Homemade antenna please come in, guide 5

Antenna DIY I can't know here The technical parameters are very precise Requires very detailed CAD drawings There is a forum with wires You go down There is also a communication range of 300 kilometers This estimate you can't do Enhance the range of communication At the very least, you should start with the strong modification of the antenna You have not passed the most basic threshold of the antenna Besides, it's just a walkie-talkie relay 3 km is very good, you do 300 km ??? Big brother, you can't fight 300 kilometers??? It's also convenient, saving trouble, 2 cents a minute, and you play 6 yuan an hour.

I forgot to say that such a technical problem is only 5 points out of the way you really can't see it Others are too lazy to tell you so much Just pass by and persuade you to do it yourself.

This is a handset, right? Let's hold Yagi or Moxon. Moxon is easy to make, there is a size calculator on the Internet, the U segment is about two palms large, and the material is less than 1 meter thick copper wire.

300 kilometers by the machine is wishful thinking, at least 200 watts with a good antenna and a good environment can barely be done. Find a repeater, or if you have high ability, you can use a low-orbit satellite to transit.

DIY antennas are basically impossible, especially high-frequency antennas, are technically demanding.

1. Prepare an aluminum plate, the length of which should be slightly larger than the wavelength of the radio wave, that is, the reason is that the effect of reflecting the radio wave is better. Find the center of the aluminum plate by connecting the diagonal lines, and punch holes in it with a hand drill. This hole is reserved for the coaxial cable, so it is slightly larger than the cable diameter, and a 7mm drill bit can be used.

2. Fold the 2mm diameter copper wire into 2 diamond shapes of the same size with needle-nose pliers. Note that the perimeter of each diamond should be equal to one wavelength, i.e. one side is long. However, the side length of the diamond is also related to the thickness of the copper wire, and the electromagnetic wave of the wireless network actually used is not absolutely equal, so there will be n versions of the side length of the diamond when checking information on the network, and the side length can be directly made by 3cm.

3. After actual operation, you will find that even if the measurement is accurate in advance, the error may be more than 1 millimeter when bending the copper wire with needle-nose pliers, so it is useless to calculate it accurately. In fact, this kind of high-frequency coil has very strict requirements for the size of the antenna, of course, for personal DIY, there is no way to achieve high accuracy.

The core and shield wires of the 50 ohm coaxial cable are stripped and welded to the two "waists" of the diamond shape.

4. Cut the bottle cap of cosmetics to about 20mm high, the function of this bottle cap is to fix the diamond-shaped antenna, and keep the antenna at a specific distance from the metal plate at the back. The drawing used here sets a distance of 18 mm, so four 2 mm deep pits can be filed in the corresponding position with a round file, which is convenient for fixing the 4 sides of the diamond.

5. Use AB glue to glue the cap and the aluminum plate, the cap and the antenna, and the coaxial cable and the aluminum plate. Ordinary all-purpose glue can also be used, but it is not as strong as AB glue.

Finished wireless network card with double diamond antenna.

6. Disassemble the notebook, find the two feeders of the wireless network card, do not cut the feeders, connect 2 wires from the feeders, and connect them to the feeders of the antenna (above) to enhance the signal. When you don't need an external antenna, you can remove it again.

The wifi signal is not good to teach you how to make your own antenna, the signal covers several kilometers, and you can quickly and remotely rub the network.

Buy a wireless receiver and you can buy it at the computer point, for example, if you have an existing wireless network, you can manage 100 meters, and you can buy it at the computer point, and you can buy it at the computer point.

The materials to be prepared are: a standard solid copper wire (which should be found in every glove compartment, insulated or non-insulated), a common wooden screw, a tape measure or lattice ruler, and an electric soldering iron.

1. Wrap the copper wire around the screws to increase the signal strength of the antenna. The more turns you wrap, the better the wireless signal.

2. Then the reserved part and strip the outer skin of the copper wire about 1 8 3, make the copper wire into the same shape as the reinforced antenna to ensure the beauty of the antenna made by DIY!

4. Solder the finished antenna to the antenna base of the wireless router.

5. Finally, use the straw of this large cup of cola to cover the outside of the antenna to enhance its aesthetics. (You can also find other small tubes instead), DIY, focus on entertainment, affordable, practical, simple and convenient, that is, you want to move. Then I put on a little ink or lacquer, and it looks like something else.

6. At this point, the DIY antenna production is basically over.

If you just want to boost the signal, it's advanced enough,,, just find a way to connect his cable to the antenna of the wireless router.

It's a deep question.

Isn't this a small pot lid for TV satellite reception? Is it possible to make a router? I'd like to know how to make it if I could.

How to make your own antenna for w f.

Dear, hello, I am glad to answer for you how to make the antenna of w f Answer: wireless router self-made gain antenna method: 1. Find a can, of course, take the iron and aluminum, the iron is excluded, and the aluminum is easy to cut. Eliminate the brightness and bring your own pair of scissors.

If there is adhesive tape, prepare a little adhesive tape. 2. Cut off the bottom of the can and clean the inside. Wipe the water dry, taking care not to cut your hands.

3. After that, cut the can along the vertical surface opposite the opening of the can. 4. Then, stand upside down and cut the mouth of the can to both sides, taking care not to cut it off. For aesthetic reasons, the ends can be cut into semicircles.

5. Glue some sharp places at the cutting place with rubber locust tung cloth to avoid unnecessary safety hazards. Finally, it is set on the antenna of the wireless router.