[brmarcum] takes us back to analog building block basics with his Frequency Modulation and Demodulation tutorial. Frequency Modulation (FM) sounds simple at first, but understanding the electronics… ...

FM broadcasting is radio broadcasting using frequency modulation technology. In order to attain high-fidelity broadcast of music and speech, all audio frequencies up to 15kHz must be transmitted. The ...

Conventional FM transmitters lack DC response to the modulation input. Two point modulation is a solution to get around this problem and achieves dc response. In this method, both the VCO in the PLL ...