Support me on Patreon: www.patreon.co... My eBay store: www.ebay.co.uk... Facebook group: / 1313077415524264 Email: andrewantennas@gmail.com
Пікірлер: 572
@juancarlosquintana21115 жыл бұрын
Wow ...when I saw the original video I thought exactly what you said. It is short circuited dipole. Then your video appeared in my tablet and you really explained the bad thing to that design. Only for a recomendation...I would use copper board and etched the center so there will not be a conection to the ground plane and reflectors. In order to achieve the long range of 3 km they will need and amplifier and a duplexer. If you or someone have a schematic or a design I would love to see it. There is a video where someone took a crystal from a old mobile to use it as a filter ....it will be interesting to see the modified gun with an amplifier and test the performance and gain....thanks for the video. I loved your scientific approach to the subject. Regards...
@texNoz6 жыл бұрын
4:36 to bypass the yacking and to get started.
@MrMeLaX4 жыл бұрын
Thank you.
@oblinacavanaugh45443 жыл бұрын
THANK YOU!!
@ewwtuberwatcher47913 жыл бұрын
Also. In NONE of the tests did he try to move the focal point to tune into the target. This is just bunk show.
@totheedgeacademyttea92455 жыл бұрын
Great video. I have just made one today:) I have set the first 3 Only 10mm Apart & then 32mm to the 4th one at 38mm. I have just done a quick test on my phone & the results are very good. My phone on its own only picks up x2 Direct Wi-Fi Signals & x7 Normal Wi-Fi Signals. When I attach the Gun I'm getting X7 Direct Wi-Fi Signals and x18 Normal Wi-Fi Signals. I'm trying to connect to my local Mc Donald's:) Sometimes you just have to try these things out to see if they work:) Great video.
@ai4ijoel4 жыл бұрын
NO, the driven element is shorted to the boom at DC only, but not at RF. This is the same with all the elements, the centers of them are all at minimum current points, so the only difference between grounding them or floating them should depend on how far from resonance the measurements are, including any velocity factors. If they are at the perfect lengths and spacings, their zero current points do NOT see the booms at RF frequencies.
@CodfishCatfish6 жыл бұрын
Not forgetting a 50ohm termination is probably more important. Testing the driven element to Director with s DC multimeter is not a valid argument. It's whether it presents a true 50ohm load. Look at a folded J pole antenna. It's a DC short with an infinite impedance at the antenna tip. However the 50ohm feed is near the bottom of the antenna and a DC short. In technical terms a transformer is a DC short however it's not to AC, ......RF is AC. Ok it's true your not going to get far with the driven element shorted in this way however I think the fundamentals of antenna design need exploring a tad more. Example your average Sky dish has an antenna about 15mm but its nestled inside the feed horn (can-tenna). Ultra directional however has a range of hundreds of miles potentially. Why not check the reactance, do a little J notation. 2m EME is a round trip of 750,000km and 23cm EME. Since 2.4ghz is in the 13cm band the potential for 10,000 miles is achievable IF both designs are capable. Having an excellent antenna at one side and the other possibly using a vertical to your circular polarisation antenna is 30db down perhaps as much as 60db. Build the design again and test the pair pointing at each other. Measure the thermal background noise and run this video again. Or Google 13cm EME www.vk3nx.com/13cm.html
@gabrielmendez9996 жыл бұрын
CodfishCatfish I agreed , the feed point must be near the center to "try" to match 50 ohms .
@juancarlosquintana21115 жыл бұрын
Just a comment....the so called gun antenna is like the one used for comertial MDS television cable. The elements are circular because the used polarity either vertical or horizontally. In that way the waves are reflected in any position...that is another problem because if you have a transmission where they used separated transmitters your gun will peek both and interfere with each other. So that is the reason where a bow tye antena correctly oriented will work as well. But with respect to the impedance referred a 50 ohm....since we are talking about high frequencies here and probably people here doesn't realice that these things should be designed as transmission lines using what is called a Smith chart and a process called matching the impedance seen at that frequency....this is not an easy stuff to be explained here unless you have seen the problem as a transmisión line. With this I just want to say is not to put a 50 ohm terminator plug....the antenna should be matched to a certain frequency to get the most possible gain. But considering this is a WiFi transmission where they used many channels and in your wifi router you may specify which one to use , the you should take the consideration to cut the dipole dish diameter acording to resonate a that frequency . I think they use 1/4 lamda for that. Kind like the dipole on the LNA of the parabolic dishes used in the 80's. So forget about 50 ohms terminators and design the size of the dipole cutted to that channel frequency. Or forget what all of this discussion I just mention....😊
@kreynolds11236 жыл бұрын
Thank you for the video and your suggested mod that improved the design. Although, i have a couple issues with several assertions made. 1) DC short != AC short. AC will have an impedance with either inductive or capacitive reactance. For instance, it is possible to connect both shield and center wire of a coax to a copper pipe with their connection points separated by 90 degrees, and have an infinate impedence at specific frequencies. 2) The possible distance. You yourself pointed out you were shooting through brick. Then in the original video, one can see it was winter. Low humidity means low attenuation, and no leaves on the trees. And then the original video had two of these antenna roughly pointing at each other. And lastly he erected one antenna on top of his roof. All I am saying is that one might be able to get long range under very special circumstances, and it would be helpful to list them but advise that many things can detract from optimal performance.
@JetGyrotech5 жыл бұрын
A short is a short... Good luck. I am surprised they even got a signal out.
@andrewmcneil6 жыл бұрын
I did enjoy the video and that car was just mad!
@thirdfakeofmoon71576 жыл бұрын
PLEASE make a discord server for us
@TheWebstaff6 жыл бұрын
That car was like something the props department would get for a mad max film!
@dulldusk6 жыл бұрын
I too like Kreosan videos very much for the entretainment propouse. =D
@aspentherealist39086 жыл бұрын
andrew mcneil is your site down?
@patrickwatkinsdirector23886 жыл бұрын
Replication Andy ;-), please can you offer some advise ? kzbin.info/www/bejne/gXrae5-YpqumZq8
@Graeme_Lastname6 жыл бұрын
Very interesting. Thank you. The only practical way to get things like this working correctly is to measure the VSWR. There are other ways but this is the easiest , simplest and cheapest so far as I know.
@visionofwellboyofficial5 жыл бұрын
The antenna is actually narrowband (narrow range of frequencies) so WiFi download and upload speeds will be different.
@visionofwellboyofficial5 жыл бұрын
FDD (Frequency Division Duplex) uses separate frequencies
@nihorothereal2 жыл бұрын
And they all build this antenna and "conclude" and "demonstrate" that it works for multiple kilometers. But it can not. Wifi protocol frame time is not waiting for more than 1.6 kilometers signal travel time. It will retransmit and then listen again, not wait enough and retransmit again. But happy to get a tip about the driver isolation. Do not want to burn some holes in wires or parts, so the smoke comes out.
@FindecanorNotGmail6 жыл бұрын
Didn't the 5 Km test in the original video use directional antennas for _both_ the router and the target?
@Ixquick9796 жыл бұрын
Yes but Kreosan used TV coax from the router to the antenna which is not good.
@-ahvilable-66546 жыл бұрын
Zara Hall why not good?
@thephantom14926 жыл бұрын
TV coax is 75 ohms, while wifi use 50 ohms. Wrong impedance cause signal issue. Beside tv cable is not rated for 2.4GHz
@thephantom14926 жыл бұрын
Due to the construction, the cable appear to be of a certain resistance. This is due to the self capacitance and inductance. Take an infinitelly long wire, connect a power source, and it will seems like it is a 50 ohms resistor. Take a shorter one and you get the 50 ohms until the electricity reach the end, then it go open circuit. Any change of impedance cause part of the signal to bounce back. The transmitter expect a 50 ohms load and get a 75. Part of the signal then bounce back in the transmitter. You now have a few things that happend. First only part of the power goes in the wire. Then the reflected signal goes back in the transmitter, which now have to fight it. This cause the transmitter to heat more, and to deform the signal due to the overload. Then the signal hit the antenna, which appear to be a certain impedance at a certain frequency. Again, if the construction is wrong, the impedance will not match the cable, and part bounce back, and you get even less signal out, plus that signal bounce back to the wifi card, part bounce again there toward the antenna, part continue and hit the transmitter, which heat more and deform the signal more. All that signal deformation cause some signal issues... Look up for cable impedance, antenna impedance and signal impedance matching. RF is kinda like black magic. It do not do quite what you expect it to do. ... Also, did you knew that the electricity do not use the center of the conductor? But only 1.3µm at 2.4GHz. Google for skin effect (quickly, as the frequency raise, the electrons tend to flow only on the surface of the conductor, leaving the middle with little or no flow).
@StuartVonTRT6 жыл бұрын
mismatch loss for 75/50 Ohm is not as big and given that 75 Ohm cables have generally lower attenuation it might be advantage to use them in low power systems. But yes, it depends on particular circumstances and it is good to know what you do.
@GadgetAddict5 жыл бұрын
I hope you'll also test his 3G/4G version. And I'm really curious about what he calls capacitive coupling and if it really works.
@andrewmcneil5 жыл бұрын
No it does not work but you can find people selling them online. Not sure if that part of the video was a joke lost in translation.
@GadgetAddict5 жыл бұрын
@@andrewmcneil It went over my head! Cheers for the info :)
@andreynovysh82893 жыл бұрын
You should try it. It seems that the result depends on lots of factors. Personally I was surprised. I've assembled the antenna from some rubbish on my backyard. With the antenna I've got significant improvements in connection (though I have 3g antenna but not wifi one)
@R3Cat6 жыл бұрын
The 5 KM figure was with line of sight and these antennas for both recieve and transmit! I know for a fact this is possible, because line of sight makes a huge difference. I say this from personal experience. With line of sight, i have managed to set up links of 10 km on just 10 mW.
@jihadian4 жыл бұрын
So am I ready to make one like this one? Will gonna work?
@drewhartley64724 жыл бұрын
Just out of interest what frequency were you using for a Ten km radio link using 10mw ?
@scienteer35626 жыл бұрын
Its perfectly possible to have a DC short on a good antenna(PIFA or slot antennas as an example). Its the impedence at the frequency of operation that matters. Clearly isolating on this improves the match, but it isnt a universal rule.
@eswnl1 Жыл бұрын
The problem is when connecting to an output that has any DC bias for driving an external amplifier. Any antenna that is a DC short will damage the output.
@enigmavoice4u5 жыл бұрын
I saw the video again that guy put directional antena on the roof of his house and u have in side of your home so may thats why he have strong signals, and the second mistake you told was right he can correct that .
@prof20int256 жыл бұрын
I'm not trying to be disrespectful, but why not test all antennas you made with Spectrum Analyzer to be sure that they run on 2.4 GHz ? It feels like an incomplete video.
@robertsmiczsmiczamplificat5936 жыл бұрын
prof20 int Agreed! More like use a sweeper or network analyzer. I don’t believe the dimensions are accurate. I have many 2.0-2.5ghz commercial disc rod/yagi antennas and the dimensions are much different. I don’t believe that antenna is properly tuned or optimized for 2.4ghz. A circular polarized helix antenna is much easier and woks much better. You can wind copper wire around a piece of pvc pipe and get a better antenna. Higher gain and a decent beam width. The half power points are more narrow on a properly designed helix design. A >15” long helix can get you 12dbi with 40 degree or less half power points. This disk rod yagi design will never make that spec. Unless it is swept and optimized. Still it will not result in a gain of 12dbi. 6dbi would be a stretch.
@HappySlappyFace6 жыл бұрын
Robert Smicz please make a video I will sure share it a round
@ventisca896 жыл бұрын
So you're saying helix antenna most likely better than that antenna in video for 2.4 GHz? I've made the antenna above and the distance is not great, less than 1.5 KM I have tested it.
@MrRasZee5 жыл бұрын
his antennas work dont care if they legal or not screw the neighbors
@rodv925 жыл бұрын
The best is to make an HFSS simulation and a VNA test. ideally in an RF anechoic chamber. At the 2.4 Ghz anechoic chambers are not that large to make.
@OsiasJrRoxas6 жыл бұрын
Good video Sir.Andrew. i'm excited to see you bulid your own version and design of this type of antenna
@SuperTechIT5 жыл бұрын
I was thinking they should be isolated, but i have also seen many antennas that when tested under DC current will appear as a dead short...cannot say which they used, but under your practical test, it was at least shown to work BETTER when the driving element was isolated. I like it when people independently test stuff that people post as being the next best thing since cold fusion.
@friedpickles79245 жыл бұрын
ET wants his gun back.
@alexanderbeliaev52444 жыл бұрын
1) Short circuit when measuring DC, not on the RF! 2) there is no current flowing through the central line when RF recieved 3) incorrect measurement, this is hightly directed antenna for the free space, not for the office.
@harry-ez2yd6 жыл бұрын
he said in the video, 500 meters not kilometres .
@fapasaurusrex6 жыл бұрын
tl error, it was 5km in english
@acestudioscouk-Ace-G0ACE4 жыл бұрын
I saw the video you are talking about and I knew there was something not right but couldn't think what until you put it right here. You may have saved my router's life! LOL
@mahmudsamiunlu6 жыл бұрын
The antenna needs to be 50 ohm for communication. But Reference antenna conductive and it 0 ohm resistance. Internal impdance of IC 50 ohm and the antenna has to be 50 ohm for the maximum power transfer.
@travisPiru6 жыл бұрын
Hi, great video as always! Have you ever considered making an "antenna basics" showing the physical principles behind antenna design?
@scootergreen35 жыл бұрын
Andrew McNeil. Every wifi signal is Locked today. I don't see anyway that this would work to get free internet unless you already have paid internet and you want to boost the signal with your wifi antenna.
@andreykarayvansky95496 жыл бұрын
Thank you for sharing your knowledge and for the experiments!
@zironph93304 жыл бұрын
im sorry but you need to understand that it is a directional antenna soo you don't need to base the number of wifi ssid scanned by the receiver what you need to do is to do a range test not scanning the number of ssid by itself,
@scootergreen36 жыл бұрын
The thing is every wifi signal is Locked today. I don't see anyway that this would work for that reason unless you already have paid internet and you want to boost the signal.
@frigginsweet806 жыл бұрын
The other vid was outdoors in a rural area that's how they got the 5km. In your vid you're indoors. So what your saying is it does work and it works best under 5km.
@prachayaputtapanasub43415 жыл бұрын
2.4GHz is microwave oven frequency. Don't amplify it.It will harm people
@bansheemania16925 жыл бұрын
What about 5g?
@prachayaputtapanasub43415 жыл бұрын
@@bansheemania1692 If it use approx 800MHz . (Harmonic frequency) The same effect of dielectric water resonance as 2.4GHz . I **believe** that it is the root of most cancers in the present day. However in the past, "The continuous of pulse" is too low (only "sound data" transfer for 2G ) In the present 3G-4G "the continue of pulse" for computer data is too high (ex. wifi 11Mb/sec) and this also has more affect to the "resonance" more than "intensity" of beams.(However "the intensity" for "resonance affect" must atleast beyond in some level see mathematical about Orders&Series then multiply by time)
@prachayaputtapanasub43415 жыл бұрын
@@bansheemania1692 It can cause no harm with Li-fi that use Lights or Infrared(GHz) instead of Microwave water resonance 800,2400MHz) PS.Except sending the red Light (Д=700M or F= 4.3x 10^17Hz) (c=FД ) in resonance frequency like 800Mbps or 2.4Gbps or harmonic still harmful
@melindadawn55 жыл бұрын
@@bansheemania1692 5G is a military weapon.. Plain and simple. It's the exact same technology used at the airport with those full body scanners. It's harmful. As is 4G 3G and the rest. You usually don't see the damage for 10-15 ish years. LED lighting is another creepy weapon that can pick up crystal clear audio kzbin.info/www/bejne/np3MeXWbeJammdE Any claim that 5G (or any G of internet thus far) is not harmful or that it's not tested, is BS. The damage these things cause has been known for decades. The frequencies used with 5G are the same frequencies used to induce diabetes in rats. And all G spectrums are used as sterilization. Sure they're may be beneficial and safe uses for these technologies, however, idiots use them. And they've been handed to idiots to use, as weapons. Period.
@bradmorgan9116 жыл бұрын
So it took more than 13 minutes to say the antenna doesn't work. Thanks for that.
@jamescatlover1235 жыл бұрын
It works for 4G signal. People in my country(PH) are using this in their modem.
@holymacaroni89125 жыл бұрын
For real?
@andrewconde9 ай бұрын
Short answer: yes Long answer: the entire video Yes its legit, i use a bunch of aluminum tin-can, cord, wifi extender, bolts and nuts the range is extended up to 100sq meters or more
@ridesvideozone7279 Жыл бұрын
Very very clever video, from a real technician. The thing to connect all elements together shotcircuiting is a real stupid mistake from the russian guys, shows that they don't know the way a Yagi antenna works.
@THETECHIETECH6 жыл бұрын
Not tried wifi gun yet, but i have built antenna and used GSM and 3g 4g frequencies and they are really good. They even catch up signals far away 30 to 40 kms away. As this design is yagi model. It may work.And i disagree from narrators some points.You say parasitic elements must be isolated, but yagi theory says that elements have a node (zero rf at centre) so it can be connected to metal boom.
@juancarlosquintana21115 жыл бұрын
But no the dipole .look for an vhf tv antenna and you will see why the dipole is isolated. Or if you love to strip LNA from parabolic dishes, you will find the small antenna in the wave guide is isolated from the chassis or metal body and has a hole to conect to the electronic board inside the LNA....
@jbezzaplays5 жыл бұрын
original video he put the antenna on his roof also its a directional antenna testing in garage is bios, should replicate the actual video to make it fair
@SaintSaint5 жыл бұрын
Thanks for the meters to feet conversion. I'm trying to switch to Metric... but I have 30 years experience with Standard. Standard makes sense if you're doing a great deal of fractions... however, I'll admit that(other than cooking), we don't do bother with fractions. Metric makes sense for almost everything and I wish it was taught first in school.
@sarchlalaith88366 жыл бұрын
"I'm now going to show you the problem with..." I WISH YOU WOULD!
@theo23784 жыл бұрын
7:33 Solution starts from 7:51
@wiseguy72805 жыл бұрын
hi Andrew, thanks for this. I've always been interested in the "how and why" so I have a few questions: 1) do the plates need to be copper? is the conductivity of copper a benefit? 2) you say you've isolated the main plate but they are still attached by that wire? 3) maybe a bit off topic but I have two channel master tv antenna mounted on a mast, one above another. They are on a 30 degree angle from each other (I've experimented with them parallel and up to 90 degrees to each other. 30 degrees seems to work best) Each one is about 2x2ft so I have about 8 SF aiming in the direction of the sources, whereas a yagi design has very little frontal area but perhaps has more of a chance to lock the signal since its longer and deeper. Which is a better set up? thanks.
@alexschneider7755 жыл бұрын
You unfortunately forgot the primary reason they were able to get a 5km range from the antenna; They're native Russian and their WiFi was powered by the power of Putin.
@sheadreamz2 жыл бұрын
I also built one and couldn’t get it working I think there needs to be rubber in between each copper ring and the boat they’re attached to is steel that has way to much resistance. Solder a small wire to each individual plate through a hole drilled close to the bolt and you can use a plastic bolt but either way, I feel the steel bolt is slowing the flow of signal to be cut from Wi-Fi. Small wires for small voltage right? My theory is too much resistance in the steel stop the flow of signal from Wi-Fi
@CreeperOnYourHouse6 жыл бұрын
the 5km claim was with 2 wifi guns, one on either end
@matevzmerhar37102 жыл бұрын
I made similar antena and connect it to router with original three antennas. I disconnected one original antenna and connected this wifi gun antenna. There was no difference in signal range. So not working.
@Accumulator16 жыл бұрын
Make the driven element a copper ring riveted on a non-conductive disc to isolate the center wire from ground. However building this design is a waste of time.
@racketman2u6 жыл бұрын
great video, as is the reference video it discusses, and the comments below; They all show what a complex field this really is!
@jassemalbasrawi6042 Жыл бұрын
Why is there no Arabic translation? I love you, a new follower❤
@IGORGOUZENKO2210 ай бұрын
استعمل auto translate
@warclan54294 жыл бұрын
Impedance is quite important. don't try antennas with bad impedance or obvious isolation. as the op mentioned if you use an amplifier it can burn. baby burn and eventually damage the receiver electronics
@AhamedBauani6 жыл бұрын
What? Singlal masurement with percentage (%) scale ??? RIP wireless world :(
@Jon_G6 жыл бұрын
Thank you for taking the time to make this video! Regarding the original video I was also wondering if there's any merit to the way the phone's antenna got connected to the "wi-fi gun'', I mean that repeating bending of the signal wire at 90 degrees to form something like a spiral?
@tommiller45544 жыл бұрын
Well now you are speaking about putting shrink wrap on the boom. Well if you go back to the video in question you will notice him cutting down a wall anchor. Which I do believe you may have missed because he did in fact isolate the boom !!!
@ricande6 жыл бұрын
Short answer to title of the video: NO.
@ClayShoaf6 жыл бұрын
ricande this post needs more upvotes
@ssxforever98356 жыл бұрын
Thx for simlifying this boring video !
@radleyanaya95526 жыл бұрын
Yes it does work! Watch the entire video!
@abhijitbera0076 жыл бұрын
radmation how ?
@radleyanaya95526 жыл бұрын
The wifi antenna built here does indeed significantly boost the signal, however it isn't as far as the other video claims. But yes it does create a stronger connection.
@RevGunn-jq3cq6 жыл бұрын
Excellent!!! I Iook forward to seeing your design.
@adaminsanoff6 жыл бұрын
To my knowledge all elements of yagi antenna must be isolated from anything.
@ralinknovisad5 жыл бұрын
Bad knowledgement..
@haynbong6 жыл бұрын
Is this good for home defense just in case they ban firearms in America
@jackconway30426 жыл бұрын
What phantom said...same reason long long extension 120amp cord developes resistance and creates heat/fail
@paulmillard11305 жыл бұрын
The disc size can be as many wavelenghts as you wish which in this case has so many factors as to go with best guess.
@mscir4 жыл бұрын
Wouldn't a parabolic dish the same diameter as the largest disk collect just as much energy as this antenna?
@petersmountainonejreaper66886 жыл бұрын
No cause he had one pointing back at the antenna that's how his distance went longer he said.
@MICHAELCARACAPPAJR6 жыл бұрын
Thanks for the detailed video. I would live to build an antenna and have done a fair amount of research and always got confused when it came to the elements. Out of curiosity, the video you're referencing bent the end of the wire into a square spiral and held it near his phone to increase the wifi range of his phone. Is that possible?
@sandhyasai1133 ай бұрын
Same question bro
@earlgood15216 жыл бұрын
I was sure this antenna wouldn't work properly without insulating the active element . Also5 kilometers was a bit outrages for its range .
@Alkaris6 жыл бұрын
You clearly and obviously missed the part where he used a TV Aux cable designed for TV analogue radio waves to significantly boost the signal over a longer distance.
@ridesvideozone7279 Жыл бұрын
I have one question: do you agree with the way the russian guy did, to gove wifi to the mobile phone by doing a simple spiral?
@andrewmcneil Жыл бұрын
simple answer, no
@ridesvideozone7279 Жыл бұрын
what would be the best option to give wifi to mobile phones? connect the antenna to a router?
@johnhill57456 жыл бұрын
Thanks for testing that for us, good video.
@Arx-qy1qc6 жыл бұрын
You are missing that they were using 2 wifi guns to connect to each other in the original video.
@airamcarmonaazueta6594 жыл бұрын
I have a question if i can use PCB boards to build the antenna
@VanDerLaars4 жыл бұрын
I didn't see any change that was made to the antenna.
@justthisguyyouknow6664 жыл бұрын
Thanks for this, I was wondering why the other videos I saw seemed to short out the cable.
@Abracastabya5 жыл бұрын
Could someone please make a list of all the materials/best materials to make one of these and their measurements? I'm thinking of creating one for a little project to keep me occupied, it would help a lot, please and thank you. EDIT: It would also be helpful to know how to attach it to a router, please.
@akobenadinkrahene21535 жыл бұрын
Nice save!
@gpowerdragon98524 жыл бұрын
I have the exact same Wi-Fi gun except plastic shimmy on the driven element and made of aluminium so it's kind of potato it's not really good the pics up the nearest wifi only I checked with the multimeter the driven element is not in contact with the rest
@19rocket646 жыл бұрын
Too funny, I just watched their vid late last night... and I immediately thought of you. It would be interesting to test on your equipment against your compact yagis.
@johnbravo75426 жыл бұрын
I like your magnetic wall mount tool holders
@carolyngordin60912 жыл бұрын
NEVER WAS A MECHANIC JUST SF CHRONICAL'S NUT
@kasperlavandia41075 жыл бұрын
can someone explain the physic behind this antenna? why and how do the diameters and spaces in between the plates matter? wouldnt that only be important for transmitting? why is it important for receiving? a satelite dish receives perfectly and its built with just a big backpiece to catch the waves right?
@rawtec775 жыл бұрын
these measures are important for specific frequencies, do your research ;]
@kasperlavandia41075 жыл бұрын
@@rawtec77 of course i will. but its important to share knowledge so why dont you just explain it to me or post a link to a helpful website? gaining knowledge ad helping others to do so should be natural for eveybody
@Dark-Wisper6 жыл бұрын
Can you combine an open dipole bow tie style antenna with a cantenna? Would really love to see that in a video!!
@tubastuff6 жыл бұрын
Instead of copper disks, why not use single-sided PCB stock? Then Isolation is a simple task--just scribe a ring into the copper foil of the isolated element.
@user-ef5js2fe8x6 ай бұрын
can u make a detailed video on how to make it just like that, pls my wifi is very bad from 75m away, if u could please list the things u used and the lengths and widths of the items thank u
@bumfie5 жыл бұрын
Tried this years ago with tinfoil Cone youll get about 100 of them out of a role of alcan aluminium . £1:00 out the £ shop Increased my distance and strength .was well chuffed Note you can use the spare alcan for a tinfoil hat . :)
@matty312726 жыл бұрын
What exactly did he do to isolate the main driven element? It's the entire disc isolated from everything, or...???
@WorBlux6 жыл бұрын
A good yagi can get 18db of gain, which should be plenty to shoot a few kilometers.
@andrewmcneil6 жыл бұрын
A good Yagi would under the right conditions
@elierdjayjacobonohsurathor9975 жыл бұрын
me wondering how the hell that antenna increases the directivity.
@amyasseektruth82466 жыл бұрын
You made a big mistake... the gentleman clearly says - 500m not 5km. @3:53
@ernestoditerribile6 жыл бұрын
Please test the sunhans 4 and 10W amplifiers. The 4W seems to work. But the cheap Chinese amplifiers seem to have a bigger range. But lower WiFi speed
@manp10394 жыл бұрын
you referred to the largest disk as a reflector and the second to largest disk as a driver. What if you isolated the reflector instead of the driver disk? And what if you did that by switching the wires going to the disks, either like either with the driver disk isolated and then again, instead, with the reflector disk isolated?
@Luijingofficial Жыл бұрын
0:12 wifi GUM
@MKVNiX4 жыл бұрын
He is indirectly telling that, it's KREOSAN's channel
@heliarc51862 жыл бұрын
My question is... I notice the copper plates are isolated between the wires.. or seperate. but wouldnt the bolt and nuts cause interference? Do the 2 main non parasitic plates need to be insulated from the rod>?? or does it not matter
@jafinch786 жыл бұрын
I totally was thinking about you when I watched the video also. I also thought about a University that constructed a longer yagi like yours, though similar to this, and I don't recall the University off the top of my head.
@jafinch786 жыл бұрын
Cheers on the review! Much appreciated. I was thinking using your longer yagi on perflex with foil design specs in this style you just demonstrated in the video. My thought as I noted in their video was impedance matching (steel seems would be higher resistance), plastic rod and screws was my first thought or of some sort threaded rod like copper though not so common as maybe using brass and the reflector, i.e dish or trough if in more like your bowtie antenna shape or elliptical. Makes me wonder what a spiral conical antenna in a strip would act like versus a wire too. Thanks again for the video review! All the best!
@jafinch786 жыл бұрын
Makes sense to use the more equivalent yagi in a can design for compare and contrast I'm thinking. Most aren't licensed amateurs or professionals I'm guessing and laws as well as enforcement varies depending on jurisdiction.
@leebruce74776 жыл бұрын
loved it andrew
@iglitalelli39546 жыл бұрын
I am glad you readed my coment and thanks for this quick video.
@ellisgl6 жыл бұрын
I would use nylon nuts and threaded rod.
@kensmith56946 жыл бұрын
Nylon threaded rod is not very strong. There are many better options available. www.mcmaster.com/#threaded-rods/=1cn8i6c Hopefully it is not too late for the comment to help.
@ellisgl6 жыл бұрын
Ken Smith the reason I said nylon, was that it was the first non conductive threaded rod type I could think of.
@kensmith56946 жыл бұрын
Others may want to go down the path. We can offer a bit of help. Things made with 2 metals touching don't work very well outdoors. In general, dark colored plastics survive the sun better than light colored. Polycarbonate is strong but goes bad in sunlight. Acrylic does quite well in sunlight but is not strong.
@networkservices31216 жыл бұрын
Why go through all that you can get wireless backhauls for under 100.00 that can reach out to 22km.
@kensmith56946 жыл бұрын
Network Services: For some it is a hobby. For some it is a lack of money. For some they want to know how it works.
@alchemicalshaman5 жыл бұрын
It's a foolish thing to assume Kreosan's demonstrations don't work. They are almost all based on the earliest discoveries of electricity involving high voltage and radio frequency. Spark gaps for wireless charging via matching coil/antenna. Old news. I've seen oil behave oddly with super high voltages. I can verify almost all of the things he has done on a textbook level. Either Kreosan is the smallest man in Ukraine, or you built a shrunken version of his waveguide. That is not the proper dimensions for that style of antenna. It's focus is on catching a portion of a wavelength. If it's off by 5%, it won't work properly.
@amsurg Жыл бұрын
Very very informative. Thank you
@socrates_the_great62095 жыл бұрын
How do you "isolate" the drive element? If we knew we would not need to see this video - we would be as much expert as you.
@johnphillip63284 жыл бұрын
It's actually a yagi antenna
@FindecanorNotGmail6 жыл бұрын
The antenna does not look in closeups like it was built to spec. The front disc is farther away than it is wide! Disc diameter should be 37 mm, distance 29 mm between discs, 1mm thick copper. Pause at kzbin.info/www/bejne/hJyQn52Vd9yieKc
@RJ.834 жыл бұрын
i think you are jealous of them , i made one just like what they got and it’s working perfect
@manishmagar72134 жыл бұрын
Thank You hope my also work perfectly ❤️🌹 I am also building bro 😊❤️
@hadochaddockson42906 жыл бұрын
i've done 5km during winter. so dont know what this guy is talking about. done more then 5km as well but at 15-20% range at 10km
@JohnGuest456 жыл бұрын
The driven can be at dc ground potential as long as its fed and matched correctly. Building this antenna is a complete waste of time, effort and metal ;)
@learninghistory59466 жыл бұрын
Great info. Do You have recommendation DIY WIFI Such as this one?