East England. Stay safe and well in the U.S.A.
Thank you Dave, great explanation. So much beneficial for me to understand the topic.
Thank you sir, I wish I had courses thought by people like you.
Good afternoon Professor Casler! I am studying about antennas and radar by myself applied to remote sensing. Yours teaching and explations are so clear and high quality! Congratulatiobs!👏🏾👏🏾👏🏾👏🏾 "The man is eternal when your job is continuous! God bless you and have a Merry Christmans, for you and your Family! Jacareí- São Paulo-Brasil.
I would like to design my own antenna for a Radar receiver!. Outstanding Lecture!!! My first introduction to Antenna Design. I started reading a textbook on Antenna. This video is superb and really summarized with all details. Thank you, sir!
Thank you sir. This is the best explanation of antenna patterns I have ever watched. Very intuitive description , superb presentation and indeed accurate.
David - I have thoroughly enjoyed your instructional videos in preparation for my advancement to Extra Class license. 73's
Great review, Dave, even after playing with wire in the air and antenna building for the past 5 years.
Great video, thanks for putting it together. I look forward to checking out more of your videos
I subscribed after watching one video. You're up there with w2aew when it comes to explaining this sort of stuff. It's also so much that I can't learn it all from watching a single video a single time.
Brilliant! You're an excellent teacher, thanks!
Best ever explanation of antena. Thank yo, you are great, talented teacher.
Most useful and understandable Antenna explanation I have heard. Thank you sir, remain blessed.
You sir are one fine teacher. Thanks for the video.
If I put a vertical on top of a steel shop building, will it need radials?
Studying for my Extra, thank goodness for your channel! Thank You!
My old TV's antenna is a piece of electric wire hanging from it... It may not be the best, but man this things are easy to make... Great video by the way! Very informative.
Excellent presentation! Very very well done! Bravo to you!
Sir you're good!! Thanks for your contributions, this is S21TB, 73
+Ahmad Sayem You're welcome!
OMG I love this guy!!! I wish I would have had him as a teacher when I was in school, I'd probably be an engineer rather than an electrician!!!!!! SUBSCRIBED
})FÚ
Never to late.
Excellent instruction. Thanks.
Mr. David, thanks to you i know more about RF
fantastic video. Thank you for sharing a lot of beneficial information
David, U R STILL THE ONE !!!
Thank you so much for your lessons !
Alex
ki6eeo You're welcome!
This is by far the best explanation of antennas I have ever come across. I've learned more from this video than in countless hours of browsing the web. Thank you!!
May I suggest adding the topics covered to the video description to help others find this amazing video?
Mark, thanks for the suggestion. I've updated the video description. 73, Dave
There are myriad ways to screw up the use of "myriad"....kudos to you, David, for knowing how to use the word correctly. Oh, and BTW, just an exceptional video on a very difficult (for me) topic. Thanks!
Thanks a lot for making and posting these lessons. I've just got my ham radio licence back and there's a lot I have to remember before I resume operations. I still have to decide which antenna suits me better. At first, I thought of an inverted v dipole, than I thought about a long wire. But since, I like dxing a lot, I may want to build a delta loop antenna. 73 from PY5WHO/PY5136SWL
Thank you very much for these videos. I know it took a LOT of time and energy to produce. This video helped me understand antenna gain better. 73 KK4VYS
Thank you Sir! You just made me a better engineer :)
Great presentation. Thank you for your time.
Wow, this is a very good explanation. Thanks, Dave!
Thank you, these are very helpful.
GREAT Video ! Thank you! Better than a paid-for University Class...
exactly the video i needed! thanks Sir!
Excellent contents and a gentleman as a presenter. There is many hours of preparation for such a video. The priority points are mentioned and his experience does admit that practical performances are not always as theory stated, His best statement concluded from his experience is ," Everything can affect the performance of the antenna." My congratulations on your presentation and experience.
Carmel Pule' Thank you
Great information. Getting close to my extra. Thank you
Thanks for this amazing video.
Thanks. Good post. I'm an antenna fanatic.
You are an excellent teacher. Very clear explanations of hard to grasp concepts.
Tyler Snowden Thank you!
thanks David very clear...
you're awesome i'll start watching your videos from the begining keep it on going plus i subscribed (;
Extremely good!
You are a rock star teacher!
Thank you for the excellent video OM! 73 de AC6GM!
Love your videos and how you present the material. I always learn something new. However, you've probably never been to Western Nebraska as it is NOT flat. Once you get past North Platte, you're rising in elevation and the hills become more apparent.
Wow Dave . Looking good!
Very informative, thank you. Now on to the not obsolete video, haha.
Great, I found your amateur extra videos and your general videos.
Good luck with your studies!
cool stuff...really been helpful....thumbs up
Sir , ve made it better to understand and develope
.thanks for the video
Improve your antenna before investing in an amplifier = WRONG!!
The correct way is to invest in whichever one presents the sweet deal first. Get the other one later.
Great video btw!! I learned a lot from this one!
Better antenna is almost always a good upgrade.
Might be "obsolete" as far as the current HAM radio exam. Certainly NOT obsolete in regards to real life learning. Outstanding presentation. Wish I knew which "book" he's refrencing.
He's referencing the ARRL Extra Class License book, this may be a little out of date but ~95% of the content hasn't changed much in the last 10 years.
Well done Dave.
Thank you for the video!
Thanks Dave!
Hey there Dave! Thanks for you & all the other You Tube University professors. My extra class status posted to the FCC data base, last week, or the week before. I managed to sail through the Technician & General, mainly from repairing AF & RF stuff for the past, uhhhhhhmm, erm, eh, carry the, and add the, uhm, wow. Let's just not go there. Anyway, thanks for explaining why a dipole does what it does & how the test got their figures. My QTH in between two AM stations, that tend to wreak havoc with everything. Antenna types I was never bothered by, were/are one of my weak areas. I am up in Colorado now, again and will be headed out your way soon. Who knows? Maybe? I generally drive & I don't even like even using a cell phone, while doing so. 73 KI7AQJ
+Seth B Congratulations on your upgrade!
Thanks Dave & 73 - great lecture.. VA3PDG
Thanx !!! great great help
Deep. Well done. Better than 5 yr degree programme.
Dave thank you , I passed my Extra yesterday
de KJ6CQC /AE
Dean McCollom Congratulations on your upgrade!
Very clear explanations.
Interesting.
Practical facts.
Great job !!!!!!
thank you, very good video!
It's very helpful .thanks sir
Fantastic video thank you
Now I understand why there seems to be so much experimentation with antennas. I have LOS from my mailbox 600 yards to my workplace through a closed window. Being a run down rural road. I'm going to build a disk Yagi and mount it inside a newspaper tube aimed down the street. :)
phenomenal lecture
Some people think that you should use a certain length of coax between your radio and swr meter when adjusting your antenna. What are your thoughts? Thank you. Larry
my god I almost understood I checked a few words and it's coming clearer thanks from don the welder
finished the whole vid mann nice
Thank you!
complex topic but well explained, i feel video needs to be watched multiple times to get better understanding....
Great David, thanks and good dx 'de IW2OBB
very clear ... thank
What is the best type of antenna to use if i want the main lobe to be a cone with maximum gain around the axis in the centre? I want a drone to to follow the maximum signal strength, in other words, the drone should always be going towards the central axis in the middle of the main lobe.
Thank you.
Thanks a lot :)
Thank you for giving an execelnt idea about antena.... It will be very helpfull if u tell something details on rectangual microstrip array of antena....
Thank You :)
+Sayantan Barik The antenna videos are aimed at HF and VHF, with emphasis on HF (up to 30 MHz). I have no experience with microwave antennas, but am aware that they're very interesting. I suggest searching both Google and the technical literature. 73, Dave
What is the relationship between receiving antenna configuration and transmitting antenna configuration for shortwave radio frequencies? My impression is that reception is less precise than transmission, and the most important characteristic is height. I want to try a weather ballon just under 500 ft with a 1/2 or 1/4 wave antenna out of a rigid material in a horizontal mode. Compass heading may have to be magnetic, ie, north- south. I’m a ME by education and practice. Be kind.
This story might help some people understand radiation resistance: Back about the turn of the twentieth century a young patent clerk was trying to understand why antennas generated far fields. Applying Maxwell's Equations generated a near field, but no far field. After pondering the problem, he discarded everything everyone knew about physics and invented Special Relativity to solve the problem.
It turns out that accelerating charges changes their inertial reference frame and causes them to emit photons. One way of understanding antennas is to see them as guides to accelerating electrons so the photons they emit go in the directions you want.
But rather than teach every HAM radio guy Special Relativity, they started teaching "Radiation Resistance" instead. That worked for a long time, and Electrical Engineers forgot the physics behind their craft. But it's a nice tidbit to know, even if it's not that practical.
Do you have a video where you explain this in terms of Earth specifically?
24:34 Dave - your antenna must not be that bad! I heard you via my 20m dipole clear as day in N. Al last night talking to a station in HI on 20m - W5CSW
+soloban81 Indeed! I was talking with KH6CB at the time on 14,290 kHz on the 20 meter band. I often hang out somewhere near that frequency--perhaps I'll catch your CQ! 73, Dave, KEØOG
+David Casler Yes it was that conversation. I was listening in and thought man his voice is familiar and then heard your call sign and it clicked.
+David Casler /ae as of tonight. Big thanks for the videos!
+soloban81 Congratulations on the upgrade! Perhaps we'll hook up on 20 or 40. 73, Dave, KEØOG
What do the new satellites looking at the edges of the universe use for a radiation pattern. It must be extremely focused because signal strengths are not in the megs watts.
what should be the radiation pattern of multiband antenna
Started a diy double cross antenna build for receiving satellite images and somehow ended up here in the weeds 😂
Thank you for helping me pass my Amateur Extra Class exam! I passed with a 86% Monday evening and your videos helped me understand the concepts!!! KN4MJE
Excellent!
I was listening to one of your videos and you said that you are a BYU graduate. So, am I.
Which is the best antenna to transmit and receive 915mhz frequency ?
Thank you
Amazin explanation
I do have a question: what is the inportance of: R, R2, C, C2, Z, and Z2 in a broadcast fm antenna, most of the Engeeniring look for SWR, and dont care about the anterior measurements (R, R2, C, C2, Z, ad Z2)
Great, glad I found you. Why did your video go obsolete? Do you have videos on the general license?
The technician videos are now available learn.ARRL.org. All of my training videos are moving to the league website. If you want to see the technician website, go to KE0OG.net/training. They are all listed there. The general videos are in process of being moved to be hosted by the ARRL.