Watch This If You Want To Build A VHF / UHF Vertical Dipole Antenna

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  • Опубліковано 1 сер 2024
  • I promised this for a long time, to some of the subscribers asking about my dual VHF - UHF vertical dipole antenna. Works great and I like the fact that I can adjust the SWR as I please.
    73, YO6DXE
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  • Наука та технологія

КОМЕНТАРІ • 73

  • @kwladek
    @kwladek 10 місяців тому +7

    Every Ham radio operator should constantly repeat out loud to himself: "The most important thing, idiot, are the antennas."

    • @dxexplorer
      @dxexplorer  10 місяців тому +2

      So true 😅😅😅. The more I learned about the hobby the more I realized what a big difference an antenna can make. And well built and tuned... can make us "happy kids" 😁. 73, YO6DXE.

    • @attilarivera
      @attilarivera 4 місяці тому +1

      Hahahahhaah
      True

    • @dxexplorer
      @dxexplorer  4 місяці тому

      🤣🤣 73 my friend.

  • @tangobayus
    @tangobayus Рік тому +3

    I made a dual-band dipole using 1/2" pvc and speaker wire. I made the 2m first and used a Surecom meter to tune it down to almost 0 SWR. As I recall, when I tuned it for the middle of the band, the rest of the band worked pretty well. When I added the wires for 70 cm the SWR on 2m went crazy until I got them tuned for 70. At that point the 2m SWR settled down. In use I have found that some frequencies in both bands have SWR > 3, but the built in tuner on my Yaesu gets those down to 1.5.

    • @dxexplorer
      @dxexplorer  Рік тому

      Maybe the Yaesu may have some sort of tunner that will adapt the antenna impedance and lower it ? It does seem that when you make the antenna for dual band... they always influence each other. But as you say... once you tune them well they also perform well on both bands.

  • @multilecful
    @multilecful 2 роки тому +3

    Nice one Chip, glad you used stuff your dad made. Thats why the swr is good lol.
    Try a J pole next, they are good fun and easy to make. 73

    • @dxexplorer
      @dxexplorer  2 роки тому +2

      I have a really bad space here to install antennas and I thought a simple dipole will do the job. When I will have a proper transceiver for home base I will also build some proper antennas for separate bands hehehe. But this one works really nice so far for what I need. Now I must go shopping for some 6mm tubing so I can finish the satellite Yagi antenna ))) I'm dying for a QSO over the satellites hahaha. 73 Nigel. Tomorrow we catch up and hopefully soon we do a QSO as well finally )))

  • @bradhiebert6403
    @bradhiebert6403 7 місяців тому +2

    I'm from Canada. I found your video very interesting. Im going to build that antenna. Its very well done. Im just getting my license and i have 3 baufeng radios and CB radios. Setting up a 65' tower as i am way out in the country.

    • @dxexplorer
      @dxexplorer  7 місяців тому +1

      I like it because is simple. Of course there are many more with better performance... but for beginners like us this one is good enough. I don't have a CB radio anymore for years now... but I think next year I will get one also. 73, YO6DXE and good luck getting the license.

    • @bradhiebert6403
      @bradhiebert6403 7 місяців тому +1

      @dxexplorer thank you. I'm going to keep your call sign for future use when I get my license.

    • @dxexplorer
      @dxexplorer  7 місяців тому +1

      @bradhiebert6403 let me know when you get yours. I think I need a little more power and a better antenna for DX... but I hope for a QSO one day 😁😁

    • @bradhiebert6403
      @bradhiebert6403 7 місяців тому +1

      @@dxexplorer I will let you know when I get it.

  • @Jerad-wu3xt
    @Jerad-wu3xt Рік тому +1

    Thank you for making these videos. You have helped me so much. Thanks again.

    • @dxexplorer
      @dxexplorer  Рік тому

      My pleasure my friend. Thank you as well for watching. I share what I do for myself... maybe I give people ideas ))) and sometimes people give me ideas to improve things, or they let me know if I do something wrong. I love this hobby and the people involved. 73

  • @WoodyPhillips
    @WoodyPhillips Рік тому +1

    Brilliant design. Nice.

    • @dxexplorer
      @dxexplorer  Рік тому

      Thank you so much. Inspired from an old amateur radio book from the 70's. Old is gold ))) 73

  • @raydentong7tqt
    @raydentong7tqt Рік тому +3

    Just came across your video. I found it very interesting. Probably much better than using two pieces of wire coat hangers bent to fit into two seperate connectors and two appropiate lengths for 2m and 70cm.

    • @dxexplorer
      @dxexplorer  Рік тому +3

      Thank you so much. Well... if there is no aluminum tubing on hand... I am pretty sure the coat hangers are better than nothing 😄😄. I tried that too some while ago out of curiosity. Well adjusted they are not bad at all. 73 DE YO6DXE.

  • @MakeDoAndMend1
    @MakeDoAndMend1 7 місяців тому +1

    Hi. Many thanks for the idea of making this aerial. I am making one of these from scrap material lying about in my garage. I am also planning to do a video so will put a link to this video. Cheers from G1BKI Mick but known as old George in the UK

    • @dxexplorer
      @dxexplorer  7 місяців тому +1

      I am sure is not the best antenna... but it seems to have a good performance considering the simplicity. Good luck with the project and send me a link as well when you post the video. Cheers and have an amazing rest of the week. 73, YO6DXE.

  • @Yunesieh
    @Yunesieh 2 роки тому +3

    nice , 73!

    • @dxexplorer
      @dxexplorer  2 роки тому +1

      Thank you. Glad you like it. 73

  • @4youian
    @4youian 2 роки тому +4

    Hi Chip, you could go pedestrian mobile with that and make VK3YE proud! 73, Vk7IAN

    • @dxexplorer
      @dxexplorer  2 роки тому +2

      Indeed hehehe. I will build a magnetic loop though for the tr(u)SDX and do that properly hehehe. I'm trying to get back at building stuff as I have a table full of projects waiting to be finished... not much free time though. 73 Ian.

  • @jorgecervera1200
    @jorgecervera1200 Рік тому +1

    Gracias por compartir, excelente video, intentaré hacer la mía, 73

    • @dxexplorer
      @dxexplorer  Рік тому +1

      Con todo gusto mi amigo. Espero que funcione tan bien como el mío y que hagas muchos QSO. 73 DE YO6DXE.

  • @jackz8060
    @jackz8060 Рік тому +1

    Thanks.
    Very informative

    • @dxexplorer
      @dxexplorer  Рік тому

      Thanks as well for watching. 73, YO6DXE.

  • @mikemoreno4469
    @mikemoreno4469 Рік тому +1

    Excellent.

    • @dxexplorer
      @dxexplorer  Рік тому +1

      I still didn't had the chance to put it on the roof yet ))

  • @seanchallenge
    @seanchallenge Рік тому +2

    Awesome

  • @ki8um119
    @ki8um119 Рік тому +1

    Very nice build!!!

    • @dxexplorer
      @dxexplorer  Рік тому +1

      Thank you so much. Trying to make it a little more waterproof now ))) I still didn't got to install it, but I will now that the snow is gone. 73 and have an amazing week..

    • @ki8um119
      @ki8um119 Рік тому +1

      @@dxexplorer 73

  • @KE2BHP
    @KE2BHP Рік тому +2

    73 My Friend 👍

    • @dxexplorer
      @dxexplorer  Рік тому +2

      73 and have an amazing weekend... is close ))

  • @sv2tcb
    @sv2tcb 2 роки тому +2

    Just made the dipole for the VHF band and is working great. With 5w the swr is about 1.5 and 1.7 at 146mhz. I will probably make a video. I cut the elements at 52cm because then i can cut them for lowest swr. The ideal length is about 46cm. should i cut the dipole?
    Have a nice week!

    • @dxexplorer
      @dxexplorer  2 роки тому

      Cut it but only 5mm at a time and check the SWR each time. It depends where you install it as well... so if you can try to measure the SWR whith the antenna in it's place that would be great. Waiting for the video 😁😁 Let me know how it goes. 73 and have an amazing week as well.

    • @sv2tcb
      @sv2tcb 2 роки тому +1

      @@dxexplorer thank you, i will try it, the antenna for test purposes is located in my balcony and i am away while i am measuring the swr. I will let you know. I haven't tried transmitting in the 70cm band but i can receive signals well. I will keep you updated

    • @dxexplorer
      @dxexplorer  2 роки тому +1

      Should work on 70cm as well. Only that the SWR may not be as good as on 2m.

  • @LB9HI
    @LB9HI Рік тому +1

    simple and nice.

    • @dxexplorer
      @dxexplorer  Рік тому +1

      Multumesc mult )) Initial am vrut sa fac un J-Pole, dar am zis ca e mai bine sa incep cu ceva simplu )) 73 si weekend frumos.

    • @LB9HI
      @LB9HI Рік тому +1

      @@dxexplorer pai cu CW, QRP, antene hand made si de pe langa Brasov ma intreb daca esti pasionat si de operat in portabil..SOTA, POTA, WWFF..:)

    • @dxexplorer
      @dxexplorer  Рік тому +1

      @@LB9HI Inca nu am apucat... am avut prea multe pe cap, insa anul asta am de gand sa schimb traba asta )) Cel putin in ce tine de SOTA. 73

    • @LB9HI
      @LB9HI Рік тому +1

      @@dxexplorerai grijă
      : creează dependenta..:)

    • @dxexplorer
      @dxexplorer  Рік тому

      @@LB9HI Cand eram cu barcuta pe mare... dupa o furtuna spuneam... "am scapat.. ce poate fi mai rau ?". O ora mai tarziu aflam ce putea fi mai rau hahaha. Asa ca nu mai spun asta )). Abia astept sa ma aleg cu inca o dependenta... cat poate fi de rau ? 😅😅😅. 73

  • @9PAT508
    @9PAT508 Рік тому +2

    So...a dipole is a directional antenna. Why people say it's omnidirectional ?

    • @dxexplorer
      @dxexplorer  Рік тому +2

      It depends how you use it. If is horizontal... it has a weak directional tendency. But if you use it vertically then is omnidirectional. Similar to a ground plane antenna.
      P.S. Tomorrow I will actually release the blog post on the website if you want to have a look... it will have the radiation pattern depending on how you install the antenna. That will explain the way it works better than words ))) 73

  • @chase_h.01
    @chase_h.01 Рік тому +2

    Do you have an idea what the range of this would be using a uv5r?

    • @dxexplorer
      @dxexplorer  Рік тому

      I am not sure to be honest. I keep saying that I will do a trip in the mountains and test it, but with bad weather and little free time... not yet. I do get repeaters around me very easy... 20-30km away that usually I don't with the regular antenna. I guess it depends a lot on the location and the height as well.

  • @zulkarnainhusin6288
    @zulkarnainhusin6288 Рік тому +1

    👍👍

  • @sv2tcb
    @sv2tcb 2 роки тому +2

    I was searching for this exact video. The only problem for me is how to make radials stable. Is there any solution?
    Best regards

    • @dxexplorer
      @dxexplorer  2 роки тому +1

      Use any material you can think of that would do the job and try to do something similar to those pieces of plastic I have. I'm about to do the same for my dual band Yagi as I don't have enough leftovers from my dad's antenna to finish mine ))) 73 my friend.

    • @sv2tcb
      @sv2tcb 2 роки тому +1

      @@dxexplorer i might make an antenna only for vhf and not uhf with copper pipe. A good antenna is essential, the implemented ones are not the best!

    • @dxexplorer
      @dxexplorer  2 роки тому

      Try as I did first one for the 2m band as it will also resonate on 70cm. The SWR may not be perfect but it will do the job ))

  • @clarissegoellner7193
    @clarissegoellner7193 Рік тому +1

    Hi to all. Have you measured the bandwidths under 1:1,5 vswr ? I wonder what results you achieved. 73 de PY2CWB

    • @dxexplorer
      @dxexplorer  Рік тому

      I did yes but I can't remember exactly. But I will do another SWR sweep tomorrow and I will let you know. It's raining now so I can't do much proper measurements. 73 DE YO6DXE.

  • @victoryfirst2878
    @victoryfirst2878 7 місяців тому +2

    This is not an antenna for FTA TV ??? Would you make an antenna for a deep fringe TV reception for 70 plus miles Sir ??? Thanks for considering my question and help too. vf

    • @dxexplorer
      @dxexplorer  7 місяців тому +1

      Hi... sorry but no. Even though you could probably receive something if you connect it... is not meant for TV reception. Unfortunately I cannot make videos related to TV reception on the channel. Is strictly about amateur radio. But if you Google a little I am sure there should be a lot of information on how to build one.

    • @victoryfirst2878
      @victoryfirst2878 7 місяців тому +2

      Thank you Sir. I will.@@dxexplorer

    • @dxexplorer
      @dxexplorer  7 місяців тому +1

      See if you can figure out the frequencies you need for the particular TV stations you need. This way you could calculate a Yagi antenna with many elements for some good reception. That is what I would do.

  • @vu2eaf
    @vu2eaf 2 місяці тому +1

    Can you provide the design diagram

    • @dxexplorer
      @dxexplorer  2 місяці тому

      I have a drawing in the blog article. There is a link in the video description. 73, YO6DXE

  • @nealbeach4947
    @nealbeach4947 20 днів тому +1

    #1 Build a dipole
    #2 Turn it sideways
    #3 Problem solved
    #4 Never overthink a dipole.

    • @dxexplorer
      @dxexplorer  20 днів тому +1

      Yep. Pretty much that's it. Keeping things simple is the best. I just wanted to ad those adjustable "tips" to help me adjust the SWR easier. Works like a charm. And I am re-installing it as we speak on the camper 😅😅. I was just drilling the holes for the cable earlier. 73, YO6DXE

  • @MrtechElectronics
    @MrtechElectronics 2 роки тому +3

    Exellent video bro 73 ❤❤❤❤ DE VU3IZD

    • @dxexplorer
      @dxexplorer  2 роки тому +1

      Thanks so much buddy. Soon another one on the dual band Yagi. I just need a few more materials for that one. 73