Simple VHF and UHF dipole antenna 

Nicely and simple made dipole, longer tubes for 2 meter band and shorter tubing for 70 cm band, also the 2 meter band dipole could work as a 3/2 wavelength harmonic antenna for 70 cm band. Video shows a vertical omnidirectional Antenna but small dipole may have some directional characteristics as being close to the larger dipole. thank you.

TV duplexers that combine VHF & UHF antennas, work great for separating the antennas.

How did the police know soo quickly he made a home antenna? 🤔

great little project...thank you!!

czesc,chciał bym zapytac jak sprawdza się ta antena i jak sie ma w stosunku do "duo" j-pole ? czy taką też próbowałes budowac ?

have fun hooking up the feedline kg6mn

how its work ..and what about gain ?? this is VU3 YWB

Nice Concept!

Thank you!

Nice design, good video. How was the reception?

I like...good job..!

Hii bro I manufacturer from dipol anntenna but how do I

Thoughts on this type of antenna vs the copper tubing j-pole for performance? This seems more mobile and easier to mount. Any other thoughts?

qual o preço aceita cartao ,divide em quantas vezes?

Does such antennas have better UHF reception because the antenna is larger. Because it includes VHF dipole? Or does it not affect UHF reception or may it fail to receive UHF?

What are the dimensions Here LZ1DLP

A gdzie kabel?

What did he say

Nice video. Do you think it's possible to combine 144 and 220MHz as you did with UHF? 73 de PY5CL

perfect!

Good idea

How did you bend the aluminum ?

Jak przyłączyć przewód do anteny bo tego nie jestem do konca pewny?

What do you mean by hot wire ? Is it the innermost copper wire in a coaxial cable or the outer conductive mesh ?

But how did you connect it to the SDR?

nice.

What are the measurements of the PVC tube that is attached to the mast? Thank you

How much is the Road Diameter? 3mm is it right? Can I do this Antenna with 4 mm?

How on earth do you manage to connect the cables?

I couldn't find a stainless steel or even an aluminum... would it okay for a copper brass?

skąd bierzesz takei rurki? jaka srednice zastosowałeś? u mnie w okolicy wszystkie metale kolorowe sa sprzedawane od pn do piatku co dla mnie stanowi problem i zdaje sie ze zostaje zakup przez internet i placenie za przesylke. pozdrawiam. jak ci dziala ta antena ? jakie masz realne zyski w dbi ?

Witam, z chęcią bym zakupił u Pana taką domowej roboty antenę. Nie mam na tyle wiedzy aby to samemu wszystko sklecić (głownie chodzi o montaż przewodów itp). Mam radio boafeng uv82. Byłaby możliwość zrobienia takej anteny na zamówienie która będzie pasować do mojego radia? Posiadam ten RTL-SDR na usb ale tutaj jest inne wejście antenowe.

Hi i fix my aerial and i catch only seven channels ALPHA - ANT 1 - OPEN BEYOND - MACEDONIA - SKAI - STAR CHANNEL - MEGA

Hi how long must uhf elements be ...

Verbatim instructions from the dead link in the description for "Zed Zed's workshop: a simple 2 m / 70 cm vertical dipole antenna": A Simple 2 m/70 cm Vertical Dipole Antenna: This easy to build dual band VHF/UHF antenna makes a great project for the new ham that is ready to get on the 2 meter and 70 centimeter amateur radio bands. It can be mounted on a roof top for use as a fixed antenna and it also folds conveniently for travel making it an excellent backpack antenna. The design is simple and so is construction. Construction: The antenna elements are made of 1/8" diameter stainless steel rod. Each rod is bent into a tight "U" shape and fastened to the acrylic plexiglass boom with stainless steel hardware. Flat washers large enough to fit across the gap in each element are used to hold the elements in place. A piece of 1/4" thick cast acrylic plexiglass, 18" long and 2-1/2" wide, is used for the boom. Drill the holes in the boom as shown in the diagram. The position and hole size for the mast mounting clamp is determined by the size and width of the clamp or U-bolt that you use. I used a TV antenna mast clamp that fits a 1-1/4" mast. Probably the hardest part in making this antenna is bending the stainless steel rod. But the rod can be bent without heating it first with a torch. I was able to bend the rod by placing it in a bench vise. The tricky part is to bend two pieces of rod that come out looking similar is shape. Use two pieces of stainless steel rod that are longer than needed then trim them to correct lengths after the rod has been folded into a U shape. Make each element section as shown in the next diagram. The hardware for mounting the antenna elements to the boom is also used to connect the feed line to the antenna. The coaxial cable center and shield are separated and the leads kept as short as possible. Crimp-on ring connectors, with the plastic insulation removed, are soldered to the ends of the cable. The coaxial cable center lead is connected to the top section and the shield is connected to the bottom section of the antenna. This antenna was fed with RG-8X (Mini 8) 50 ohm coaxial cable. The feed line used was a random length and was not cut to any specific length. I used mostly all #6 stainless steel hardware to attach the antenna elements to the boom. Start by placing an external tooth lock washer on a machine screw then insert it into the hole drilled in the boom. Next install a flat washer, then the antenna element, then another flat washer. The ring connectors with the coaxial cable attached go on next then finally fasten with a split lock washer and a wing nut. Repeat for the opposite side. Tuning the Antenna: To tune the antenna for minimum SWR simply loosen the wing nuts and slide the antenna elements in or out as needed. Keep in mind that changes made to one band will affect the other band. For example if you shorten the 2 meter length then you also shorten the 70 cm length. Some fine tuning by again trimming either the 2 meter or 70 cm sections may be done if desired but this should not be needed. All stainless steel element mounting hardware. Use larger size hardware if flat washers do not extend across both sides of the antenna element. Part list: 2 each 1/8" Stainless steel rod, 3' (.9 m) long. Acrylic Plexiglass, 18" x 2-1/2" x 1/4" (45.7 cm x 6.4 cm x 7 mm). 2 each #6 x 32 x 1" (25 mm) Machine screws. 2 each #6 x 32 Wing nuts. 4 each #6 Large flat washers. 2 each #6 Split lock washers. 2 each #6 External tooth lock washers. 2 each #6 Crimp-on ring connectors. Mast mount clamp. Plastic cable tie or small U-bolt. (I could not include the picture diagrams as RU-vid does not allow links. One photo shows the measurements for the rod. The steel rod should be exactly 18 5/8 inches in (47.3cm) length. You need to bend the rod so there is exactly 6 ¼ inches (15.9cm) for the short end. The bend should be 3/8 of an inch (10mm) in width.)

where are the electrical connections

Might be easier to connect the cable first by inserting it into the bottom of the pipe, then out to one side.

What centimeters of the antenna?

👏👏👏👏👏👏👏

how is the swr? cheers 73s from Canada

Amrjeetkumar

Didnt really tell me much apart from I screwed this to this LOL.

This video would be much better if I could hear anything...

i like it but i want to watch and VHF chanels

You were mumbling.... which means you didn't want to talk to me.... g'bye