steve c: Dave, when you put the end of the orange wire through the eye bolt then
wind it around 5 turns doesn't that create a coil that changes the tuning
of the antenna? Wouldn't it be better to connect the black wire from the
connector to the straight part of the orange wire outside of the eye bolt
to avoid the 5 turn coil at the end? Or maybe just loop the orange wire
through the eye bolt and solder or clamp it together without winding any
turns at all?
rlrsk8r1: Great (pair of) videos. I'm looking to make a more modular antenna
structure where the center feed point can be used with multiple "sets" of
elements, either swapping them out, or doing a non-parallel fan or an
umbrella inverted V. This is a pretty good place to start.
Grant Fullen: Thanks for this video. Great JOB . Very informative.
Bob Goyetche: Enjoyed this one a lot, very informative - thanks for doing this.. 73 de
Kelley Shiveley: Another great video, Dave
chalemi: What an awesome video! Nice job. I have a question about wavelength. The
wavelength pertains to the antenna length...does it also apply to the
height? in other words a 1/4 wave cut for 40 meters is appx 32.8 ft-should
the antenna also be at 32 ft?
Hein Krohne: great video dave, thanks.
Jeff Jefferson: He Dave, first of all i like to say that i really like your videos.
But watching this video, left me with some questions.
I want to build an inverted v antenna, now ive looked into them for a bit.
What i saw was that there are ferrite beads that can be put on the coax
where the antenna ends and the coax starts.
Will ferrite beads be good to add to this antenna? Or will it not be to
much to bother about? I've red that it improves the signal by filtering out
all the higher frequenties.
My next question is: Can i use stranded wire for an antenna? Are there any
pros or cons? Im looking to use stranded wire, because it needs to be
packed into a backpack. And i dont want to bother with solidwire so much,
because of bending/breaking, and having to straiten it out.
Hope you can help me out.
Frederik Veeneman: this is already a old movie but i really like it
I just bought my first HF trx and expect it to arrive this weekend , but i
never made an HF antenna before , so was doing some research on how to
actually do that
Thanks for sharing your experience
73' De PA4V
Dmitriy H.: Hi, Dave! Tnx for your videos! You are good teacher.
73's to Kansas from Siberia!
tu de RV9MD ee
Joe Esposito: Hi Dave like your video you have any suggestions on a short 40meter dipole
for limited space?
roman7296: Excellent, this help me a lot. Thanks KS4BJ
Vasile Pop: Congratulations!
73 de VA6POP
TimTools99: Hey Dave, I made one of your connectors today and just finished the
antenna. I have to order some coax and get this thing up on the tower!
Having a ball. Thanks again for your help. 73s
VerifyHistory: thanks for the detailed video!
edward gomez: Where can i get the solid wire you are using, my e mail is
Johnny Valdes: can I used this antenna on 27.205 Mhz?
fishhead fishmouthe: i understand now. thanks, jeff KK4FXJ
Dave Tadlock: @aka572 Yes, it's the contest exchange. Delta class are home stations on
commercial power. Alpha class stations are club portable stations.
scotjohn67: Hello Dave de KE4ELF Great video, very informative. You weren't kidding
when you said you had a surprise. When you made contact with W4AM, my old
club, I almost fell out of my seat. Anyway, thanks again for the great
videos. 73's de KE4ELF
Jim Cameron: I have the same rig for HF I love it great radio
iam he: Nice job Dave, very well done.
Jeff Chancey: how close is too close? =)
vetham100: Dave, thank you so much. This will be perfect for field day 2013 :) I
always enjoy your videos, they are very informative. 73 VE3QJ
Dave Tadlock: They can still interact with each other if they are too close together.
Even though they are running in different directions, they are both still
horizontally polarized. Space them as for apart as possible. Thanks for
watching and 73! :)
Dave Tadlock: @Jackupnow The wire will most likely be less expensive to purchase in your
country rather than to have it imported. Search for 14-1 solid PE. More
details on my Facebook page as someone else asked, too. My web site and
Facebook links are posted on my YouTube channel. 73! :)
grounded1943: Hi Dave how can just moving the insulator be the same as cutting the wire
to a shorterr length? What am I missing?
Alan Spicer: Maybe I can take it down ... check the length of the 2 elements and remove
that balun and just make a feed point and fix it. I was able to load that
wire up with an MFJ roller inductor tuner and put an AL-811 amp into it ...
but it was never truly reasonant anywhere near 80 meters.
Dave Tadlock: Please note: The height of the ends of the antenna above the ground looked
different through the camcorder lens and is instead about 10' instead of
15'-20' as mentioned in the video.
Jackupnow: Thanks Dave some hams here asked about the balun now I can give them your
reply also where can I get the 14 gauge wire from in the U S A as here in
Australia we don't stock it any more only multi strand thanks again
Dave Tadlock: You can use the larger caps and plugs but they will be a bit large. You can
also use two caps and a section of PVC pipe. With the 1-1/4" caps you'll
want to take an SO-239 connector with you while shopping to make sure that
it fits as some caps are made with a thicker wall. Also, some guys mount
the SO-239 on the outside of a flat cap if doesn't fit on the inside. Check
my website for the feed-point connector parts kit. Thanks for watching and
grounded1943: Hi Dave How can moving the insulator on the inverted v antenna be the same
as cutting the wire to the proper length for the lowest vswr at the
mwiz100: Really, really useful video dude! I'm still just going on my tech class
license but I've been looking into HF and wondering for awhile how one
properly sets up and tunes a wire dipole/invert V like this. Thanks for the
extended detail of the full setup and tuning process. Helped me get a good
handle on the final steps!
Dave Tadlock: If you have the space try making the 40/80/160m antenna. The tri-band
antenna is easier to tune than the 40/80m antenna as it should not require
any modifications to the coils. Please visit my website for more
information about both antennas. If you have questions then please click
the link on my website to my Facebook page. Questions, antenna photos, etc.
can be posted on my Facebook page. Thanks for watching and good DX! :)
Joe Sheets: Dave, Wow! excellent videos! You have taught me so much in the last few
days since I found your channel. I have subscribed. I was wondering if you
have done any propagation wave modeling on the 40/80 or 40 inverted V? (ie
EZNEC). Do they tend to omni-directional? I live on an acre, but it is
wooded so I am trying to find out the best location to put the antenna to
give me the most options. Thanks, Joe KJ4LZM
Bob McClard: Great job and thanks for including the FD operation at the end... nice
antenna. You show that careful tuning can make a big difference in the
Andrej Lebedev: Thank you !!! 73!
WX9DX: Thanks for another great Ham Radio Video! Way cool! Catch ya on MidCars! :)
Jimmy, ARRL TC, WX9DX
nasanction: Your video's have been most informative! I plan on a CB Inverted V Dipole
11 meter full wave. Your in depth details has given me the confidence to
try this antenna. Any suggestions on the 11 meter would be appreciated.
Also what is the purpose of the coil addition to the dipole antenna? Thanks
to you I can make one, but I have no idea what it is used for. Homestead
CB'er slipping into the HAM dimension...
tommy aussie: Great video Dave. could i use this design for 11 meters and do you know
what the frequency is for 11 meters. i would have to change my measurements
Dave Tadlock: @Jackupnow If the feed-point impedance is 50 ohms then you have "maximum
transfer of power" to the antenna and there is no RF feeding back down the
coax. We use a balun in a horizontal dipole to achieve 50 ohms. The
inverted V with the elements adjusted properly will already have a
feed-point impedance of 50 ohms without a balun and there is no need for an
RF choke. Please see my video Dipole and Inverted V Antenna Basics for more
information. Thanks and 73.
VerifyHistory: I can't tell if you are shortening both sides of the antenna each time? Or
just 1 side at a time?
Dave Tadlock: Recently someone mentioned to me that a dipole antenna, one of the most
efficient antennas, may only be 98% efficient. Meaning even with maximum
transfer of power to the antenna there may still be a very small amount of
RF coming back down the coax cable. This small amount of reflected power
should not be enough RF to cause any real problems.
Boston Bostonian: I need the best AM long distance reception antenna, indoors or outdoors. I
need Orange County (90 miles), LA (120 miles) & San Francisco (500 miles,
and further if possible). I believe what I need needs to be directional
such as that which is described in this video (or a similar outdoor unit
that I can also move around) ... I'm looking for a SERIOUS antenna, not my
own science experiment. I am a paying client. Do you have a phone number
or? I'm looking for the best long distance antenna
TimTools99: Thank you very much for your fine video. You are a great teacher and also
your video work is excellent. I just appreciate the time and effort you put
into your lessons. They have helped me a lot! P.S. I have never owned an
antenna analyzer but I want one now! 73's N2RGT
userfixit: Dave, thanks for all the informative information and the huge effort you
put into your Video's. I especially enjoy all the step by step detail and
clear video for each detail. I know this is a lot of work and very time
consuming. All in all everyone will have a clear understanding of what
needs to be done. I especially benefited from your Modified TV antenna
video's. Real cost conservative and very strong mechanical method. I have
been a Ham since 1967 and always learning. -Bob KQ2Q
Dave Tadlock: @VerifyHistory You always adjust both sides. The lengths of the antenna
elements must always be equal. ;)
SWLDXBulgaria: Beverage antenna is the answer... But it requires a lot of room.
aka572: Great video and very informative. I'm curious about the meaning of the "one
delta kansas" that you gave each of your contacts. I'm guessing it has
something to do with the contest.
Franco Cecchetti: i miei complimenti,veramente bravo.