Building a 40 Meter Rotatable Dipole

  Рет қаралды 37,289

Jonathan Charles

Jonathan Charles

Күн бұрын

Пікірлер: 21
@wramsey2656
@wramsey2656 Жыл бұрын
Your very blessed to have a brother who shares your hobby. Great video!
@sporsterini
@sporsterini 5 ай бұрын
I love it when hams save these old antennas. I snatch up broken antennas when I can for repair or the tubing. A friend of mine and fellow ham made a 40 meter rotatable with a coil in the middle for matching.
@Keith_WB2VUO
@Keith_WB2VUO Жыл бұрын
I have a much shorter end-loaded rotary dipole here near Buffalo, NY, but my lot is only 40 feet wide!. Your dipole looks great, but it would touch both sides of my back yard, hi! My dipole is the 40 - 2 meter MFJ-1775. I assembled it for just 40 - 10 meters, it is 14 feet long and the 2:1 SWR bandwidth is only 60 kHz on 40, but in the clear and mast-mounted makes up for the narrow bandwidth. Nice video and a great looking antenna. 73, Keith, WB2VUO here near Buffalo, NY
@donalfinn4205
@donalfinn4205 2 жыл бұрын
Well done!☘️👍
@williampeacock9473
@williampeacock9473 4 жыл бұрын
Yall done a great job putting the antenna together. And thanks for the parts list that a real big help. Maybe I can get one UP in the air as you have done. 73 AE4OY William A. Peacock,Sr. EM-81UF
@andrewstewart5396
@andrewstewart5396 4 жыл бұрын
Thanks for posting this video. 73 NW7W
@johnadams6569
@johnadams6569 6 жыл бұрын
In 1966, if you had a 40 meter dipole than you also had a 15 meter dipole. But only in 1966.
@PabloSabbagCA
@PabloSabbagCA 4 жыл бұрын
Hello, could you please let me know where I can find the measures for this antenna? Thanks.
@MAWazaLLC
@MAWazaLLC 6 жыл бұрын
Enjoyed watching your video - KC3HUL
@RobBob555
@RobBob555 6 жыл бұрын
would traps not be easier than the linear loading ?
@radionb3i
@radionb3i 6 жыл бұрын
M2 thinks so. They have replaced their linear loaded 40 meter elements with coils they say are really efficient. However in our homemade situation using a little wire is so simple and inexpensive but also works really well.
@andr1654
@andr1654 4 жыл бұрын
Hi Jonathan thank you for the video. Is there a way thatI can send you an email ?
@radionb3i
@radionb3i 4 жыл бұрын
Yes. jcharlesstudio@gmail.com
@ne2i
@ne2i 5 жыл бұрын
do you have the tubing schedule and lengths available?
@radionb3i
@radionb3i 5 жыл бұрын
Here is what I bought. www.texastowers.com/aluminum-6.htm I just bought 6 foot lengths to it was shipped by UPS. The first section...1.250 I cut in half....Just 3 foot each side. The next section is 6 foot... 1.125 followed by a 6 foot 1.0 inch tube. You need to use a 1.0 tube on both sides of the 7/8 inch insulator so I used 4 - 1.0 inch tubes on both sides of the insulator from Cushcraft. The off sets from M2 fits the 1 inch OD tubing. After the section 1 inch tube I cut the rest of the tubes in half using 3 foot sections till the end of the element. The only problem I had was the string stretched in time..... make sure you use Philly strand or non stretchable rope to support the weight of the long element. Doubling the tubing up in the first two sections also adds strength to the element.
@K1ZEK
@K1ZEK 6 жыл бұрын
Very nice video, thanks so much for taking the time to make it and share your knowledge. I'm building a new antenna farm..hi ..and I was wanted to make a meter rotary dipole for one of my "old man" fold-over towers, now I got some GOOD info. pls see my videos here on you tube under k1zek. 73 cul k
@radionb3i
@radionb3i 6 жыл бұрын
I saw you have a great project....lot of tall trees surrounding open yard....Just perfect for wires and other antennas. Best wishes.
Ham Radio - Comparing a folded dipole to a regular dipole.
11:15
Kevin Loughin
Рет қаралды 40 М.
Easy Build: 20m Half-Wave Rotatable Dipole Antenna
14:34
N5YIZ Radio
Рет қаралды 35 М.
She made herself an ear of corn from his marmalade candies🌽🌽🌽
00:38
Valja & Maxim Family
Рет қаралды 18 МЛН
黑天使只对C罗有感觉#short #angel #clown
00:39
Super Beauty team
Рет қаралды 36 МЛН
“Don’t stop the chances.”
00:44
ISSEI / いっせい
Рет қаралды 62 МЛН
40 Meter Half-Wave Rotatable Dipole Antenna
21:09
N5YIZ Radio
Рет қаралды 10 М.
HF Yagi MiniBeam - Let's Build One.
18:18
watersstanton
Рет қаралды 8 М.
Ham Radio: 40 Metre Dipole In A Small Space
13:16
Tim G5TM
Рет қаралды 51 М.
Build a 160/80 Meter Magnetic Loop Antenna - Part 1
7:17
Jeri Ellsworth
Рет қаралды 320 М.
END FED HALF-WAVE ANTENNAS - BEWARE!  WHY?
13:11
watersstanton
Рет қаралды 103 М.
50ft tilt over tower project
5:24
World Radio 520
Рет қаралды 13 М.
How TO. Builds a Hamstick Dipole
7:10
Temporarily Offline Ham Radio
Рет қаралды 25 М.
DIY Folding Rotatable Dipole 10-20meter
26:41
KK6USY Ham Radio Adventures
Рет қаралды 4,5 М.
20M Vertical Dipole - Amazing Performance - T2LT Design
9:28
Tech Minds
Рет қаралды 82 М.