Long Range Yagi Antenna 19 Element 2 4GHz 

That has got to be the smartest yagi design I have ever seen. I worry about the center support screwing up the signal because it too is made of metal, but you completely eliminated that. Well done.

That's a folded dipole. The impedance in nominally 300 ohms. The SMA connector is 50 ohm. There should be a matching network.

Tip: You can use the side of a Bic lighter, or other hard plastic with a smooth rounded part, to smooth out bubbles in the tape.

I like how you used packaging tape to increase the thickness of your block of wood to 5 millimeters

I love Yagi antennas, and I appreciate all your work, Thank You!

I really like your videos. Found this channel recently. Yagi antennas are very directional.

Hi Andrew and excellent work. Without the exact dimensions of the YAGI elements and the spacing between them the information in the Templates is useless because different Printers will produce a different image. Grateful if you could supply the exact dimensions. Thanks Andreas

Fantastic video, please do an updated and larger one than this for the fun of it in 2023

The folded dipole antenna has a theoretical impedance of 300 ohm so if the coax is 50 ohm, you are not getting a proper match and hence best signal. If I were building this antenna, I would've stuck with the foil for the driven element, with the split in the middle the impedance is closer to 50 ohm.

Great project Mr. Andrew, i'm beginner in this, i have built this antenna following your instructions and it works really good, i pick up lot of APs, but i was wondering how is the diameter of the copper wire element affecting the antenna? i didn't had the one you used (1,25mm if i'm not mistaken), i had smaller one(1mm) and bigger one(1,75mm), i have chosen smaller one in my antenna, but i'm not sure what difference it makes.Thanks!

Thank you very much for these videos. I just have one question before I start building my own antenna, what is the strongest antenna you have ever built ? and can I find a tutorial on how you made it on you channel ? Thank you very much,

Interesting design. I wouldn't have thought about using copper or aluminum tape. What is the SWR, bandwidth, and power handling of this antenna?

hi Chris when i build antennas for 2.4ghz i make then tuned to the centre of the wifi spectrum channel 6 2.437. The difference between 2410 to 2510 is around 0.5mm. The yagi is a good choice if you are using in an area with a lot of interference but the helical antenna works better with video and can cut through obstacles like trees much better. a good setup would be, cloverleaf on plane TX helical on ground RX. hope this helps

Andrew I know this video is 9 years old and I'm not sure if you answer questions from this far back. Anyway my question is with this perspex/copper foil style yagi do you need to connect a balun. I've seen you fixing baluns on production yagi's but not connecting them to your own. I it necessary and If I wanted to connect a balun would you have link how to do it. Regards Sam

Great videos, I have 1 question, i noticed you left out the last element, my plastic only measures 60cm is it ok if i miss off the last 2 elements? it would end up as a 18 Element Yagi.

Hi Andrew, Question. From the end reflector to the Alfa card, what length should the max distance be for the coax cable. Is their any? or would it start to have loses in performance due to the length.. Would it be possible to have a cable length of 3 - 5 meters? Loving the videos, Cheers.

Very nice Andrew, I would have made the dipole with a much smaller gap between the top and bottom. Did you try a 4:1 balun? I'm guessing you tried it both ways and found no difference?

Andrew great video again, i'm not to sure if your still replying to your videos but regarding a balun, as it is a folded dipole, 1:4 or 4:4 or any other required? Regards

I saw a lot of prototypes of antennas for Wifi. Yagi with square profiles, cantennas, yagi with circular profiles... What is the best one ever? Therefore if I want to connect my garage that is 100 m from my home shall I use a antenna only in my garage or I need an antenna at home pointed to my garage?

hi, is the drainpipe compulsory for this antenna? or I can use any shape of can to cover the yagi antenna? the cantenna should be plastic instead of metal?

Andrew, shouldn't there be a balun to transform the impediance of the dipole. Which is probably around 200-300Ohms. Would the model/design also work with a open dipole concept. Tnx in advance.

Super video thank you, just built one and having fun. Please could you clarify, you say the block of wood is 5mm earlier in the thread, the wood looks thicker, did you mean 15mm? Keep up the great vids, kind regards

Very informative vids! Would you say this is the best performing design constructed to date? Can the printed design be downloaded?

Have you published the actual spacing and width of elements in case the drivers and conversions for paper sizes don't come out perfect? Thanks!

great video. I wish i had one of those. Something like this would cost a lot in the store. i really enjoyed this video :)

Loved the video! thumbs up!! I saw lots of rp-sma male connectors with various cables to use for ex: RG58, RG174, RG316... I was wondering which cable should i use?

As someone said, what do you think about a balun? I did a bit of reading on impedance and it seems like the folded dipole in the yagi has 200-300 ohms of impedance, while we need 50. Am I wrong?

I made one like your first yagi. Is there any performance increase with a metal container around your plastic. Maybe it provides a more directorial wave? I plan to slide my plastic into a plank of wood to keep the plastic straight. This will be my platform for my repeater as well

Good friend just hit live and screened in the dipole, one on one side and the other on the other side more, I can make this dish with other issues I've seen pictures of the antenna with 4: 1 balun¿ is right? which of this two methods is better balun or just stick with the living and the mesh in the dipole directly?

Hi, would it interfere with the signal if I put a metal clamp around the pipe? I want to place it on my roof and fixing it to something really well is kind of a necessity

Mr Andrew, what was the width of the driven element of which you bent 90° with that piece of wood?

Of course it helps Andrew, thanks much, I will get the material for the helical and cloverleaf. I have need of a high gain Wfi also as it turns out. Too bad it takes so long for the delivery. Live in the rural zone. And even in the town of 300,000 there is no electronics supply. TskTsk... Regards, C

Thank You Mr. McNeil for a great video! Quick question: Is the width of the metal tape important? I know the spacing is critical but, How about the width of the actual elements? Many Thanks in advance!

Fantastic ----- Well Done. Really Enjoyed this video. (very smart)

Andrew - I am making this antenna to use with 2.4ghz wireless transmitter/receiver for transmission of video signal to a capture card. For this application, I believe that I have an impedance of either 50 or 75 ohms. Would I need to use a balun with this? I am going to attach using RG316 and RP SMA connectors directly to the transmitter and receiver. Thanks for your help. Also, where do I find instructions on the balun if one is required?

What is a good piece of software to use to tweak the dipole, and for aiming purposes? The software that comes with my alfa adapter is much to slow updating me signal strength changes.

Thank you for your ongoing enthusiasm and excellent videos. Have other people has success building this antenna to the printed PDF template? I have printed without scaling the document and built the antenna carefully, used a 5mm spacer block and 18SWG copper wire. I have seen that Andrew's works really well. My antenna exhibits not gain over a simple dipole and no directional properties. I began to doubt that my copper tape which had 0.5 ohm resistance across the elements so tinned the elements with no effect. Any suggestions?

I am truly greatful for your many videos. I Don't know the sequences of the videos though so I have a question on the 20 element Yagi in-a-can ... In one of your videos you mentioned that the yagi performance drops off after x number of elements ... bigger is not better ... but maybe that comment was meant for your Biquad Yagi ... I don't recall ... Just a thought I want to clarify and keep in mind as I absorb your information ...

is it possible to use wood instead of glass?

Is there a way to attach the directed element to a single contact point? I need to hook it up to a MMDS LNB downconverter for a project, and the connection to the downconverter is one contact point, not a coaxial connector. I actually had to unsolder an integrated dipole from the downconverter, so I'm hoping to attach the yagi to the contact point where the original dipole was soldered. Thanks in advance!

I am sorry for the question but is this not a short circuit when you have a closed loop?

Hi, love your videos :-) what distance do you reach with this setup? Greetings from Belgium Erik

Hey andrew!! I have a TP link wn722n it has an external antenna and I have made a Yagi antenna in college, I was wondering will it work with my TP Link WiFi adapter, and where can I buy a sma connecter.

My Ubiquiti Nanobeam M5 is much smaller and has 16 dB gain, have you ever reviewed, taken apart or seen any of these?

That’s cool 😁 but isn’t it shorted because of the both sides being soldered together?

I'm at McDOnalds using THEIR WI-FI, as I don't have any at my home. Having already constructed an HDTV antrenna and a dipole for FM reception, this is all that's left. I just downloaded your template, but will be unable to view your construction video from home.... hence the need. Is there a downloadable video someplace, or a written account. Something I can download and use later? RU-vid wont allow that, as we know. Id appreciate any MORE help you can provide, though you've already done so much. THANKS!!

hello sir i had a question how make usb adapter from old laptop wifi card because here in my country alpha wifi card is so expinsive and the wifi card easy find in scarp plz reply

excuse me sir andrew what is the total distance of this antenna can get wifi signal? pls. reply. thanks.

I made this to pick up a 2.4 ghz wireless security camera signal I have 800 ft away.... it did not work. I saw comments about a balun needed. is that true?

I watched your previous videos and made a biquad antenna it works perfectly but yagi doesnt. where did i do wrong? is there a special size for the cooer wire element? While you were curling the copper you used a wedge. How many cm is it? I used 1.5 cm. I expect your help. With my regards...

Can I simply glue my existing little wifi antenna into the spot for the driven element and make it work?

How tick is the wooden block you used to form the dipole?

Hi Andrew. Love your work it really inspiring. I want to know if the cantenna get catch Wi-Fi signal that is 300 metres away from my house. Can the cantenna be used as a Wi-Fi signal repeater. Thanks

Does it make any difference what the diameter of the "can" is? Can I use this Yagi template in a 80mm diameter "can"? Or will it make the antenna worse?

Andrew, in your experience, what would you consider to be the best physical length to radio signal ratio in a Yagi antenna: where the length added doesn't justify dbi gain.

ur...tell me, is a Yagi more powerful than a dub-biquad? ie range wise/?

the antenna is brilliant, instead of fighting the nut into the side of the pipe what if you used a nutsert.

you are a genius

Hello Andrew! How thick and wide is the Plexiglas, for 19 Element antenna?

Do you measure the VSWR of your antenna ? I would build one for sure later.

Hello Andrew. Ive downloaded the templates but they are in a .png format and seem to be very small when printed. Am I doing something wrong?

Any chance you could post the dimension of the reflector to the last element- I just want to make sure that I have the printed template dimensions abs correct before I build one - thanks- excellent videos!

When I print the pages of your template PDF's the ends get cut off by my printer. Can you list the measurement of the individual elements as I see many people asking you to do please?

andrew when i print it off the first one is in landscape and the last 2 are in portraits the video shows them all in landscape and mine doesn't get squat for signal im gonna flip those 2 pages and see can you send me some dimensions thanks

That is very interesting not sold on the max gain 16dBi for the quad though. I may just make it and let you know as i am picking up a network analyzer this weekend. As for next video me and my youngest son made a classic arcade cabinet over the weekend. As for antennas a friend has asked if I will make him a 5GHz helical and clover for his new FPV setup.

so what's the distance between each element? I'm getting angry trying to make one and I can't find element diagram. I don't have printer either. I just need a list of mesuarments

Would it be better to connect the yagi straight to the alpha and outdoor proof it then run a long usb cable to computer or just run a long lmr cable to the yagi?

Will it matter if it's printed as is? mine printed to the shorter distance on the paper

Andrew, I have a great application for this Yagi, I have all the parts for it and am busy getting her together. I just wanted to tell you that I wanted to replace the patch antenna that the internet provider in this rural area would normally put on the peak of your roof pointed at some farmer's grain silo where they have there WLAN array. I was wondering how much better gain this YAGI would have than the standard patch they would put up. We first declined service because only 1 megbyte per sec

Does this cover the frquencies around the center that would comprise "channels" on a 2.4 Ghz Rx in the RC modelling in the persuit of FPV (First Person View) There happens to be some 8 channels comprising for instance 2410-2430-2450-2470-2370-2390-2490-2510 for one Tx/Rx pair in particular. Would this Yagi be good for all or lend itself to some? BTW I see we are Google+ buddies there mate !

Could you use 3mm plyboard sheet instead of the perspex? It is MORE RIGID & offers good insulation from the radiation generated. It is also cheaper & more available!

Great video. Greetings from California

which is a measure of the balloon? and the thickness of the wire?

Você é o melhor! You are the best!

Could you use this for fpv in a rc system? Unfortunately I am always on a budget and this could be ideal for my needs.Many thanks.

how would I apply this for my cell phone?

My linksys router has 2 antennas, can I splice them together for use with one of your antennas... Or do I need to build 2 ?

Guys I was reading all the comments and no-one mentioned distance.... What Is the range of this antenna??? I have some open wifi around me and wandering if this can make it through 900 to 1000 meters? Does it???

Andrew - in your video, when you reach the assembly of the driven element, you use a block of wood to measure the depth of the element. You did not specify the measurements of the block of wood; you simply called it "your block of wood." Would you please elaborate on this? Is this measurement important?

Awesome! I've been seeing clover antennas all over for FPV, and just saw you you made a 2.4GHz version. Wonder what the performance would be in a can though.

Is not the antenna shorted now?

Wouldn't it be better with a metal pipe?

Hi @andrew mcneil, can you share the measurements with us? copper dimensions, space distances and drain pipe dimensions etc..

Could this design be used for 3G if the spacing is changed.

Andrew, how thick is that block of wood? (Sorry if you mentioned it and I missed it)

Do you have any dimensions for the spacing's for this one since i don't have a printer.

Very nice might make one.

Would you be able to substitute the plexiglass for balsa wood?

can we use copper tube because i can not found copper tape?

Could you tell me where is the link for downloading the template sir? Thanks before

You make a Quad Driven Element, this be a very good antenna for the new icom 905, on 2.4 GHz,

Next step: Yagi-biquad-cantenna!

Hello in antenna can be manufactured with PCB

Andrew very interesting video, I would like to make one of these to see if I can get better distance out of some of our video equipment. Can you please direct me to the link for the template?

i don't know if Andrew still alive, hi Andrew we can't find the template it's 404 Error :(, can you give us it again_? plz

why I don't see a balun? 300 ohm to 50 ohm?

hi, what size of wire for driven element?

thanks for the video Andrew Mcneil love all of your videos that I've watch so far educational wanted to ask a question but it would be great if it was by email

I'm looking at building this but in your opinion what is the greatest ant for far away wifi networks? I want the greatest distance possible .. Thanks bud

Can you pass along the measurements of each element and spacing and also offer where the calculations came from. I built it using the template with poor results. I also built another version I think 19 elements using copper wire for the elements based on another site which worked much better. I also noticed the spacing and size of elements where different that's why I want the measurements to compare against the template. Its possible the other one I built that works better might have been for a slightly different frequency, 2400 vs. 2450. Funny, the site using the yagi calculator(vk5dj) gives me different measurements too. I have been playing with several of these antennas including the $10 junk yagi you can buy on ebay. The best antenna so far is a antenna that has a can shaped with a metal rod containing several round discs going out about a meter. This antenna was used for the MDS band. I do have a commercial 1 meter dish that beats them all. I wanted a good yagi for portable use. Last week using a 11dBi patch/panel antenna from Pt. Judith, RI to Newport, RI line of site (9.2 miles) I had made a voice direct contact using a program called IP-Sound Ken