Tuning a Fan Dipole (

Рет қаралды 6,290

Жыл бұрын

Mike, KF0KKX, is a new trchnician class operator. He is working with his uncle to build an alpha delta in the 610 and 15m band. He is wanting me to double check that most of his information to build the antenna is correct. Watch to learn more.
Subscribe: / davecasler .
Giveaway Info: dcasler.com/giveaway/
Edited and Videographed by Aidan Jakeman
To learn more about me, visit: dcasler.com/home/
To support my channel financially: dcasler.com/support (offers several options)
To pose an Ask Dave question: www.dcasler.com/ask-dave/ or www.ke0og.net/ask-dave/
Theme music is "Sour Tennessee Red," by John Deley and the 41 Players, courtesy KZfaq Music Library. You can listen to the entire song here: • Sour Tennessee Red - J...
I use drawings from OpenClipArt.org, including the "walking man"
Technician training videos, see www.ke0og.net/training/
General training videos, see www.ke0og.net/general/
Amateur Extra training videos, see www.ke0og.net/extra/
Thanks to my sweet wife, Loretta, KBØVWW, for both audio and video assistance! (Her website is www.aldea-art.com.)
My primary website: www.dcasler.com
The ham radio part of my website (direct link): www.ke0og.net
My publishing website: www.mtsneffelspress.com, where you can find my fantasy and science fiction books.
My Amazon author page, which lists my print and Kindle books: www.amazon.com/-/e/B00471I0Q4.
Twitter: @dcasler

Пікірлер: 8

@wolson9 Жыл бұрын

I run a home built 75-40-20 fan dipole in an inverted V configuration. At first, I wasn't using a balun. But I then inserted a 1:1 balun. The effect was to reduce noise by 2 S units. I have used this antenna on the 15 meter and 10 meter bands as well. I find it a very good antenna. Tune the longest runs first, the the middle run and finally the shortest run. The center is at 35 feet on an MSJ 1917 fiberglass pole. I try to keep,the ends at 7 feet above the ground in order to avoid deer problems. I have the 75 meter run on a North-South azimuth. The 40 meter run is about 15 degree azimuth from that and finally the 20 meter run is at about 30 degrees from the 75 meter antenna. '73s AI7MY

@roxleyldc Жыл бұрын

Excellent tip! I put up a fan dipole in my attic, and it works, but it’s noisy so I’ll try using a Balun….

@jameski5oeb668 Жыл бұрын

Thanks for another great video!

@bill-2018 7 ай бұрын

I tried a ferrite ring on my outdoor 60m inverted vee at the aerial and found it wasn't very good at stopping r.f. I now have it in the shack. I've seen both positions recommended by aerial manufacturers. I think r.f. got in below the ferrite ring. Perhaps one positioned some distance from the aerial would be better? I'm going to slide the rings up the coax to the ceiling to try on my attic dipoles, 14 mHz and 18 on one coax, 21 and 24 on the other with 28 on the other. Three coax cables for less interaction. I might try 14 and 21 together for that reason and 18 with 24 leaving 28 on it's own.. G4GHB.

@migsvensurfing6310 Жыл бұрын

The answer to the viewer question is to tune the lowest band first (longest wire) and then the next higher band and so on. The reason is that the longer wire has influence on the shorter ones and that has to be tuned out. Its not as complicated as this video wich also didnt answer the question. Made one years ago and it was easy and worked perfectly.

@tomperone9338 Жыл бұрын

Interesting. Makes sense too. I'm considering playing around with some multi-band dipoles once the weather warms up, so this topic is somewhat timely for me.

@roxleyldc Жыл бұрын

I appreciate you trying to answer the question. I guess Dave was preoccupied with trying to get more patrons….

@evanbetter 17 күн бұрын

that‘s not fair, man. dave is putting a big effort into this videos (try making one, yourself). and he only asks once for some support on patreon, which is completely fine. that there might be better ways to do the job, doesn’t change that.