Vince Loschiavo: This would be good for how much power? 1KW? or just 100w?
K9Handler521: Thank you for the video, greetings from New York- KB2GQZ
ColonelK0rn1: Those are amazing SWR's right out of the workshop!
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.
JillmanVideo: Plasti-Dip is also great to coat the coils with.
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
Mike Erstad: Dave,
What the heck is all that noise outside... Sounds like locust attacking....
Hey, fantastic job on all your videos.
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
Kenneth Burdick: very detailed good work'
73 Ken KB5T
Peter Villette: Dave what is the Wire Dia in mm? Because over in the UK the Wire Sizes are
very different. Many Thanks 2E0PTP
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.
zaperfan: Great job whats the power handling ? of that wonderful antenna
Jeffery Brown: As I am only a General, how is the SWR between 3.850 to 4.000?
Peter Villette: Great Video Dave, But love the tunes with it lol. Keep the great work up
hossy court: Very we'll done
N0JRJ's Ham Stew: Very, very good. I always enjoy your videos and I ALWAYS learn a lot. 73!
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
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
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.
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)
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
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
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?
Donn Hilton: Dave, the shorter the antenna the narrower the bandwidth, or so it seems.
What would happen if you made the wire sections caged sections instead.
Would we regain some of that bandwidth? That would be an interesting
experiment, especially to have a shortened antenna with some of the extra
bandwidth. I just taught some ham students to build a simple droopy ground
plane antenna and showed them the same thing with a caged stinger. The
bandwidth was lovely and wide.
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
Ham Radio 40/80 Meter Inverted V Dipole Antenna4.7
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