Ham Radio 40/80 Meter Inverted V Dipole Antenna




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Did this video help you?

rzimmer1: awesome videos thanks for sharing. i have a question to ask if you can help me. i want to get a shortwave radio and wanted to know what kind of antenna that can be made to cover most bands in general. any help to me making my own antenna that would be great. i liked and subbed oh i wanted to tell you i am limited to a lot of space.

W3LDR: I got my ticket Oct 2013 now I am a Extra Class however this was one of the first antennas I built from Daves youtube videos. My SWRs are flat on 40 and 80 and I get excellent reports on both bands all the time at about 35ft in the air.

Keith Rodgers: Great Video.. Like all Ham's you just had to talk about the WEATHER! Damn! 73 Keith

Vince Loschiavo: This would be good for how much power? 1KW? or just 100w? thanks de N2AIE

K9Handler521: Thank you for the video, greetings from New York- KB2GQZ 

Richard Lawn: I followed your helpful construction video exactly and the antenna works perfectly!! Kudos! Now I'm wondering if I can add a 17 meter element? I have a feeling that since it doesn't fall as a harmonic it won't work well. -Rick w2JAZ

ColonelK0rn1: Those are amazing SWR's right out of the workshop!

James Lollar: Dave, you do a great job of making videos of your efforts. It is very helpful to anyone interested in Amateur Radio Antenna's. Keep up the good work. A lot of people who post assume people watching on you tube have as much antenna knowledge as they do. Not so all the time. You can impart your know how without talking down to us Amateurs. Thanks a lot you have really helped me. James k5gkr

Luiz C Balista: Dave, I do appreciate your technisc for making coils. From now on I will save time and improve my coils. Tnks and 73. PY2CN

JillmanVideo: Plasti-Dip is also great to coat the coils with.

WX9DX: How did ya do with the DX window? :)

JORGE LOPEZ CANALES: BUEN PROYECTO , FELICIDADES 

Mike Erstad: Dave, What the heck is all that noise outside... Sounds like locust attacking.... Hey, fantastic job on all your videos. 

Kenneth Burdick: very detailed good work' 73 Ken KB5T

Crewdog77: Dave, you have the best instructional videos going. thank you for putting the effort into it step by step. I have learned so much from you.

Peter Villette: Great Video Dave, But love the tunes with it lol. Keep the great work up 

zaperfan: Great job whats the power handling ? of that wonderful antenna

N0JRJ's Ham Stew: Very, very good. I always enjoy your videos and I ALWAYS learn a lot. 73! George, N0JRJ

jasomeeko: hi dave these vids are great i am looking around for some old radios and collecting stuff for a antenna .very helpful and detailed.thank you

Dave Tadlock: @N6WK This coil is really designed to be used lower in frequency. Try taking one turn off the coil then check the antenna again. It might take removing a couple of turns to get it resonate. I should do a another video for an antenna that works higher in frequency on 80. I'll probably call it the "Breakfast Club Special," hi hi. YouTube is a world wide audience and so this antenna would appeal to many as it is. I also work lower in frequency and my phone limit is no lower than 3.600.

Marshall Jackson, Jr.: Thanks Dave for giving me back my confidence after a few failed projects that cost me good money. Thanks Man: I've got the "Bull" by the horns now..

ON4AEM: Very interesting Dave.Educational indeed.Enjoyed watching this video.Even in metrical sizes ;-) TNX Regards, Wim.

Dave Tadlock: Yes! :) Diagrams and pictures are posted on my website. The link is at the top of my YouTube channel and at the end of this video. Thanks for watching and 73!

Kevin Burke: Thanks for a great video. Very informative.. 73 de ve1kev

Dave Tadlock: @N6WK Add w w w to the beginning of it. YouTube will not let me post the actual link. I've also added a link to it on the 40/80 antenna project page on my web site. The other page is mostly pictures but you can probably email the original author, too. The link to my web site is posted on my YouTube Channel.

N6WK: @zerozedzed Bad LINK. Sorry !

N6WK: @zerozedzed I took it down today and inspected everything. I checked all the hardware on the coils and ohmed the coils for continuity. I then brought them into the shack and measured their inductance. Each one shows 129uh. Great readings on 40 but when I try to shorten the 80 wire to get it into the phone band, Things go crazy. I am shortening only ONE inch at a time to be careful. The MFJ shows the frequency moving up but unfortunately, the SWR is rising and the X is rising.

Daniel Fargo: You know that the MFJ 259B can also be used to measure coil inductance? Ham Fest coil finds that they will not tell you about measure them. Dan KB3EMH

Fred Shead: Hi Dave, are the specifications for the 7 meg traps same for inverted V as they are for a normal Dipole? Fred in England.

stian: TNX for inspire me :) have just started on the dipole, keep up the good work!. 73 de LA8KRA

eGliderman: Thanks Dave for your quick response! Sorry, I used your first name. I should have listened to the beginning of the video because you intro yourself as Dave. I'll give those specs a try and let you know the results. Thanks for your help and keep up the great work! Very good details! Gary K2DG Arlington, TX

urbex2007: OOPS! clicked on the wrong person to reply to !!!! It's the heat, in some parts of the UK it reached 30c which is double what it usually is here. No rain is a novelty too.

stian: AWG

CT2KIU: Hi there, i´m trying this antenna, tuned th 40 meters and when i install the coil, excelente for the 40. how can i tune the 80meters?? thanks in advance. P.S. i need a rapid help if you please, cause i'm bilding this antenna to use in Jota/Joti in the next weekend.

N6WK: @zerozedzed Can't seem to find that Website even whenconverting the (dot) to dot

Dave Tadlock: @N6WK In the video I coat the coils with clear polyurethane to help protect the coils. Sometimes the polyurethane will leak past the masking tape and may cause a short or a poor connection. Also, remove the nuts and flat washers from the coils to inspect the magnet wire as a break may be hidden under a flat washer.

stian: Nice antenna, but how much watt can you run on it? 73 LA8KRA

N6WK: @zerozedzed That link does not work and yes, I converted the )dot) to .

Dave Tadlock: Make 40 meters 6 inches longer on each side, try 84 turns on the coil, then experiment with the 80 meter wire sections. This should bring down both bands. :)

bud prepper: can you explain ladderline vs coax for feedline? thnx

EQ2CQCQ: What about making it resonate at 3.918. We have a local net here and I would like to have it resonate at 3.918 on 80/75m and also resonate at 7.248 - 7.250 om 40m where I run/check into nets. Tnx in advanced for the info and a great looking antenna!

w9gb: White PVC used in water/sewer connections does not handle UV (sunlight) well, it does yellow & breakdown.

Dave Tadlock: @N6WK Here is a link to another version tuned for 3.875: qsl(dot)net/ash_ares/new_page_7(dot)htm and more info on the ASH ARES page.

Andrés Pérez Pérez: Great video, i´m thinking about doing that antenna for my shack! 73´s from EA1IFF

Marshall Jackson, Jr.: I see in the video that you used 78 turns of # 18 gaguge wire on a 1-1/2 dia. coil form. What is the difference in the number of turns if I use #16 gaguge wire on an 1-1/2 dia. coil form?

David Kaplan: Dave, Great video! Really great instruction. I Love to make antennas .. just finishing a 6M portable Yagi myself . 73 David, KJ6GLX

Dave Tadlock: @N6WK BTW, I'm running 800 watts and have not yet had a problem.

Jorah Lavin: @zerozedzed thanks for the reply. I hope to have my tech ticket later this year, and you can count on my return visit to your site and to see your videos. I've already shared this one with my "hams" circle on Google Plus.

Dave Tadlock: @N6WK The 1" loop is for additional capacitance and will lower the SWR by .1

N6WK: Dave, I built this Inverted Vee yesterday. Had it resonant on 40 at 7.175 SWR 1:1 X=2 on 80 I was resonant at 3.845 , SWR 1:1 and X=2 ... However, today, 40 is still at the same spot, SWR and X are the same for 40, but 80 now is sort of resonant at 3.900 SWR is 2:1 and the X=18. I have triple checked the coils but don't see any problem. How much power should these coils handle? I guess I need to unwind and rewind them because something changed over night. Any ideas?
Rating:
Ham Radio 40/80 Meter Inverted V Dipole Antenna 4.7 out of 5

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Ham Radio 40/80 Meter Inverted V Dipole Antenna