10km FM Transmitter Circuit Diagram (🔴Live Proof) fm transmitter circuit
Summary
TLDRIn this video from the DIY Electronics channel, you'll learn how to build a small, sensitive FM transmitter circuit capable of transmitting over long distances. The tutorial covers essential tips, like how to properly wind the copper wire coil and use a PCB for better performance. You'll also find instructions for ordering a free PCB from JLCPCB. The host demonstrates the transmitter in action, testing its signal on 92.7 MHz and showing how it performs at different distances, including on the roof. Don't forget to check the Gerber file and JLCPCB link in the video description.
Takeaways
- 🛠️ This video demonstrates how to make a small-sized, sensitive FM transmitter circuit that works over long distances.
- 🔄 The circuit diagram and tips for building the FM transmitter are provided throughout the video, so viewers are encouraged to watch until the end.
- 📋 A PCB is essential for the proper functioning of the transmitter, as without it, the circuit may not work effectively and may create noise.
- 🔧 The video explains how to wind the copper wire into 8 rounds using a screwdriver to create the coil, emphasizing the importance of keeping the wire terminals equal.
- 📡 The coil is a crucial component, and viewers are advised to troubleshoot their FM transmitter by focusing on this part if issues arise.
- 🖥️ The video shows how to order a PCB from JLCPCB by uploading the Gerber file, selecting options, and using a coupon code for first-time customers.
- 📶 The creator tests the FM transmitter at a frequency of 92.7 MHz, demonstrating clear signal reception even from a long distance, including from a rooftop.
- 🎶 Though the music quality on the video wasn't perfect due to microphone placement, the creator confirms that the FM signal output is clear.
- 📦 Viewers are encouraged to order their PCBs through the link in the description and receive a discount if they are new customers.
- 👍 The video concludes by urging viewers to like, subscribe, and visit the JLCPCB website for the PCB order and Gerber file.
Q & A
What is the main purpose of this video?
-The main purpose of the video is to teach viewers how to make an FM transmitter circuit and provide tips to enhance its performance.
Why is it important to use a PCB when making the FM transmitter circuit?
-Using a PCB is important because without it, the circuit might not work properly and may produce noise.
How is the coil for the FM transmitter made, according to the video?
-The coil is made by winding 8 rounds of copper wire around a screwdriver, and the ends of the wire are adjusted to be equal using tweezers.
What advice does the creator give if the FM transmitter doesn't work?
-The creator advises checking the coil carefully, as it is a critical component that could cause the transmitter to malfunction.
How can viewers order a free PCB, as mentioned in the video?
-Viewers can order a free PCB from the JLCPCB website by uploading the Gerber file, selecting the PCB quantity and colors, entering their address, and using a coupon code if they are new customers.
How is the FM transmitter signal tested in the video?
-The signal is tested by connecting the transmitter to a power supply, attaching an alligator clip to the antenna for a stronger signal, and tuning a mobile phone to 92.7 MHz to receive the signal.
What issue does the creator encounter while testing the FM signal, and what is the possible reason?
-The creator notices the music isn't clear during recording and believes the issue is due to keeping the microphone too close to the mobile device.
What steps does the creator take to demonstrate the range of the FM transmitter?
-The creator plays music on a mobile device and tests the signal strength by moving to different locations, including the terrace, where the signal is still received clearly.
What kind of music is used during the testing of the FM transmitter signal?
-The creator uses NCS (No Copyright Sounds) music while testing the FM transmitter signal.
What are the key takeaways from the video?
-Key takeaways include how to build the FM transmitter circuit, tips on improving signal strength and avoiding noise, the importance of using a PCB, and instructions on how to order a PCB for free from JLCPCB.
Outlines
🔧 Introduction and Building the FM Transmitter
In this introduction, the host welcomes viewers to the YouTube channel 'DIY Electronic' and introduces the topic of building a small but sensitive FM transmitter circuit. The circuit is demonstrated later in the video, along with a diagram and several tips for assembly. The host emphasizes the importance of using a PCB for optimal performance and shares advice on making the coil using a screwdriver and copper wire. Details on ordering a PCB from JLCPCB are also discussed, with a coupon code available for new customers. The host proceeds to explain how to equalize the wire terminals with tweezers and stresses that issues with the FM transmitter could be due to coil misalignment. Viewers are encouraged to stay tuned for the full circuit demonstration.
📡 Testing the FM Transmitter and Signal Reception
The host begins testing the FM transmitter by powering up the circuit and connecting an alligator clip to the antenna for a better signal. They set the frequency to 92.7 MHz and check the signal using a mobile phone. After adjusting the camera, they confirm the transmitter is working by playing a beeping sound due to a loop in the circuit. Moving on, the host plays non-copyrighted music and further tests the signal strength by moving to the terrace. Despite some audio recording issues, the host notes that the signal reception remains strong, and the music quality was clear off-camera. The video concludes with a reminder to like, subscribe, and visit the JLCPCB website for more details on ordering PCBs.
Mindmap
Keywords
💡FM Transmitter
💡Circuit
💡PCB (Printed Circuit Board)
💡Copper Coil
💡Gerber File
💡JLCPCB
💡Frequency
💡Antenna
💡Power Supply
💡Signal Clarity
Highlights
Introduction to creating an FM transmitter circuit.
The FM transmitter circuit is very small and sensitive, with long-distance range capabilities.
The circuit's performance is demonstrated at the end of the video, along with a circuit diagram.
Tips for building the FM transmitter circuit are shared to help with construction.
Using a PCB is essential for proper function and to reduce noise.
Instructions for making the coil with 8 turns of copper wire using a screwdriver are shown.
It is important to equalize the terminal ends of the wire for the coil.
If the FM transmitter doesn’t work, the coil is the primary component to troubleshoot.
Steps to order a PCB for free from JLCPCB are provided, with a link and coupon code for new customers.
The FM transmitter is tested at 92.7 MHz using an alligator clip as an antenna.
Beep sound demonstrates a loop in the circuit, followed by playing NCS no-copyright music to test the transmission.
FM signal works clearly even at a distance, with tests conducted on the terrace.
Explanation for unclear sound during recording due to microphone placement.
The actual output of the FM signal is very clear despite video recording issues.
Encouragement to build the circuit and a reminder to like, subscribe, and visit the JLCPCB website for PCB orders.
Transcripts
Hello friends Welcome to our youtube channel Diy Electronic
In today's video we will learn to make FM transmitter circuit
This circuit is very small in size
And this circuit is very sensitive plus works up to very long-distance
I have shown this Circuit by checking at the end of the video.
and the circuit diagram is also in this video
I have shared some tips in the video
Which will help you a lot in making FM transmitter
so make sure to watch this video till the end
let's start this video
for making FM transmitter circuit I am using PCB
without PCB it will not work that much properly
and also create some little bit Noise
Well how can you order this PCB for free, I have told in the video
so make sure to watch this video till the end
for making a Coil here I am using this type of screwdriver
use a similar screwdriver
The value of copper wire is shown on the screen
8 rounds of copper wire in the screwdriver
1
2
3
4
5
6
7
and..
8
now
bring it closer
will cut now
wire
Ok... Done!
Now here's an important thing
We have to keep the end terminal of the wire equal
With the help of tweezers
I have equalized the terminal of the wire
These were the important things that I wanted to tell you
If your FM transmitter does not work
then you should pay attention to this coil only
ordering a PCB from jlcpcb is a very easy
Gerber file is in the description
upload the Garba file by visiting jlcpcb website
Select the pcb quantity, Select the colors, enter the address, pay the amount, then place the order.
And if you are new customer then you can get the coupon code by registering through my link.
you can register through my link, is in description
Make sure to visiting their website after watching this video
Friends I have given the power supply to the circuit
I have connected an alligator clip in the antenna for good signal
And here is my mobile so that I will receive the signal
At the frequency of 92.7 MHz
Now I put the camera on the tripod
and check the circuit and show you
the circuit is on now i'm going to play
Now you will hear the beep sound
You are hearing this sound because of loop created in the circuit.
Now I will play NCS no copyright music
I'm taking the camera back
Now I will go there and play music in mobile
And the fm signal which is coming very good in this distance
I went to the terrace, even there the signal is good
I will show you that footage later in the video
first I will go and play the music
The music will keep on playing and I'll go on the roof now
And now I'm on the roof
I think You can't see anything on the mobile screen
but I'm going to play music
As you can see, the signal of the fm is being received even on the tarace very easily.
Friends let me tell you the sound was coming very clear
But don't know why while recording this video music is not so clear
I think I am keeping the mic so Closer to the mobile, that's y the sound quality is bad
Let me tell you the output was coming very clear, you can make this circuit
I hope you like this video
If you enjoy the video then like and subscribe to the channel
And yes don't forget to visit JLCPCB website
Link below is the description of the gerber file and also of the website.
thank you so much for watching this video
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