Top 8 Transmitter DIY Kit UK – Car Audio FM Transmitters

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1. Aeun

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Signal Source Amplitude Modulation Radio Medium Wave Transmitter 9V 530‑1600KHz for Radio, Radio DIY Transmitter Kit

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Aeun #ad - No external antenna required: radio experimental medium wave transmitter without external antenna, rely entirely on the magnetic bar leakage of the magnetic field radio transmission to the radio. Good signal to noise ratio: 530‑1600khz radio medium wave transmitter has been experimented in the rated transmitting distance sound quality close to FM broadcasting, signal to noise ratio is good.

Simple circuit: radio medium wave transmitter is composed of common transistors and capacitive sense components, and uses sound transformer modulation, and can work normally without welding error. Simple commissioning: resistor parameters and matching transistor parameters have been matched, as long as all the components are properly welded, you can work well, only need to adjust the band coverage.

Easy to use: multi interface external power supply, battery, test terminal, sound input, easy to use and expand the function, can use battery power supply, can also use external power supply.
BrandAeun #ad
ManufacturerAeun #ad
Part NumberAeunp9gzr3wneo
ModelAeunp9gzr3wneo

2. FirstE

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FM Modulator Car MP3 Player Handsfree Car Kit Support 5V 3.1A Dual USB Ports/Voltage Detection, FirstE FM Transmitter Bluetooth 4.2 Car Radio Audio Adapter, Play USB Disk/SD Card64G Black

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FirstE #ad - Easy to use: plug firste bluetooth fm transmitter into the car cigarette lighter; tune the car radio into an unused FM frequencyrange from 87. 5 to 108 mhz, then match the bluetooth FM Transmitter to the same frequency; Pair this car kit device with your phone/ tablet via Bluetooth. Dual usb ports: firste wireless audio cell phone car kit accessories support charging two devices at a time, which outputs 3.

1a together. Hands-free call: firste in car fm transmitter adapter comes with bulit-in Microphone and Noise Suppression CVC technology, which offers crystal clear phone calls while letting you drive more safely; Answering/ redialing/ hanging off a call/ rejecting by pressing a button. This portable electronic FM transmitter also can stream music from your phones via Bluetooth connection. Wide compatibilitythis bluetooth car fm transmitter is compatible with most Bluetooth enabled devices, such as Smart Phone, Tablet and other Android smart phones; Stream music and make phone calls directly from your cell mobile devices to car stereo system speaker via FM radio signal.

Then you can listen your favorite songs or make phone calls. Streaming music: firste smart mp3 audio music player allows to listen your favorite songs by inserting a USB flash driver/ TF Card Reader which contains MP3 files into the RIGHT USB port. The bulit-in smart chip charging IC will divide the voltage based on the need of device automatically. If there has an incoming call, this unit will automatically switch to telephone when you are in music playing mode.
BrandFirstE #ad
ManufacturerFirstE #ad
Height1.97
Length2.95
Weight0.02
Width1.46
Part Numberhk203
Modelhk203
Warranty1 Year Warranty Against Manufacturer Defects

3. Bewinner

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Radio Short Wave Transmitter Kit, 21MHZ AM Radio Transmitter Board Low Power Sound Amplification SW Radio Amplifier Kit for DIY Campus Broadcast

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Bewinner #ad - High frequency oscillation: 21mhz high frequency oscillation, crystal Y1 in the circuit is a parallel resonance, equivalent to the inductor. Sound modulation: transformer b1 secondary inductance sound voltage superimposed on the DC power, to get the modulation voltage with the change of the sound source.

Structure: mainly consists of power input, 21MHZ high frequency oscillation, sound amplification, Class C high frequency amplification, sound modulation, 21MHZ low pass filter. Application: this is a short wave transmitter, mainly used in short wave radio experiments and tests, understand the principle of AM modulation. Power input: professional am radio transmitter board, C1 to C6 for the filter capacitors, reduce the power supply interference ripples.
BrandBewinner #ad
ManufacturerBewinner #ad
Part NumberBewinnervkamhn94f3
ModelBewinnervkamhn94f3

4. ASHATA

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Short Wave Transmitter Kit, Short Wave Low Power Sound Amplification SW Radio Amplifier Kit for DIY Campus Broadcast, AM Radio Transmitter Board

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ASHATA #ad - Sound modulation: transformer b1 secondary inductance sound voltage superimposed on the DC power, to get the modulation voltage with the change of the sound source.

Power input: professional am radio transmitter board, C1 to C6 for the filter capacitors, reduce the power supply interference ripples. Application: this is a short wave transmitter, mainly used in short wave radio experiments and tests, understand the principle of AM modulation. Structure: mainly consists of power input, sound modulation, Class C high frequency amplification, 21MHZ high frequency oscillation, sound amplification, 21MHZ low pass filter. High frequency oscillation: 21mhz high frequency oscillation, crystal Y1 in the circuit is a parallel resonance, equivalent to the inductor.
BrandASHATA #ad
ManufacturerASHATA #ad
Part NumberASHATAo15fwp6nc9
ModelASHATAo15fwp6nc9

5. Dpofirs

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Radio Medium Wave Transmitter, Airfly Transmitter Airplane, Transmitter Adjustable 530 to 1600KHZ DIY Transmitter Kit for School Experiment

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Dpofirs #ad - Unmatched oscillation source: q1's common base modulation transformer oscillation circuit generates high-frequency signals ranging from 530-1600KHZ. Use sw3 to adjust for the perfect sound. R11, r12 serve as bias resistors, allowing broad conduction with B2 secondary output high-frequency voltage.

Powerful high-frequency amplification: further amplify high-frequency signals with Q2 and Q1, using C20 coupling capacitance and C21 high-frequency bypass capacitance. The integrated antenna enhances signal matching, c26, L3, and C27 form a low pass network, making it ideal for Radio Medium Wave AM Transmitter experimentation and DIY projects. Premium filter network: l2, effectively removing high harmonics and producing sinusoidal waveforms. Enhanced sound amplification: experience crystal-clear sound with r2, and r5, and ic1 sound amplifier chip, R3, c11, C8 RC filter circuit, ensuring optimal volume control with SW1 volume potentiometer.

Superb high-frequency modulation: achieve optimum sound voltage with C22, C23 sound capacitors and fine-tune sound quality with SW2 and R14 bias resistor. R15 negative feedback resistor ensures top-notch audio performance. Adjust the cv for desired frequency, while R10, C19 provide positive feedback. Additionally, c9, c12 capacitors enhance sound quality while R1, D1 power indicators provide efficient power management. C18 and c16 act as bypass capacitors for high frequency and power supply filtering respectively.
BrandDpofirs #ad
ManufacturerDpofirs #ad
Height5.51
Length3.54
Width0.79
Part NumberDpofirs2c9ne13vom
ModelDpofirs2c9ne13vom

6. Kadimendium

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3 Channel AM Transmitter Board 1MHZ 3MHZ 5MHZ Amplitude Modulation Kit DIY AM Transmitter Micro Power Transmission

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Kadimendium #ad - Battery-powered convenience: powered by a battery not included, this AM Transmitter offers simplicity and ease of use anytime, anywhere. Versatile applications: ideal for testing and experimentation with radio receiver players, this AM Transmitter finds its use in various fields.

Seamless transmission: 3 channel AM Transmitter with Antenna and Audio Cable for interference-free performance. Compact and efficient: with its compact size and excellent PCB design, this AM Transmitter ensures effortless installation and efficient operations. Reliable distance: enjoy stable transmission up to 1 meter with this micro-powered Amplitude Modulation Transmitter, ensuring safety and reliability.
BrandKadimendium #ad
ManufacturerKadimendium #ad
Height0
Length0
Width0
Part NumberKadimendium8my2r5p6et
ModelKadimendium8my2r5p6et

7. Generic

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Bluetooth Car Charger, Bluetooth FM Transmitter in-car Wireless Radio Adapter for Music Player, Hands-Free Calling Car Phone Kit for iPhone 14 13 12 11 Pro Max Samsung Galaxy S23 S22 S21 S20 FE Ultra

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Generic #ad - Easy to use; insert the bluetooth transmitter into the car cigarette lighter, adjust the car radio to a blank FM frequency 87. 5-108. 0 mhz, then adjust the fm transmitter to the same frequency, and then connect your phone to the transmitter via Bluetooth to enjoy lossless music.

Upgraded 3. 1 car transmitter with power Off Button you will enjoy a faster data transmission rate, more stable connection, anti-interference performance and more. Lawa pd3. 0 type-c & qc3. 0 usb ports 38w fast charging type-c port and quick charge 3. 0 port enable you to charge your devices in 2X faster than standard chargers. 3 playing modes with broad compatibility : play music from bluetooth connection, TF card, USB disk; Support A2DP and MP3/WMA/FLAC/AAC/WAV format music.

Noise-cancelling: built-in noise-cancelling microphone provides clear and high quality sound when making a phone call The FM bluetooth transmitter will automatically connect to your phone when it is turned on for the second time. The 5v/1a port is designed for playing music using USB.
BrandGeneric #ad
ManufacturerLAWA #ad
Height0.91
Length2.56
Width3.6 cm (1.42 Inches)
Part NumberHF-FMCD17
ModelHF-FMCD17

8. Vikye

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Amplitude Modulation DIY Kit, Simple Circuit, Radio Medium Wave Transmitter 530 ‑ 1600KHz, No External Antenna Required, Good Signal to Noise Ratio

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Vikye #ad - Good signal to noise ratio: 530‑1600khz radio medium wave transmitter has been experimented in the rated transmitting distance sound quality close to FM broadcasting, signal to noise ratio is good. Simple commissioning: resistor parameters and matching transistor parameters have been matched, as long as all the components are properly welded, you can work well, only need to adjust the band coverage.

Simple circuit: radio medium wave transmitter is composed of common transistors and capacitive sense components, and uses sound transformer modulation, and can work normally without welding error.

Easy to use: multi interface external power supply, easy to use and expand the function, battery, sound input, test terminal, can use battery power supply, can also use external power supply. No external antenna required: radio experimental medium wave transmitter without external antenna, rely entirely on the magnetic bar leakage of the magnetic field radio transmission to the radio.
BrandVikye #ad
ManufacturerVikye #ad
Part NumberVikyew40r6cnpgz
ModelVikyew40r6cnpgz