How to make yagi wifi




















Antenna Plans. Build a 4 elements yagi Build 4 Elements Yagi. Gamma Match for 4 Elements Yagi. Gamma Match for 3 Elements Yagis. G7 Antenna Cutting Chart. Yagi Antenna Design U. S Bureau of Standards. Original patent design for Folded Dipole antenna. Edison Fong — Tri-Band Antenna for 2m, 1.

Build a 2-Meter Vertical Dipole Array. Service Manuals. Alinco DJ Service Manual. Icom V Service Manual. Yaesu FT Service Manual. Coax Attenuation Chart. SWR and Power Loss. Arduino Nano technical notes. National Semiconductor Voltage Regulator Handbook. Installing Chirp on Ubuntu Versa Series Radio Programming Software.

CentOS 6. Antenna Stacking Calculator. My Youtube. DIY watts RF dummy load. Diamond F22 restoration by capacitor replacement. Pencil Torch to continuous flow conversion. Nominal range 3 Elements Yagi at 5Watts. Building a Gamma Match Video Tutorial.

Sleeve dipole testing. Like Loading Tags 15 element high gain wifi yagi , 15 Element Yagi for 2. Leave a Reply Cancel reply Your email address will not be published. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits.

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Right off the bat the one individual that asked about having his modem in the basement with a rotating antenna on the roof needs a reality check. Take the dongle apart and connect a USB extension cable to it and mount it directly on the antenna assembly. Paper clips vs copper, at this frequency it's not going to make much difference, however the specific model was generated using 14awg copper.

Someone said glue it all to cardboard then cover it with more cardboard actually a strong and stable design, original author said build around popsicle sticks wooden , both are subject to absorbing moisture from the air and either can have a poor dielectric constant, I would suggest some kind of plastic they make popsicles with plastic sticks.

The lengths of the elements, the spacing between them, and keeping them all in the same plane and parallel to each other is the most important consideration. If you use the folded dipole make sure the folded part is perpendicular to the plane of the rest of the antenna and use ohm twin lead to connect to the dongle, but your SWR will probably be much higher, reducing your effective gain and possibly resulting in early failure of the dongle.

Horizontal vs vertical, after you have your antenna connected and have connected to some network you can try rotating it about its horizontal axis to see if you can get a better aspect on the other antenna more bars.

All in all though good job to Biotele, it's cheap, it's easy, and if done right will provide excellent results. I did not build this antenna, but I built 2 antennae very similar before reading this post, My son and I live almost 2 miles apart and either of us can stream p movies from the other's house during a thunderstorm.

Reply 1 year ago. Was the setup with your son line of sight, or was there any foliage between you? Was this able to extend the original wifi network to the second location? Reply 6 years ago on Introduction. Reply 7 years ago on Introduction. Thanks upon this project. For my recommendation, I would advise you to use a usb to Ethernet adapter then feed your router with Ethernet as usual. I'm a ham radio operator and have build many yagi antennas and am going to build this one.

Here's a suggestion. Then you do not need to print out the guide. Also realize there are factors outside your control so getting accuracy to about 1 mm is good enough for element spacing and length.

If you aren't that accurate, it will just decrease the gain some, but the antenna will still work much better than an omnidirectional one. Question 1 year ago. I still dont get where to put the wires on the natena I have USB wifi with external port for antena, I have the coaxial cable Bit did not see ani diagram where to solder them on the antena..

May be I miss something because of poor english, so please someone to help with a simple diagram on Paint. PS This looks exactly like an oldschool external TV antena. If I use one wouldnt be better?! Question 1 year ago on Step 4.

Question 2 years ago on Step 2. As others have pointed out, the impedance matching is done poorly and not even explained properly. I have added a picture of a matched element that also acts as an impedance transformer.

The 2. That means you use a 2in wire, solder the center of the coax to its center, then fold one leg in half and solder it to the shielding. See image. This is why those internal laptop antennas out of stamped metal have that shape. It's the quarter-wave hoof. Reply 2 years ago. Assuming your laptop is less than 20 years old, it will have USB ports which means you can follow the instructions as stated. Question 3 years ago.

How the heck do you make precise cuts? I have a dial caliper that measures up to 6 inches, and gets down to the thousandth 0. I can convert your mm to inches, but I still can't seem to find a non-tedious way to cut a 14 guage piece of steel wire to precise measurements.

I want to know how non-precise you can be with these, because not even a million dollar company with the greatest factory can give accuracy to a theoretical set amount of millimeter cut. Question 3 years ago on Step 3. I understand that skin effect is paramount to impedences and that if you increase the diameter of the driven element you can also increase the bandwidth and decrease the impedance to like 50 ohms and that a good measuring stick is your best friend in building these things as long as the math formula is good.

A tube within a tube allows you to adjust such lengths. Skin effect means tubes are better than wires which are heavier. BUT, where are the formulas for the driven lengths vs diameters and velocity factors of whatever cables?

Can someone please make a video with the instrucions in the comments, because its very difficult to follow. Can you give me a model of something acceptable? Reply 4 years ago. That is 6 MHz. Wifi he is describing is MHz. Take a look at a stepper ir. It is a huge antenna but very good. It is a loop like the formed paperclip. In case you are confused, the term meters is the actual physical wavelength in meters of the transmitted signal.

The lower the frequency the bigger the antenna has to be. It is factored on 1c, which is the speed if light, meters per second. Rounded to ,, you divide this by the frequency in cycles to get the full wave length. For 50 meters you are talking about a huge antenna. You can build an active antenna for just a receiver or use an LC network to tune a shorter wire but it will be compromised in ability. Hint: the antenna is a network, compromising of everything from the board connection point, all the way to the tip of the antenna.

Using coax, you will also need a balun. I'm an extra class ham radio operator and an electrical engineer. Look online for antenna calculators will be your best bet. Beverage antennas are great, especially for summer time noise from lightning static crashes but they are even bigger. Sorry for the delay on the post but I just saw this. By "cat5e" you mean RJ45 cable? I dont know which ones of the wires inside to connect to the antenna?

Why do I need a coax if I put an RJ45? Reply 3 years ago. Cat5e is the cable. RJ45 is to connector on the end of the cable, that can go on cat5, cat5e, cat6, etc. Ok, I built the antenna according to specification, but I am guessing I couldnt make the elements as accurate, I catch a signal from about 1km, but I cant connect to it. I am not an antenna expert. So if I buy a yagi antenna with coax cable it should work allright? By Biotele Biotele Follow.

More by the author:. About: Make a better Instructable, and the world will beat a path to your website. More About Biotele ». Attachments Yagi.



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