micro7311
Junior Member level 2

Hi, I am looking for some input on a FM transmitter I am trying to simulate in LT Spice. I am simply just trying to modulate an input sine wave with a carrier frequency. My circuit is attached with the simulation results, as well as the oscillator simulation with the input sine wave removed. I don't have any specific design requirements as of yet, I am just trying to simulate a simple modulation circuit. I am trying to achieve ASK with this, and the output waveform does not look correct (Also the simulation stops oscillating soon after I start the simulation).
Any suggestions for improvement are welcome, thank you.
Any suggestions for improvement are welcome, thank you.