fm transmitter DIY 5km FM Transmitter Circuit Diagram

[@MohammadOaes-f3m]

I just can't count how many radio-related receiver/transmitter videos this guy has made. Shine you amazing bastard

[@666Bern666]

Always find these channels amusing. As an experienced engineer this is terrible. Unlike some others out there this will actually work, range a few hundred feet max maybe not 5km! Clearly no idea what they are doing though. At these frequencies it should be a double sided board with one side a ground plane and you keep the component lead lengths to a minimum. The output device in the diagram in the links looks reasonable, the one in the video does not!

[@czekuch]

The transmitter range of 5 km is unrealistic, it's nonsense.

[@alexakhmetov4616]

​​@@czekuchit's realistic if you have a transmitter that's capable of delivering at least 7-8 watts of power into the antenna(such transmitters are pretty popular today) and a good tuned antenna placed as high as possible

[@czekuch]

What is the output transistor? Can it generate 5-8 watts of power ??? The antenna is not needed if there is nothing to send. The project allows for communication up to 150 m. This is my opinion, yours may be different.@@alexakhmetov4616

[@Bartok_J]

Agree! Very poor technique: components waving above the board? Scarcely OK for audio, let alone VHF. :-(

[@ocsrc]

I had a lot back in the 80s that I used a commercial matched antenna and boosted the power to 12 volts and got a mile range

[@dragan3290]

I like the frequency counter!

[@humorhut1]

A.O.A! Plz snd the circuit diagram of the FM transmitter

[@mondude9754]

Anyone wanting to build this HE MISSED A CRUCIAL STEP IN THE ASSEMBLY PROCESS. You see he never included a resistor to give a + bias to the base leg to first stage oscillator transistor. It will not do anything without that resistor in which is what happened when I built it. I finally noticed at 3:39 you can see the extra resistor he forgot to add in the first place. It looks like a 2.2kohm and is on the immediate left side of the variable capacitor. Mine still only transmits a few feet, though I didn’t use the same transistors he used and mine are far from being rated for the frequencies

[@inventorkr1]

Good note: Yes, everything you said is true

[@josue19731000]

@@inventorkr1 ele troca a primeira bobina também , por favor amigo envie o esquema correto ou disponibilize um link para compra obrigado , pode reparar também que ao 3:57 a placa tem um novo elemento soldado bem próximo ao SC2078 repare bem!!

[@eduardoaflores1767]

Gracias, saludos desde Lima-Perú

[@skunkybillmarleey5652]

if you put a 7 element antenna on it and put it outside, it's even bigger. nice video thanks👍🤩✌

[@inventorkr1]

Yes, using a longer antenna increases the range of the FM transmitter

[@nicoschadjidemetriou4373]

Thanks my friend. If your transistor gives power up to 5 km it must need heat sink for sure?

[@inventorkr1]

Yes, of course

[@artursmyrek7987]

Thanks for video, its great🙂

[@inventorkr1]

Your interaction with the video encourages me to provide the best. Thank you. Stay tuned for new unique electronic projects

[@HendroSusenoHadiSudibyo]

i'd like to know abou that frequency counter

[@mikepaul2831]

This transmitter works properly within perimeter of the table it is situated on. One stage amplifier on 9018 and 5 km it is a very nice tale.

[@jeffersonch.r.1275]

Hello, good video of how many watts is the transmitter?

[@electroniquepassion]

Good ❤️❤️❤️👍👋😉

[@inventorkr1]

Merci mon ami de toujours me suivre

[@aadedeelectric]

Tx Fm..Great job bro

[@inventorkr1]

Thanks my friend, your comment makes me happy

[@beneditojorgesimoes4916]

The circuit is very good, you just need to include the PCB layout and the list of components, thank you.

[@PINKWOMAN88]

very nice friend 👍👍

[@inventorkr1]

Thank you, my friend. I wish you success. Your comment is the most wonderful and encourages me to submit more projects

[@johnman1286]

I don't see anything that would provide the 75us pre-emphasis for the audio. The output transistor which looks like it came from a junk CB radio, has the collector (center lead) grounded instead of the emitter. It would not have any gain.

[@AfonsoSebastiaoBaiao-jr3gi]

Quanto é que o circuito recebe para funcionar? how much does the circuit receive to work

[@SM_Mahfuz]

How to buy this product?

[@พลทาพงษ์]

❤ขอบคุณ!😂

[@NihalShaikh203]

But is there any replacement for transistor c2780 please tell because I need its replacement urgently

[@OJATVGHANA]

add schematics diagram to video so we can give a try to confirm your good work

[@balkiasaktapbergenova8052]

Отличный контент!!! У меня вопрос, радиус действий какое?

[@Betoviskb]

parabéns,❤

[@inventorkr1]

Obrigado, seu comentário é muito importante para mim

[@antonschabenberger1659]

Fuktioniert nicht

[@fil9625]

i want to use this circuit to turn on a led in the receiver by adding a switch to this circuit. how can i do it.

[@Drxxx]

Your channel is great❤ super video

[@inventorkr1]

Thank you, my friend. I wish you success. Your comment is the most wonderful and encourages me to submit more projects

[@ZAFERYILDIZ52]

❤❤

[@inventorkr1]

Thank you my friend, I wish you success

[@breejr7980]

can this circuit work in airband frequency 108-136 MHz?

[@lucianofelix9989]

Cobra quanto para fazer um transmissor de 5 km

[@masjackelektronik7156]

Good

[@inventorkr1]

Thanks my friend, your comment makes me happy

[@sartajansari1162]

Can you make pwm circuit with frequency and duty cycle controlled. Frequency 0-60 hz and duty cycle control with 3525 ic or tl494 . Plssssss

[@inventorkr1]

Thanks for your comment, I will try to post a video on this circuit as soon as possible.

[@LORO_97]

qual é a marca desse seu ferro de solda?

[@inventorkr1]

Miniware TS80

[@LORO_97]

@@inventorkr1 obrigado 🤙

[@mickgatz214]

Is this FM Stereo? How you make it more powerful? Great Work!!!! 👍

[@inventorkr1]

Yes, it is a stereo FM transmitter circuit and it is very powerful with the use of transistors used in the circuit diagram

[@koteotake]

No. For stereo you need stereo coder.

[@emivesprini3345]

que pasa si uso capacitores ceramicos normales?? y no de tantalo

[@inventorkr1]

Puedes usarlo sin problema.

[@AungThuKyaw-f9s]

​@@inventorkr1Which transistor should I use to replace the BFP494 or BC 550?

[@arendelle_ok]

How much watt power transmitt ??

[@MarikaAndriamanantena]

Nice video but can I replace the c2078 with C2166 or c2312? Cannot find the c2078 at all

[@raulraul3417]

2SC2078

[@williamroger5937]

Imagina a cena os policiais só na dancinha dessa música 😅kkk

[@inventorkr1]

Caro amigo, este é um círculo educacional. O alcance da transmissão é definido apenas na sala. Sempre verifique suas leis locais antes de usar uma frequência para transmitir seu sinal RF FM Todos os vídeos são educacionais

[@luismejia-ey4yh]

okey y el esquematico de produccion? para cuando?

[@inventorkr1]

El diagrama de circuito de todos los circuitos se encuentra en la parte inferior del video, en el cuadro de descripción, y puede ver el blog. También encontrará esquemas de muchos circuitos.

[@josue19731000]

@@inventorkr1 o circuito do blog é outro tipo de esquema em placa de fm

[@timob24311111]

Так и не понял какую используют для катушки проволку толщиной 0.5 мм??

[@josue19731000]

Ele troca a a bobina que está próxima ao trimmer capacitor variável de frequência!!

[@gabrielevangelista7025]

Qual o modelo do componente eletrônico azul o terceiro a ser adicionado?

[@danielsainz565]

Es un Preset Trimpot 20k.

[@DIY_Simple_Circuits]

Very nice video. What frequency counter are you using in this video?

[@inventorkr1]

88MHZ TO 108MHZ

[@DIY_Simple_Circuits]

@@inventorkr1 I meant what model is this? Or did you make this counter by yourself?

[@luiscarlosalvarezramos1293]

hola saludos desde planeta rica colombia... como es la formula para calcular las antenas gracias compadre

[@Tonicutis]

Para calcular un dipolo simplemente divides 150 entre la frecuencia, por ejemplo para 100 mhz sería 150/100 = 1.5 m o 150 cm eso sería media onda, luego cortas varillas de 75 cm cada una (75 x 2 = 150) y las pones separadas unos 3 cm en línea recta y a una va el vivo y a la otra la masa o tierra. Tendrás un bonito dipolo cuya eficiencia es sorprendente.

[@matthiaswilhelm9813]

Sehr schön aber in Germany strafbar!!!😂😂😂❤❤❤

[@inventorkr1]

Das Projekt dient der Bildung und ist nicht für den allgemeinen Gebrauch bestimmt

[@vetalveral8920]

What's a top range with external antena?

[@franciscoalencar-js2qv]

Colocar uma antena plano terra fica bom!!

[@Pogodica]

А сколько ватт выдает ваш передатчик в антенну? В диапазоне от 87 до 108 мегагерц?

[@alexakhmetov4616]

50-100 милливатт, может немного больше

[@josue19731000]

Variable Condenser 2.5-30PF onde encontrar?

[@HaydeTodo3]

es un error que en equipos de radio frecuencia de usen las terminales de los componentes tan largas.... deberian ser cortas y gruesas

[@haydarlab]

The diagram in the description is not for this circuit

[@worldmusic8941]

its not real.he put music on video.not from radio directly

[@XXXvy815]

Cewki jaką mają średnice wewnętrzną ?

[@inventorkr1]

5MM

[@XXXvy815]

@@inventorkr1 5MM, 5 zwojów a średnica drutu jaka ?

[@SurajYadav-o7f5t]

how to control range of FM

[@Ferreirapropagandas]

demais

[@Dadzie]

Wanna buy this

[@Lmika297]

có thể tự điều chỉnh tần số phát không?

[@ReganTelin-j7k]

How to order

[@antonschabenberger1659]

Schicken Sie mir einen schaltplan wenn es möglich ist. Danke

[@ivandariogallegorico9742]

Circuito plz

[@inventorkr1]

The circuit diagram is below the video in the description box

[@ReganTelin-j7k]

How to order sir

[@OngVoELstuffs08]

And if you touch the output it can burn your skin into charcoal and create an electrical arc on your skin

[@inventorkr1]

Dear friend, this is low energy, almost worthless

[@waik0182]

too exagerated

[@thekateep542]

cual es el voltaje que ocupa?

[@inventorkr1]

12 volts

[@NazarAli-kd5nc]

I need this transmitter....

[@ccschannal7641]

How can i conecte in a mic

[@TheRobertMars]

microphone or source of audio have the same way to connect

[@renatorabelo6873]

Legal, mas é o teste de distância 😢

[@lourivalcustodio977]

Me manda o esquema desse transmissor

[@josue19731000]

Ele não vai enviar, tem pessoas aí pedindo pra vender ele não vende , isso só funcionará na mão dele..pois ele troca uma bobina e também aparece na frente do sc2078 um novo elemento, quando ele regula a frequência com o frequencímetro - repare bem

[@Dj_-ys5it]

печатная плата на видео отличается от платы по ссылке из описания...

[@KingSAGRACEAigle]

Alors l'antenne ?

[@antonschabenberger1659]

Ich wollte einen schaltplan, habe noch keinen bekommen

[@ilijafilipovic9498]

a gdje je el. shema?

[@josue19731000]

Também gostaria de obte-lo ,numa parte do video aí pode notar que nas bobinas de fios uma é trocada , e também logo a frente do transístor SC2078 tem um outro elemento da para notar um conector preto na hora de regular a frequência aí no video que não foi mostrado no video na hora da soldagem!! Ta muito estranho isso mesmo !!@inventokr1

[@adanwarlog9356]

Una pregunta porfavor dónde se conecta para la antena porfavor gracias

[@djrkrahulchannel]

First Comment Pin Karna Bro

[@inventorkr1]

Thanks my friend, you are a good follower

[@rajshekharv.pandit6230]

You should have tested it by placing the receiver at least 500 meters away, if not 5 kilometers. ☹️☹️☹️😠😠😡

[@Edward-m5Edward__73p]

What's on the horizon? Exclusive interview with Binance's CEO reveals future insights

[@sergiosilva5840]

Estéreo 🤔?

[@Tv_man_2015]

✔️

[@Rider_bucin]

Saya bikin konten sepi terus😢 Walaupun sepi tetap semangat demi kalian semua 😅😊😘

[@inventorkr1]

Terimakasih temanku. Aku harap kamu berhasil. Komentar Anda adalah yang paling indah dan mendorong saya untuk mengirimkan lebih banyak proyek

[@elrabniy5549]

Diagram please

[@electechyt]

Doesn't anyone make proper through hole PCBs anymore ? These single sided top-soldered designs may be good for teaching beginners how to solder but not really good for a permanent device. Too easy for components with legs that are too long for RF work to be knocked over/disturbed causing shorts.

[@AuntDor-r1d]

Why you never break it down

[@dhanushkumar77]

Where is antenna 📡

[@810max810]

Ma dove è la connessione per una eventuale antenna?

[@Kellyaganze]

Sir How to use microphone ?

[@Suresh_Rajpoot]

10 km rege banao

[@Bartok_J]

How NOT to build a circuit for VHF. Leads should be as short as possible, components close to the board: not waving around almost a centimetre above it. All that extra inductance and capacitance is asking for failure. Please DON'T regard this video as an example of "good construction technique" - it's the exact opposite. :-(

[@montemazzucco2592]

è soltanto un trasmettitore , dovrebbe essere completato con la parte a bassa frequenza audio inclusa ...

[@enriquevillamizar4272]

Es bueno que lo haga. . .PERO ES QUE CREE QUE SOMOS MAGOS PARA ADIVINAR QUE ES LO WUE HACE. . .ESTA LOCO Y NO SABE.

[@ZaherKhaliqi]

plis add sircuit

[@mindblast3901]

VFO Drifter Fm transmitter Not a PLL FM Transmitter

[@arendelle_ok]

You right.. its only L and C oscillator

[@tecnithor]

Toy...😂

[@kanihancer2235]

Bundan istiyorum kaç lira very good transmitter

[@worldmusic8941]

its not real.he put music on video.not from radio directly

[@erdemtekin274]

No, don't talk ignorantly without knowing the real science.

[@mcpakaka9245]

ممكن مخطط الدائرة

[@prakashkamate4266]

Give daiogram

[@amirajarshi]

Only 5 meter range

[@antonschabenberger1659]

Der sender funktioniert nicht

[@WerlysRenovencit]

👻?👻

[@TechRockers-]

buy this product

[@berndg42]

Bei uns verboten!

[@janetwinslow2039]

5 km? OK...

[@JB-po3rb]

Verboten

[@antonschabenberger1659]

5km nein, 5m ja

[@СергейДавыскиба-ю9й]

Ну и зачем тогда он такой нужен

[@TechniCraftYT]

This looks terrible! I bet it spits out more unwanted frequencies than wanted! It also isnt encased in a metal box!