a 17dbI Yagi Antenna? 

Flash forward 2023, so many things fit for purpose.

The 17dBi means it will have a very narrow radiation pattern compared to the 2.5dB dipole. Hence not receiving as many APs. Point to point the 17dBi antenna should be a better performer (after removing that coaxial attenuator!)

Another good video Andrew, will your new videos be out soon.

Nice video, I recently bought a Cyberbajt Directional YAGI 24-16 with similar (but a bit better) design, it works very well.

I had to come down here to react to the comparison between Omni directional antenna and a directional antenna. The only similarity is that they're both antennas and that's about the end of the video. There is absolutely no way you can compare access point contacts and have anything of it accurate comparison unless you turn the yagi about 5 degrees at a time and do a scan they will be far more overall access points when 360 degrees of scans are done. Exactly like aiming a flashlight at one wall and expecting to get light on the opposite wall and giving you a review of the flashlight.

You probably know this but if not it might help you. You can buy tripod bushes on Ebay. They are often called adapter or reducer bushes as they convert from the larger tripod size of 3/8th Whitworth down to !/4. A current price is about £3.20 for 5. Hope that helps.

Considering completely different radiation pattern of the Yagi and dipole, would be to compare the strength of signal from the APs heard by the Yagi and dipole while maintaining the same polarization. The difference in signal strength should give a good idea about the difference between the Yagi and dipole.

So.. just removing the 4m coax it improved the signal so much, its hard to believe it. From -75dB to -46dB on one AP. From -46dB to -30dB on another. List just goes on and on. I have very similar Yagi antenna I bought in like 2010 just to mess around. I remember it being extremely poor in signal, even lower than my old WN722n with 4dBi omnidirectional antenna it came with. I dug up this antenna from my store and I saw I have the same coax (which is exactly the same H155 so called "low loss"). I have 4.5meters of it. The design of my Yagi is a little bit different. It's the same shape of main element but it has brass rods inside the PVC tube. I will make some tests when I find the time once I cut the coax. I didn't have the knowledge back then so I assumed I just got scammed and never bothered to return it. Hell.. I don't have knowledge even know. It was really cheap, like 10 euros as of today.

The Netek supplier was a good find, but you might gain (sic) by looking up that H155 cable type - 49.80dB loss per 100m at 2.4GHz, so your 4.5m there should be about a 2.2dB waste. In the same vein, the Netek product listing does actually say that it has cable, albeit a lot less: "antenna with 1m H155 cable + N/female connector" and you can see it in the image as well.

Good morning friend just want to point out evendoe i am not en engineer but i read a long time ago that your supposed to have your coax cut at wave lengths to minimize your SWR (standing wave ratios )if you want look this up your driven element is usualy 1/2 the length of your wave length so if your element is 1/2 meter your coax should be 1 mt or multiples of your wave length not some guesstimate length and you should never make coils with your excess coax hope this helps fan of yours from Puerto Rico

Did you notice the SKY01E11 on the Yagi came in at 70% though whereas the dipole was showing 0% and dead? That's where these Yagi's excel is when they're pointed directly at the AP as they only have a small beamwidth and therefore you'll see less AP's than usual! One thing I do agree with is that cable is shite and needs to be either changed or shortened to get the best of the 17dbi performance from the yagi.

The clamps look like a down spout clamp... The u bolt comes clearly from the car parts shop sold as a exhaust clamp...

A Yagi is very directional. I would not just aim it anywhere outside the window and "test" how many SSIDs it sees. It's not a natural representation of its performance.

What is ROOFLY? It is ruffly. Do you drink your Coffy from a Coop or a Cup?

Can you explain about not needing a balun for the folded dipole DR? I can't find any reference for that, and don't see how you can avoid it.

i need to fix a antenna outside roughly the same amount of cable as this one. would i have more losr from using a long coax to my adaptor or mount the adaptor to the antenna then have a long usb cable. thanks for the informative content only been researching a few days and have learned so much from your uploads.

Really nice video thank you very much.

Hello mr andrew thanx a lot for ur tutorials to make wifi antennas i made multi elements i would like to ask you about the name of programmes u use for scanni,g thanx is there any anlyser with sou,d speech thanx

is the coaxial satellite cable works or not

good day andrew, I'm looking for a diagram for a yagi antenna on the frequency 1900..2100 mhz for gsm from telcel mexico thanks for your support

Another great video! Thx! Is the measurement accurate? The back element seems more distant to the first parasitic element than other elements. I've already commented the method but again, for a directional antenna, just the number of hot-spots is not an appropriate way to mesure the performance.

Andrew Why would they use DBI as a measure and not DBD ?? I understand that dBi is "decibels relative to isotropic radiator" which means that the radiator (an antenna, usually) sends the signal equally strong in all directions, including above and below. When in fact a beam is supposed to send it a lot more forward and narrower. Surely DBD gain over a dipole would be more appropriate? I guess a lower figure thou, so maybe I have answered my own question it done for higher figures.

any chance for a 5.8ghz patch Mini antenna?

Satellite cable is better than normal coax cable.

help us to make antennas pls master.

The strongest Booster for BT Openzone range up to 3 miles? I don’t think so.

OYE TUS VIDEOS DE LAS ANTENAS ESTAN BUENOS PERO PONLE SUBTITULOS POR QUE MUCHOS NO ENTENDEMOS NADA AMENOS DE VISTA SI Y SERIA MAS FACIL SUBTITULADO SI ASES ESO TENDRAS MAS LIKES Y SUSCRITORES.