FM Transmitter

[hotarola]

Hello,
This is my first topic, I really need your help. I've been working on a FM Transmitter. I've been simulating it on LTSpice using a wave fila as a input. My idea is use it with a 3.5mm jack.
The problem is, when I simulate it and do the FFT at the node on the bobine the frecuency is about 10kHz, and it should be around 100MHz.
Please if anyone can help me please say how to fix it. It's for college and I need the simulation OK before assemble it on a PCB.

Sorry for my english !

 

[alec_t]

Welcome to the forum.
Your oscillator doesn't oscillate continuously, according to LTspice. Search for 'colpitts oscillator' to see how it's usually configured.
BTW, we don't know which country you're in, but operating unauthorised radio transmitters is illegal, with heavy penalties, in many countries.

 

[audioguru]

You had many errors on your schematic that I fixed.
It will sound muffled on any FM radio because it is missing pre-emphasis.