What to Use For Folded Dipoles (

  Рет қаралды 6,893

David Casler Ask Dave

David Casler Ask Dave

Күн бұрын

Пікірлер: 10
@tpobrienjr
@tpobrienjr Жыл бұрын
A friend ran a vertical antenna up the outside of his chimney and painted it to match. Don't remember what else he did, but he got reasonable results, I think.
@jhmcglynn
@jhmcglynn Жыл бұрын
I installed my first dipole under the eves of my uncle’s home on Long Island. It was 40 meters and worked great. I also had a 40 and 20 meter dipoles in the attic of my home in St Johns FL. They also worked great.
@2EOGIY
@2EOGIY Жыл бұрын
4:26 In that configuration, the antenna becomes a slot antenna as it is feed parallel to the radiator (look at hentenna). The Folded dipole is fed in series to radiator. I am trying to remember which particular case it is: lowest SWR or widest bandwidth.
@danboy3399
@danboy3399 Ай бұрын
I believe each time you add a parallel radiator on a folded dipole, the feed point impedance multiplies by 9 (or was it 7?). My ARRL Antenna manual is buried so I can’t check it.
@johnhess351
@johnhess351 29 күн бұрын
What about putting transmission ladder line in pvc conduit for say 20 feet if the conduit is in clear space?
@rogerlafrance6355
@rogerlafrance6355 Жыл бұрын
Don't know what rotor cable is but, #16 lamp cord is about 72 Ohms and was popular to feed a dipole in the Tube days before coax. A folded dipole is a one bander unless you load up the feedline,
@pkvalsvik
@pkvalsvik Жыл бұрын
A rotor cable are the cable that is between the controllbox and antenna / tower rotator. It contains multiple strands :)
@sincerelyyours7538
@sincerelyyours7538 Жыл бұрын
The G3TPW Cobwebb antenna uses speaker wire and passes one wire through the feedline box and the other wire begins and ends at the box where both ends get tied to the coax connector. The outer ends are tied together like a folded dipole. Apparently this gets up to 7dBi gain and is omnidirectional. Few people sell these things, however, making most of them homebuilt. Been trying to import one to Japan but that's like pulling hen's teeth. Anyone have one to sell?
@glenmartin2437
@glenmartin2437 Жыл бұрын
Thank you, Dave. I have found some strange things on the Internet. Sometimes, I experiment and find out it works, many times not. N0QFT
@meirarasual7921
@meirarasual7921 Жыл бұрын
👉 'Promo sm'
Fold the end of a Dipole Back - What's Happening?
10:58
DXCommander
Рет қаралды 49 М.
80M Antenna Frustration! (#389)
23:32
David Casler Ask Dave
Рет қаралды 34 М.
❌Разве такое возможно? #story
01:00
Кэри Найс
Рет қаралды 7 МЛН
МЕБЕЛЬ ВЫДАСТ СОТРУДНИКАМ ПОЛИЦИИ ТАБЕЛЬНУЮ МЕБЕЛЬ
00:20
When you discover a family secret
00:59
im_siowei
Рет қаралды 34 МЛН
女孩妒忌小丑女? #小丑#shorts
00:34
好人小丑
Рет қаралды 101 МЛН
A Folded Dipole for 2-meters (70-cm?) (048)
26:01
Electronics for the Inquisitive Experimenter
Рет қаралды 23 М.
Do I Need a Balun (#739)
14:02
David Casler Ask Dave
Рет қаралды 31 М.
Real Dipoles Don't Do This!  (#951)
10:54
David Casler Ask Dave
Рет қаралды 6 М.
My 5-Band Attic Antenna for Ham Radio
17:02
watersstanton
Рет қаралды 25 М.
Ham Radio - A 40 meter folded dipole using window line.
18:50
Kevin Loughin
Рет қаралды 43 М.
Learn About Shortwave Listening (SWL) for Beginners (#352)
39:20
David Casler Ask Dave
Рет қаралды 806 М.
Ham Radio: 40 Metre Dipole In A Small Space
13:16
Tim G5TM
Рет қаралды 47 М.
Indoor Antennas In Apartment Building and Other Options (#878)
12:44
David Casler Ask Dave
Рет қаралды 22 М.
How High Should a Dipole Antenna Be? (#176)
15:21
David Casler Ask Dave
Рет қаралды 54 М.
❌Разве такое возможно? #story
01:00
Кэри Найс
Рет қаралды 7 МЛН