Homemade Folded Dipole TV Antenna performs way better than I expected

my FM radio has only 1 antenna out. (single wire). but coax has two wires , outter earth and inside copper.

Need to better understand how to determine the length of each side of the dipole based on the channels to receive. But technically do you need a separate length for each channel that is not practical. The TV band is channel 2 VHF all the way up to channel 36 UHF I believe the range is from 54 all the way up to 608 MHz. Can one antenna receive every channel in this range I'm not sure how you do that can you help?

Sometimes these simple designs work surprisingly well. I'm much further from the towers, so multiple similar dipoles are needed. Hence Channel Master 4221. That design has been copied longer than I've been alive.

could this antenna reach 500m

Could you make this antenna work for OMNI directionality and deep fridge distance ?""

DESDE URGUAY ,,MONTEVIDEO QUE PENA QUE LOS SUBTITULOS ESTE TAN CHICOS .. ASI MUCHAS DE LAS PERSONAS QUE USAMOS LENTES ,, PODRIAMOS LEER LAS EXPLICACIONES Y NO YO MUCHO DE NOSOTROS DESPUES DE LOS 60 AÑOS NO TENEMOS BUENA VISTA Y MAS PARA LA NUEVA GENERACION QUE LAMENTABLE,,MENTE TAMBIEN USAN GAFAS A ELLOS SE LES HACE DIFICIL LEER LOSSUB TITULOS EN LETRAS TAN PEQUEÑAS GRACIAS POR LA DEMOSTRACION DE ESTAS ANTENAS ,,10 4 2O23 ..

Hi good video, thanks. What are you using to measure the signal strength? Thanks

Can I use that transformer on a long range antenna I found in my attic?

Improve performance of this antenna. Your overall length should be 104 inches. About 8 ft. Granted not ideal, but you aren't getting the most gain or efficiency with the shorter length. It's a wonder you are receiving. As is each side is 1/8 wavelength long. Ideal construction would be found in an antenna handbook. But when I build these I use lengths of 300 or 450 ohm flat or ladder line. The spacing is already set. Split one side at the mid point and solder your transformer or another length of your line one to each side. As in common FM stereo antennas. You get improved gain (around 3 dbd) and bandwidth. You may do as well with a fan dipole and easier construction, as you aren't transmitting. Or just use an folded dipole antenna made for fm stereo. I applaud your building efforts. I hate that everyone wants to buy lower quality when they could build better for free. Keep it up.

The folded dipole is the same length as a simple dipole. L (ft) = 492 / f ( MHz ). The characteristic impedance (Z) of a simple dipole several wavelengths above ground is 72 Ohm. It can be fed directly by 75 Ohm coax. A matching transformer 300: 75 ohm is unnecessary and will only cause signal loss. Folded dipole construction depends on the conductor diameter, spacing between the conductors, and the dipole length. Shape of the ends makes no difference. Characteristic impedance of the folded dipole is typically known as 300 Ohm. In practice however it is 200 Ohm therefore a matching transformer is needed for a coax downlead.

can I get one for free ???😁

1) Both antennas should be 1/2 of a wave length.

2) The spacing between the arm with the transformer and the folded section matter to the performance. If you get those the right distance, the folded dipole has a wider bandwidth than the plain dipole. A pipe having a larger diameter than a wire also makes the bandwidth wider.

3) Your idea of impedance is correct. It works best when the impedance is matched. This also means that the resulting impedance is at zero phase. With a zero phase on the impedance (also call resistive), the voltage and current stay in step with each other.

WOW

"I kinda spitballed it". 🤣😂 yea, I made a couple of antennas myself, a two and four bay bow tie, and a gray-hoverman. I wish you had some UHF stations available. would be interesting to see if this folded dipole model could pick up UHF.

Your 4ft short. but its working for you.

Like to see try out my home made antenna single six foot dipole works great because it's all directional made out of the same material you're using now

Could you do the same thing but with TWO dipoles? Like one above the other, and both connected to the balun?

nice results

good job and creative use of copper tubing.

Does it have to be grounded?

Since it does a good job receiving VHF Low it will also receive FM channels but for both FM and DAB+ the antenna must be mounted vertical.

Thanks Mr. I'm gonna make a folded dipole tuned for my favourite fm radio channel. Probably use a piece of square plastic from a discarded porch railing railing. (Non-conductive even when wet)

Could you put multiple elements on one board if you wanted to get multiple signals on different frequencies from different directions?