Table of contents:
2024 Author: Sierra Becker | [email protected]. Last modified: 2024-02-26 03:46
Imagine the situation: sitting with friends, watching football. But suddenly - trouble! The house antenna broke (has gone haywire). The match is in full swing! What to do? The way out is simple - you need to use your hands and a little ingenuity! A homemade TV antenna made from beer cans will help!
Find the following in the house:
- Two empty 0.75 liter beer cans.
- A non-metallic pin-shaped object about thirty to forty centimeters long (you can use a rolling pin, because it's an emergency).
- Several meters of coaxial cable (depending on the distance from the window to the TV) with a resistance of seventy-five ohms. Coaxial is a cable in which one core runs inside another. It is desirable that at one end there is a plug for connecting to a TV (since this is where the antenna from beer cans is connected).
- Electrical tape.
- Soldering iron (optional).
Start making
Wash the jars. Now attach your cable core to each of them. It is preferable to do this with a soldering iron, otherwise your beer can antenna will interfere. But if there is no soldering iron nearby, then you can simply clamp the wires incuts on the lids of jars. Now place the containers at a distance of seventy-five millimeters between the edges. Tape to your frame. It is also better to wind the wire to the frame so that it does not come off at the most inopportune moment. If there is no plug on the other end of the cable, attach one. Connect to TV. Voila! Homemade beer can antenna ready and working!
Device operation
Banks will catch the satellite (!) signal in a good frequency range. Within the city, the number of received channels will be quite large. The main thing is to successfully position the antenna, and this is the result of many hours of walking around the apartment with the antenna and climbing all the cabinets. For ease of attachment, you can place the containers on a wooden hanger. By the way, the device will not work as an antenna for the radio.
A bit of history
This design was discovered by Donetsk radio engineers. One day they noticed that Russian channels were being transmitted over the Kyiv-Rostov relay line. And earlier, only test noise signals were transmitted through it. And the antenna for catching these signals was probably made from what was in abundance in the laboratory - from empty beer cans. And so this simplest device appeared.
Why it works
The question of the reasons for the operation of such a simple design will be asked by many. Is radio engineering really that simple? Then why does the TV use a bunch of small and incomprehensible parts, while the beer can antenna works sowell? In fact, everything is not so banal. The bottom line is the successful coincidence of the cans and cable found in that fateful laboratory, when the resistance of 75 ohms fell on cans of 0.75 liters. And the ideal distance between the banks was chosen at 0.075 meters. Here the laws of induction and the interaction of material with electromagnetic oscillations come into play.
In general, use it! Now you can safely watch football without fear of accidents!
Recommended:
How to make an airplane out of paper: a step by step description with a photo
In the article, we will consider several original options for how to make an airplane out of paper, what materials can be used for such work. If you choose products using the origami technique, then first learn how to use the sheet folding scheme. If the model is voluminous, then a detailed description of the task will help to cope with the work easier
How to make a cash register out of paper at home
Children are very fond of themed games: they arrange shops, treat toys, build houses. They are very pleased when their parents help with interesting undertakings. Creative fathers and mothers make the most "needed" items for kids: TV, stove, car, cash register. These items are made of ordinary cardboard, but they help to bring to life the most interesting children's games
How to make an origami bird out of paper according to the schemes
In the article, we will consider how to make an origami bird out of paper with your own hands. We will provide some interesting step-by-step schemes, according to which it is easy and simple to assemble the craft. All origami is made only from square sheets. If you like to do such crafts, then make patterns out of cardboard by drawing them using a triangle. Clarity is incredibly important in the art of origami. If the error in the calculations is equal to 1 mm, then the figure will turn out to be already crooked and sloppy
How to make baubles out of thread? Learning to make stylish accessories with your own hands
Handmade braided bracelets - baubles - are very popular among teenagers and young people today. They are made from different materials: ribbons, thin silicone tubes, threads. Braided bracelets made of multi-colored floss look especially beautiful and bright. Our article is devoted to the manufacture of such an accessory. Here we will tell you how to make baubles from thread for embroidery
What can you do with beer caps? DIY crafts from beer caps
If you often drink beer or drinks from glass bottles, then you probably have a few caps from them. And you can use them to do a lot of cool things. And if you need ideas for inspiration, then in this article you will find 19 crafts that can be made from beer caps