100 Watt Fm Amplifier Kit Build 87-108 MHz ( Using 1 Watt Drive )

100 Watt Fm Amplifier Kit Build ( Update can do 120 Watts )

Using the PLL 1 watt transmitter to drive.

Welcome back to another Kit build this time an Amplifier. I’ve not had much experience with these but all built up ok and worked fine.. considering I’m not an RF engineer not a bad job.

NOTE :
The one thing that I learnt after the making of this video is the adjustment of the Bias, It needs to be set to 2.6Volts. This is done once the PCB is built and powered with your 48volts, without the MRF101 installed. Will show it on the next video before it all goes into a box... hopefully once that is done we should see 120 watts of power...

These are great kits to build and are still available on e bay... Very good value for money.

FM BROADCAST PLL EXCITER TRANSMITTER 1 WATT 87.5 - 108.5 Mhz KIT

E bay item no : sold out

FM Broadcast Power Amplifier 100 Watt KIT

E bay item no : SOLD OUT 4/1/21

Hope you enjoy the video, happy building.
Don’t forget to like & subscribe

Remember in the UK you need a license to Broadcast, No Broadcasting laws was broken in the making of this video, A dummy load was used..

A bit of Music was changed to a copyright clam. Even after I made sure that i did not you copyrighted music. you will know where it is because the music goes loud. What a shame

Thanks for watching
Aron102

[stevebalstone]

Incredible gain from that MRF101. and unusual to see a vhf amplifier transistor in a TO220 package

[billryland]

You need to look at the output with a spectrum analyzer to check for harmonics and spurious frequencies. Chinese kits like that are notorious for that.

[PDRPO]

Hello, Nice video, i had the power amp to, can you Fins the bias settings on the EBay site?
I don’t know how to tune and where do you measure it ?

[peterc]

Greetings! I am aware that this video was posted quite long ago, but if by any chance you still have the schematic for this particular model RF Amplifier somewhere could you send it my way if i ask nicely? If not, i'd also greatly appreciate a similar model's schematic, i found this type of design quite neat, so if i could get a schematic of this sort i might be able to try to build it at home from custom parts because as far as i am aware this kit is no longer available. Thank you for your time, and have a nice day!

[franciscogoncalvesbastosju]

good job, would the MRF101AN give to use in the scheme of blf177? adjusting the polarization to 2.6v would it work?

[freakydayz]

Hey this is really cool I also love rigs, I was wondering if I could send you 1 I made and you can test it. Maybe mach it up to a rf amp I've always had trouble with rf amps. I've never had anyone to help me.

[mattdalby]

Hi, great build vids Aron102. Are these kits in mono or mpx?

[geeuk]

Hi Mate, Currently Building this project, how do i about adjusting the bias to 2.6v, I do recall the info on enigma saying adjust the bias to 120ma current (100ma for mrf101an and 20ma for the led). Can you help me on how to adjust the bias. I have not purchased the mrf101an yet you think i should just get the mrf300an and push 200w? Is it stable with the current circuit?

[carlosavelinopeixoto]

Hi,

Its possible change the mrf101an to mrf300an only ajusting the bias!?

[galaxynote]

Where did you get the heatsink? Or what are the measurements of the circuit board and heatsink? Thank you....

[nsy]

where to buy kit i need this one for a community radio

[allanjaypalomique]

Gud day to you sir i just want to ask wer u bought that 100watter fm transmitter kit???

[kimtongkh]

can i get the link to buy this kit package please ?

[paulopareja]

Is this available?how can i avail and how much?

[paulopareja]

is your 100watts fm amplifier kit available?i'll buy it, and how much?

[allanjaypalomique]

SPECIALLY SIR DO YOU HAVE A SCHEMATIC-DIAGRAM OF THIS TRANSMITTER???

[allanjaypalomique]

dear sir, can i buy a mrf101an pcb kit on you sir?

[sw]

Unfortunately all of the links you have posted up to eBay items are dead. Once the auction closes or the items are removed, the links don't work.

[TheGmr]

cool thanks for posting this, i will look into this. be nice to have a 100watt fm amp. check my channel for more radio fun. nice videos.

[good_night_rf]

It c1971 or rd15hvf1. Only 15w RF output. 100w lie, 🤗