FM Radio Station Antenna DIPOLE For FM Transmitter DIY Design For Radio Station Broadcast homemade
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- Опубліковано 3 вер 2023
- FM dipole antenna. This is great for a home build and fm dipole antenna diy is fun. FM Dipole Radio Station Antenna Homemade For FM Transmitter . This antenna is an FM dipole which is a half wave antenna. How to build FM transmitter antenna from scratch. You can make it yourself from basic parts that you can find at a hardware store. DIY antenna build with instructions on how to put it together. Easy FM antenna construction and a great antenna for radio broadcasting. This antenna can handle a lot of power but it has not been professionally rated so don't use more than 30 watts with this antenna. Even though this antenna is designed for FM broadcast if you want to know how to make a dipole antenna for amateur radio then by simply adjusting the measurements to match the amateur band frequencies this dipole can work for that too.Its really just the fm dipole antenna length that matters to change it. This is an outdoor fm dipole antenna and really for indoor use. If you would like to build fm dipole antenna then this video will show you every step. Making an fm dipole antenna is actually not as hard as it might seem. At first glance it might seem daunting but this is a simple fm dipole that is basic but solid and puts out a great signal.
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Downloadable instruction document:
As soon as it is ready a link will be here to purchase the complete build instruction doc.
To build a radio station you will need a good antenna. Some antennas work as stand-alone antennas while others work in an antenna array. The FM half wave dipole can work as a stand-alone antenna as well as be built into a multi-antenna array. The FM dipole is the industry standard for radio station antenna array set ups for FM transmitters. Antenna stacks can be as small as two matched pair antennas and as big as the structure you have to hold the antennas. The FM dipole antennas need to be the same design and be tuned before they can be added to am antenna array. Even though FM dipole antennas are theoretically the same the smallest differences can affect the radio signal radiation pattern. That is why having the FM dipoles being the same reduces the chances of multipath interference. diy fm dipole antenna for a fun hobby.
30 year plus veteran broadcast engineer here, let me see your breakdown of these antennas is quite good. This video actually serves two purposes one to explain in layman's terms what's going to happen. And also the technicians that get too deep into the engineering., I have seen some antenna Rays with as many as 16 circular polarized dipoles stock at one wavelength apart, taking up most of a 400 ft tower. All being fed using Ridgid cable. I've also made them with rg59 coat hangers and PVC pipe. The only limiting factor is rg59 can only withstand about 100 watts. In that case we would use rg11, which can handle approximately 500 to 1000 watts. Usually we design each dipole to handle 50% of the total power will be feeding into the system even if it's a four-way system, will still design them to take usually around 400 watts each. I've also seen systems, where you have four dipoles on the tower. The cables on them are all long enough to reach the ground. And then all of the same length. Each dipole is connected to the output of a separate power amplifier, the inputs to the power amplifier are generated by a divider Network after the exciter. Essentially the phase splitting and alignment, is done at the input of the amplifiers has the amplifiers do not add significant phase shift. This can't be said for all amplifiers. But in most cases the modern solid state ones can do this. It's actually possible to obtain 100,000 watts effective radiator power using only 10kw of amplifier. Each dipole, is built into 50 ohm antenna. All the cables are exactly the same length of 50 ohm coax. And yes this uses hundreds of feet of coax to do this. You must have the same length at the Top Antenna as at the bottom antenna then all the cables are ran back to the transmitter. Where you would have the output of 10 seperate power amplifiers. Each power amplifier feeds one antenna.. the input of each amplifier, comes from a power divider network. Essentially the same thing you're building for the antennas with coax, you build a smaller version that stays down with the amplifier. The beauty of the system is that it's easy to install you just roll up the excess coax and cable tie it to the tower. Once you have all the antennas spaced on the tower and everything is ready to go. With the multiplied gain of 10 dipole antennas, we're being effective radiated power of 100,000 watts. The true beauty in the system. Is that should you decide you want a small amount of beam tilt, either up or down it's going to be accomplished by just changing the length of the coax feeding the power amplifier to that antenna. And up or down beam till is easily added
Excellent video, but! You forget ballun. It is very important to have ballun between cable and dipole!
Make a bulan coils using the coaxial cable, just roll a few turns Wil be ok, it's to unbalance to balance the coaxial and the dipole 👽👍📡 📻
Thank you! I will be using this antenna to simply receive FM signals. How would I adjust the aluminum rods to tune it to a specific frequency? The video you recommend at the end titled, ‘FM Transmitter How To Build Circuit DIY Homemade’ does not explain how to tune (adjust the aluminum rods) on this adjustable Dipole antenna for maximum receiving of FM signals. Maybe I missed something. Thank you again. I like the way you explain the build process. Very clear and thorough!
Hi can someone please email me this blueprints of this video please
Can I use this adjustable dipole antenna for simply receiving FM signals? All I want to do is receive a strong and clear FM signal on my FM receiver. In other words, is this adjustable Dipole antenna project ‘overkill’ for simply receiving FM signals or would I be better off simply building a fixed length basic dipole antenna? Thank you kindly for this DIY adjustable Dipole antenna project. Looks fantastic!
I appreciate the graphical detail and wish other could use it along with real pics of what is going on. This is what information sharing is all about. Making it understandable.
It is amazing how much work went into making this video. Amazing :D
and not to forget: the video is super!
i might have another question: why is the wood dowl only 5 cm long. For strenght it might be better of with 10 cm?
This is an excellent and very detailed video. I appreciate the time and effort you put into it.
Un grand Mercie .
I am really enjoying your videos.
hello, have the instructions already been out? is there a need the bolts are 10mm x 50 mm and 6mm in diameter? which material are they made of?
plz make on circular/cross polarized antenna also
Seen mixed opinions regarding the spacing between poles and performance, anywhere from 5mm to 30mm.
0:20
dear sir
Km Range?