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Kako narediti svojo FM radijsko anteno | Osnove in vaje o domačih FM antenah

Date:2020/11/17 16:51:43 Hits:




"Is it too expensive to buy FM antennas from Wal-Mart, Alibaba, Amazon? Why not DIY a simple FM antenna? This DIY FM antenna production and installation tutorial article provides the most complete DIY FM radio antenna tutorial method. You can learn how to DIY a good radio FM antenna step by step through this chapter. We will also provide you with a calculation method of the length of a DIY FM antenna and the tools and materials you need to prepare when you want to make a homemade antenna, before installing DIY FM radio antenna, when installing DIY FM radio antenna, and all the matters needing attention after installing DIY FM radio antenna, let’s take a look! ----- FMUSER"


vsebina


  1) Before DIY FM Radio Antenna
  2) How to Make An FM Dipole Antenna Design?
  3) Why Do You Need To Make An FM Antenna From Speaker Wire?
  4) Simple DIY FM Dipole Antenna Design
  5) DIY FM Antenna Method for Beginners
  6) DIY FM Antenna Method (Advanced Version)
      M1 Uporaba koaksialnega kabla       


      M2 Using Speaker Wire

 7)  DIY FM Antenna Metoda V Zaključek
 8)  How To Make A VHF FM Folded Dipole Antenna?
 9)  How to Make a Simple Antenna to Improve the Reception of an FM Radio Receiver
10) How to Get More Channels With A Homemade Antenna?
11) How to Build a Homemade Radio That Really Works



▼ Are You Looking For The Answers To These Questions?


● How to DIY FM antenna Step by step...

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● How do I calculate the length of a DIY FM antenna?

● How to make a good radio FM antenna DIY...

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● How to make an FM antenna from speaker wire, etc…


We Cover All You Need In This Page...


If you are looking for the best FM signal for your stereo radio, you will need a good antenna. A good FM antenna does not have to be expensive and can be made with simple tools that any do-it-yourself person can accomplish. 


Po Wikipedijije FM dipol antena is any one of a class of antennas producing a radiation pattern approximating that of an elementary electric dipole with a radiating structure supporting a line current so energized that the current has only one node at each end


Of course, if you really think that the materials around you are not enough to make a powerful DIY FM radio antenna, you can get more practical information from FMUSER about how to make an FM radio antenna, or buy a cost-effective FM radio antenna directly from FMUSER>More


FMUSER is a one-stop FM broadcasting equipment manufacturer and supplier in China. They have a variety of broadcasting solutions and can easily customize all audio and video transmission solutions for you.  >More



#Install the Dipole Antenna FU-DV2 - FMUSER



What You Need to Know About the DIY FM Radio Antenna


The dipole antenna consists of two poles or parts. For a half wave dipole each leg of the dipole will be an electrical quarter wavelength long. The length of the dipole is determined by the frequency of operation. The FM broadcast band extends from 87.5 MHz up to 108 MHz. This is quite a wide bandwidth to be covered by a resonant antenna such as the dipole antenna, but as it is only used for reception the performance at the band edges is not as important as if it were to be used for transmitting.


The basic design for the FM dipole antenna is shown below.

# Basic half wave dipole antenna


Each leg of the dipole antenna is joined to the feeder, this can either be open wire / twin feeder, or coax can be used. Strictly speaking a balun should be used when coax or coaxial cable is used. This is because coax is what is termed an unbalanced feeder, i.e. the outer shield is connected to earth and the antenna is balanced. However for this application, no noticeable degradation should be seen and the VHF FM dipole antenna should operate quite satisfactorily without one. In this case the inner conductor of the coax is connected to one leg of the dipole and the outer conductor (braid) of the coax is connected to the other leg of the dipole antenna.



Audio and Video Solutions >More


Ker smo že imeli nekaj koaks kabla, ki je bil nameščen okoli hiše, je bila naša antena priključena na koaksacijski konektor, na koaksalni kabel pa je bila pritrjena različica parjenja. Opazimo, da dvojni podajalnik, kot je tisti, ki ga tvori fleks, ne deluje dobro, če se usmerja na dolge dolžine skozi hišo, izgube signala pa se bodo povečale - bolje je uporabiti coax, saj na to ne vplivamo na enak način.

Opomba: Pri namestitvi antene, kolikor je to mogoče v strešni prostor, se antena mora oddaljiti od kovinskih predmetov, ker bo to zmanjšalo nivo signala. Konci antene so še posebej občutljivi na bližnje kovinske predmete.

Anteno smo postavili v podstrešje ali streho. Ker veliko VHF FM postaj te dni uporablja vertikalno polarizacijo, smo dipole namestili navpično: en konec je bil pritrjen na priročen žebelj v leseni zožitvi strehe, drugi konec pa zadržan zaradi teže. Koaks je bil voden pod pravim kotom - kolikor lahko v teh okoliščinah!

<<NAZAJ

How to Make An FM Dipole Antenna Design?


To make an FM dipole antenna design, you need to pay attention to the details of simple to construct DIY FM dipole antenna design that can be built easily and used for indoor reception of broadcast FM signals.


One area in which dipole antennas are often used is for the reception of VHF FM broadcasts. Many Hi-Fi tuners and other radios have input sockets that will accept the input from a coaxial feeder, and where no external antenna is used, a dipole antenna can provide an excellent solution.

The FM dipole antenna is most likely to provide greatly improved reception over many other improvised solutions that may be used.

It is quite easy to make a simple DIY FM dipole antenna. They can be made in a variety of ways and for minimal cost. They may prove to be the ideal solution for an internal FM antenna, possibly in the attic or roof space, or they may be used when a temporary antenna is needed.


If they are to be used for internal use, then there is no need to use expensive materials to ensure they are not affected by the weather. Instead of internal use, the DIY VHF FM dipole can be made from commonly available materials and therefore the cost is likely to be minimal. It may even be possible to make a simple FM dipole using items that may already be in a junk box, or in a workshop or garage.



Why Do You Need To Make An FM Antenna From Speaker Wire?


FM radio receivers need an antenna to catch the FM signal that is sent from the FM radio station. Every FM station has a very weak range of supply. Usually, the range of the covered distance is about 70 miles. So, if the radio receiver is any further than that 50 Miles the FM can't reach the receiver very well. IN that case, a radio antenna is required. You can make an FM antenna out of a speaker wire also. 


Opozorilo:

●  If your antenna is placed outside, you should implement some form of lightning protection.

●  Antennae that are placed outdoors should have weatherproofing measures (e.g., waterproof coating) in place.


Nasvet:

●  Both antennae constructed here are "balanced" and will be inconvenient to connect to the typical "unbalanced" telescoping antenna.

●  Coaxial cables and speaker wire are both fairly cheap. If you already have the proper tools to create your preferred antenna, you can make an antenna for a fraction of the price of purchasing a new FM antenna.


<<NAZAJ

Simple DIY FM Dipole Antenna Design


Za izdelavo preproste DIpolne FM antene je potrebno le nekaj elementov. Običajno bodo to:


●  Twin flex - twin mains flex is idea but we used some old speaker flex.

●  Tie wrap - to secure the centre of the dipole and prevent the flex opening out beyond what is needed.

●  String or twine to secure the ends of the dipole to relevant fixing points (if required).

●  Connectors - if it is to be connected to coaxial cable.



# Components required to make an FM dipole antenna


Prednost uporabe omrežne napetosti je, da je ta vrsta žice, če se uporablja kot podajalnik za radiofrekvenčne signale, precej blizu približevanja 75 ohm dvojcu ali odprtemu podajalniku. To je priročno, če je potrebna primerna dolžina. Za izdelavo naše dipolske antene FM smo uporabili nekaj poceni zvočniške žice.



# FM dipole made from twin flex


Da bi sestavili VHF FM-dipolno anteno, bi morali najprej kabel izolirati žice, ki sta ločeni drug od drugega in se razpreti. Nato je treba sredino pritrditi, da preprečite nadaljnje odpiranje kabla. Eden od načinov za to je uporaba kravatov, kot so tisti, ki so na voljo pri večini elektronskih komponent. Dolžina žice, ki ni bila razcepljena, se lahko nato uporabi kot napajalnik za anteno.



# A tie wrap can be used to secure the centre point of the FM dipole antenna


Skupna dolžina antene naj bo približno 150 cms, torej vsaka noga mora biti 75 cms. Zaradi te dolžine naj bi se resonančna frekvenca nekoliko spustila v spodnji polovici radiodifuznega pasu, vendar so pogosto bolj priljubljene postaje v tej regiji. Če je potrebna višja resonančna frekvenca, se lahko antena nekoliko skrajša.


Dolžino je enostavno izračunati iz ene od naslednjih enačb:


length (metres)=150  Aflength (metres)=150  Af

length (inches)=5905  Aflength (inches)=5905  Af


Včasih se enačbe v uporabljenih konstantah nekoliko razlikujejo, saj je to odvisno od različnih dejavnikov, vključno z uporabljeno žico, okolico, frekvenco in podobno. Vendar je zelo dobro izhodišče in vsekakor dovolj dobro za izdelavo FM dipolne antene.



FM Broadcast Solutions >More


The ends of the wire can be knotted as shown to enable it to be attached to some twine or string to set it up on a loft space, etc. If this is done, the length should be taken to the extremity of the wire and any wire that is part of the knot or doubled back should not be included in the length. The knotting of the wire will add some inductance to the end of the wire, possibly making it a little long, but it should be fine for reception.



# The wire end of the FM dipole is knotted

<<NAZAJ


The Fastest FM Homemade Antenna DIY Method for Beginners (Three Steps Only)


▼ Korak 1. A Basic Dipole Antenna


Opomba: A good place to start when making an FM antenna is with a 100-foot roll of 300-ohm dipole wire. This can be found at most any audio store and most department stores that carry audio electronics and supplies.

You will be constructing a T-shaped antenna that will attach to your wall as high as possible. The top section should be at least 3 feet long, but an ideal length would be about 15 feet.



FM antene na zalogi: FU-DV1 FM Radio antena. >More


Cut the ends of the top section and bare the wires on each side. Twist them together and attach this length to your wall.

In the center of your top section, make a cut in the lower wire of the dipole and strip the coating from each side. You will have two bare wires pointing down.

Cut another piece of dipole wire, bare the ends on both sides, and attach one end to the wires pointing down from the top section. Attach the other bared wires onto the antenna ports from your stereo. You basic dipole antenna is complete.



▼ Korak 2. A Better Dipole Antenna


Opomba: Boste morali zgraditi preprosti X okvir iz lesa, ki veže centrov skupaj z vsakim kosom merjenje 42.4 centimetrov kot idealno dolžino.


The dipole wire needs to be split in the center, then attached to the frame going in opposite directions.

This process makes what is called a closed-loop antenna, as there are no breaks in the wire and both leads are attached to the antenna ports on the back of the stereo.


Prednost tega modela je, da se antena z nosilno ogrodje lahko premika po prostoru za pridobitev najboljši sprejem.



▼ Step 3. Using What's Available


Opomba: FM stereo and regular television signals run very close to the same frequency.


Any TV rabbit ear antenna also can be used as a basic FM antenna. To that end, any roof mounted TV antenna also can be used as an FM antenna. You may have to cut and strip the wire, but you also will gain superior FM signal performance.


<<NAZAJ


Advanced Version of FM Antenna DIY Methods (Practical as well)


Getting the appropriate signal from a radio station turns into a challenge while you are at a considerable distance from the station. In that case, you cannot but go through some additional procedures to ensure a comparatively better connection.

Then making an FM antenna will be one of the best alternative solutions. But in this state, one new challenge will appear to you. The challenge is nothing but the making of an FM antenna in hope without the help of a technician.



You can follow several methods to make an FM antenna in the home. But among them, the most prominent and easiest will be to make an FM antenna from the speaker wire. It’ll be the most economical and save your time the most. Also, provide you the maximum benefit. You can do it by following some very simple steps.

So, here I will give you more quick tips on how you can DIY homemade FM antenna. Follow these and get the best signal in the best way.



Metoda

 1

    Uporaba koaksialnega kabla

▼ Korak 1. Gather the necessary materials


Opomba: In order to make a vertical antena od koaksialni kabel, you will need the following materials:


● 50 ohm (or 75 ohm) coaxial wire with copper shielding

 FM receiver with a coaxial connector

 3/8-inch copper tubing

 Wire cutters

 Žaga za kovino

 Soldering equipment




Korak 2. Calculate the length of your antenna


Opomba: This will determine both how much of the coaxial cable you have to strip and how long your copper tubing should be:


  Divide 468 by the frequency to which you want to connect (e.g., 468/108MHz would become 4.3).

  Divide the resulting number by 2 (e.g., 4.3/2 would become 2.15).

  Multiply the resulting number by 12 inches (30.5 cm) to find the antenna length (e.g., 2.15*12 inches would become 25.8 inches).




▼ Korak 3. Cut off one end of the coaxial cable


Opomba: While you'll want to leave one end of the coaxial cable intact in order for it to serve as the connector, the other end will need to be removed.


  You can use your wire cutters or a hacksaw to do this.




▼ Korak 4. Strip half of the antenna's overall length from the end of the coaxial cable


Opomba: You'll need to remove each layer of shielding until you arrive at the white layer surrounding the coaxial cable itself.


●  For example, if your antenna is supposed to be six inches per your calculations, you'll remove three inches of shielding.

  You'll need to remove the copper shielding during this process. The easiest way to do so is by making a shallow incision with the hacksaw 

    vse way around the shielding and then attempting to strip it off from there.





▼ Korak 5. Cut the copper tubing to half of the antenna's overall length


Opomba: The copper tubing will comprise the other half of your antenna's receiver, so it should be the same length as the section that you just stripped.


  Again, if you're using a six-inch antenna, the copper tubing will be three inches.




▼ Korak 6. Cut the copper tubing to half of the antenna's overall length


Opomba: Attach the tube to the coaxial cable. Slide the copper tubing onto the coaxial cable's stripped end, then slide it down to the bottom.




▼ Korak 7. Solder the coaxial cable's shielding to the tubing


Opomba: You can do this by removing the PVC (black) shielding from around an inch of the coaxial cable directly below the unshielded part, peeling it back with a pair of pliers to form a lip, and then using your soldering pen to connect the lip to the copper tubing.




▼ Korak 8. Connect the coaxial cable to your audio receiver


Opomba: The remaining coaxial connector should plug into the receiver's coaxial antenna port, which makes the rest of the antenna placement fairly simple.





▼ Korak 9. Place the antenna


Opomba: Once the antenna is plugged in, angle it toward the nearest station and secure it in place if necessary.


  The fewer obstructions between your antenna and the nearest FM station, the stronger your signal will be.

  Your coaxial cable may be stiff enough to stand on its own without needing support, but you can use stables or any adhesive to prop up your antenna as needed.


<<NAZAJ


Metoda

2

    Using Speaker Wire


▼ Korak 1. Understand when to use this method


Opomba: If your connection to an FM station is mostly fine but requires some fine-tuning from time to time, you can use speaker wire as a quick range-extender to improve the quality of your connection.


  Speaker wire is not an ideal solution to long-range issues. If you're having trouble receiving a signal at all, you should try using coaxial cable namesto tega.




▼ Korak 2. Gather the necessary materials


Opomba: In order to craft a crude antenna from speaker wire, you'll need the following items:


  10 feet of speaker wire

  FM receiver with clamp-and-hold (or post) FM connections

  Wire strippers




▼ Korak 3. Split three feet of the speaker wire


Opomba: You should be left with three feet of spit wire and seven feet of intact wire.


  Using a knife or a pair of pliers, separate the top three feet of the speaker wire tubes from each other. 




▼ Korak 4. Split three feet of the speaker wire


  Arrange the speaker wire to form a "T" shape. You'll do this by bending each of the split wire ends at a 90-degree angle to the seven-foot section of wire.




▼ Korak 5. Strip the bottom two inches of insulation from the speaker wire


  Use the wire strippers to do so. This will expose two bare wires at the bottom of the "T" shape.




▼ Korak 6. Find your receiver's antenna connections


Opomba: These two connections will normally be marked "FM EXT" or "ANT EXT", but you'll almost always see "FM" somewhere near the connection; you should also see the word "Balanced" or "BAL" near the appropriate connections.


  FM receivers can have either clamp-and-hold connectors or post connectors. Clamp-and-hold connectors resemble literal clamps, while post connectors resemble knobs with exposed metal between them and the receiver itself.




▼ Korak 7. Connect the bottom of the "T" to the receiver


Opomba: Če obstaja samo ena FM povezava, lahko dve goli žici na dnu "T" zasukate skupaj in tako tvorite eno žico, ki se lahko poveže s sponko ali postom.


  Use each of the exposed wires at the bottom of the "T" shape to connect to each of the FM connections.




▼ Korak 8. Place the antenna


  Ideally, you'll place your antenna as high up and as close to the nearest station as possible. In some cases, this may mean threading your antenna along the top of a wall, or even running it outside.


Opomba: You may have to move the FM sprejemnik in order to make this possible.


<<NAZAJ

V Zaključek


STEP 1 (CHOOSING THE WIRE AND MARKING IN IT)
At first, you need to take a ten feet length of dual speaker wire. Then mark up to the 3 feet distance. Now split the dual speaker wire and create a T shape. This means the 3 feet portion will be perpendicular to the rest 7 feet.

Now you have to strip the 2 inches of the end of the insulation layer from the wire. Now you need to connect the wire with the speaker. Now find the external connection hole if the speaker may be labeled as “ext" or "ant." After it, you should wrap the post of the speaker, and then if the speaker is a clamp and hold then you should clamp and hold.

STEP 2 (CONNECTING TO THE HOLD OR CLAMP)
After twisting the wires together into the single wire, it is necessary to put the connection if the external antennae connection is a single post or clamp.

STEP 3 (EXTENDING THE ANTENNA FOR THEM TO ADJUST THE BEST SUITABLE POSITION)
Now I will guide you to extend the antennae. Now you have to put the receiver near a window. On the outside of the window, you have placed the wire in as much high a position as possible. Now you have to extend the wires in opposite directions of the window in two different directions.

STEP 4 (GETTING THE PERFECT ADJUSTMENT OF THE RECEIVER) 
After that, it is necessary to check the reception of the receiver. Switch the receiver on and check the signal level of the expected channels. You can relocate the wire to the opposite directional window check the available signal level if you are not satisfied with the first one. Then you should extend some end part of the wire if you still don't get the expected result.

STEP 5 (ADDING THE LENGTH FOR BETTER SIGNAL)
Adding the length to the antenna lead may also be required. For that, it is very much necessary to add the length to get more signal level. To do that cut the length of the speaker wire. Separate the two wires into two different wires.

Now strip the insulation layer from one end of any of each of the long wire. Strip one end of insulation from the antennae leads. Now twist the exposed parts of the two-different end of both the wires that means twist the exposed part of the wire to an extension to one antenna lead.

Repeat this step on the other leaders also. Now you can extend the total length of both longer leads again. Then you may also need to support a finishing nail if it is required.

With this method, you can be able to make an FM antenna out of the speaker wire. This is the method of making the FM antennae in easy steps. You should follow the steps that I have suggested as precisely as possible. Enjoy better and quicker signal. 


<<NAZAJ

How To Make A VHF FM Folded Dipole Antenna?


Many VHF FM hi-fi tuners have a 300 ohm input as well as the standard 75 ohm one. This input will normally have screw terminals although they will sometimes have a special 300 ohm connector. This input is ideal for use with a VHF FM folded dipole antenna which can be made up very simply. It requires only the use of a length of 300 ohm ribbon cable (not the computer multi-stranded ribbon cable) which can be bought from most electronic component stockists.


The first stage is to cut a length slightly longer than that required for the dipole element. At either end the centre plastic should be cut back and the remaining wire on either side stripped and joined together. This should be done making sure that the overall length of the element is correct.


The next stage is to cut the bottom wire in the centre. The wires should be stripped back so that a second length of ribbon can be attached. This can be made any suitable length, bearing in mind that it is likely to introduce a reasonable amount of loss if it is run within the house close to other objects. This enables the 300 ribbon to be used as feeder to be connected. This may be any suitable length.


This cheap and easy VHF FM dipole antenna is suitable for areas with high signal strengths, or it may be used as a temporary measure. The 300 ribbon cable is generally clear and can be hidden quite easily. Often this type of aerial can be fixed behind a curtain rail or a large piece of furniture.


Opomba: A dipole antenna is often an ideal solution for an antenna for receiving VHF FM broadcasts. The FM dipole antenna can be a cheap and effective solution, and they can be made in a variety of forms - only two ideas are given above, but it is possible to make a VHF FM dipole antenna in many more ways according to what may be available and what the requirements are.


<<NAZAJ


How to Make a Simple Antenna to Improve the Reception of an FM Radio Receiver


FM radio reception depends on distance between your receiver and the transmitting tower. A receiver with no antenna attached receives the strongest signals, but these may be prone to interference and drifting signals. A simple antenna not only stabilizes the signal from the strong stations, it allows your receiver to recognize stations with less powerful transmitters and at greater distances. A dipole antenna is simple in configuration and uses inexpensive materials in construction. Mounting such an antenna outdoors improves its effectiveness.


korak 1

Measure 28-3/4 inches from one end of your wire. Wrap several turns of electrical tape at that point. This represents a quarter-wavelength tuned to the middle of the FM radio band.


korak 2

Split the wire from the end to the tape. Spread the wires in opposite directions. These are the two poles of your dipole antenna. Use the wire strippers to remove 1/2-inch of insulation from the opposite end of your antenna and twist the exposed ends to prevent fraying.


korak 3

Attach each exposed end to one of two screw terminals on your receiver marked for the FM antenna. Loosen both screws, by hand or with a screwdriver, depending on your receiver. Wrap the exposed wires around the screw threads and tighten. It doesn't matter which wire is connected to each terminal.


Extend and adjust the poles of your antenna to obtain the best results. The dipole antenna is directional, so changing its location and orientation will affect reception. Individual stations will be affected differently. Use hardware or additional tape to improvise support for your antenna.


<<NAZAJ


How to Get More Channels With A Homemade Antenna?


Cable and satellite television provides you with an almost endless variety of shows, but as service providers raise prices and cut channels, you may decide to return to basic TV. You don't have to settle for just one or two channels with basic television. Making your own homemade TV antenna allows you to pick up on channels previously unavailable to you. The antenna also boosts your television's signal, so you see and hear your favorite shows more clearly.


korak 1

Bend each 17-inch copper wire in half to form eight pairs of ears. Spread the ear tips three inches apart.


korak 2

Put a piece of heat-shrink tubing over the end of each ear tip. Shrink the tubing with a heat gun.


korak 3

Saw the 38-inch pine board into two pieces, a 6-inch piece and a 32-inch piece. Place the 32-inch pine board flat on the floor or table. Arrange four pairs of ears on each side of the board, with the tips of the ears facing outward. Thread the two 34-inch copper phasing bars through the ears as if lacing a shoe.


korak 4

Put one washer over the center of each pair of ears. Use a drill to secure the washers with screws.


korak 5

Wrap a small piece of electrical tape over the intersecting phase bars. The electrical tape prevents contact between the bars.


korak 6

Drill two washer and screws next to each other in the center of the board. Wrap the ends of the impedance-matching transformer (IMT) around the washers.


korak 7

Use two coarse-threaded screws to attach the 32-inch pine board to the 6-inch pine board, forming a base for the antenna.


korak 8

Connect a coaxial cable to the end of the IMT. Connect the other end of the cable to your television's converter box. If you have a digital-ready television, connect the coaxial cable directly to the TV instead.


Opomba: Adjust the antenna until you pick up channels. Make further adjustments to get the best-quality picture.


<<NAZAJ

How to Build a Homemade Radio That Really Works


SAFETY FIRST: Ask an adult to help with tools you haven't used before.


Radios might seem super high-tech. But with about $15 and one afternoon, you can make one at home.



WHAT YOU’LL NEED


● Magnet wire: Electronics supply stores often sell a set, for about $10, that comes with 40 feet of 22-gauge, 75 feet of 26-gauge and 200 feet of 30-gauge magnet wire. 

● 1 set of alligator leads with clips at each end.

● 1 diode: Look for IN34A diodes, also called “germanium diodes,” at an electronics supply store or online.

● 1 glue stick or anything similar in size — about 1 inch by 1 inch by 6 inches. It can be a piece of wood. It doesn’t have to be perfectly round, but using something round is easier for winding.

● Electrical tape

● Wire stripping pliers

● Telephone handset with cord. If you don’t have an old phone that you don’t use anymore, you might be able to find one at thrift stores or garage sales.

● One board for mounting your radio — 2 feet by 2 feet will work. You can make the radio without this, but having a workspace and a place to mount the radio makes it easier to carry around while you’re looking for a place to hook the ground wire.


 WHAT YOU’LL DO


Step 1:

Wind 26-gauge wire (the green magnet wire) around the glue stick until it covers nearly the entire cylinder. Keep the wire tight. Leave about six inches of wire on each end. Once you’re finished winding it, tape around both ends of the cylinder to make sure the wire holds. Then, mount the coil to the board with electrical tape.


Step 2:

Strip the ends of the wire you’ve left from each end of the coil. Use wire stripping pliers or sandpaper. The wire is very thin. Removing the enamel and exposing about one inch of the wire should be easy.

Step 3:

Attach the wire from the right side of the coil to one end of your diode. Tape the connection.


Step 4:

Cut the end of the phone cord and strip about two inches of it. It should expose two wires. Strip those wires. Take your time; this wire is thin. (Try this tip: Before hooking up the tiny telephone cord wires, get some thicker insulated magnet wire and tape about two inches to each wire. This will make the rest of the job easier.) Attach one end of the wire to the exposed end of the diode. Tape that connection.


If your phone cord has four wires instead of two, you have to figure out which two will work. Take a 9-volt battery and place one cord against the positive (+) pole of the battery and another cord on the negative (-). When you find a combination that makes a clicking sound in the headset, you have found the two wires to use.


Step 5:

Connect the second telephone wire to the green wire coming from the left side of the coil. Before taping this connection, clip one of the alligator leads to it. Tape those three wires together — the alligator lead (that’s your ground wire), the telephone wire and the wire coming from the left side of the coil.

Step 6:

Make your antenna by clipping one of the remaining alligator lead wires to one end of the 22-gauge magnet wire. Leave this wire on its roll.


Step 7:

Scrape a thin strip of enamel from the wire wrapped around the glue stick. You can do this with any sharp object or a piece of sandpaper.


<<NAZAJ



>More

 SEE IF IT WORKS


Attach your telephone cord to its handset.

 Find a good ground for the alligator wire that’s connected to the left side of your coil. A pipe going into the ground is perfect.

 Unroll the antenna wire and hang it over a tree branch with help from an adult.

 Touch the alligator clip that leads to your antenna wire to the top of the coil. You should be able to hear an AM radio signal.


 ODPRAVLJANJE TEŽAV


 If you can’t get any signal, it’s probably your ground wire. With permission from an adult, unscrew one bolt that holds the faceplate to a light switch or outlet. Unscrew it just enough to hook your alligator clip. Don’t remove the plate.

 If you get a weak signal, it’s your antenna. If your parents have an old television antenna, hook your radio antenna wire to one of the connections on the TV antenna wire instead of running wire up a tree.


Zadnje besede


FM radio antenna DIY may be difficult, but please keep in mind, as long as you prepare all the production materials we mentioned, and follow the method provided by FMUSER to DIY FM antenna, you are a successful amateur FM radio fan!


There is nothing more exciting than making an FM radio antenna by yourself. If you encounter any difficulties in making an FM antenna, please consult FMUSER! Have a nice day!


<<NAZAJ



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