The FM modulator circuit (frequency modulation) is built with a Motorola MC1648P oscillator. Two varactors, Motorola MV-209 are used to frequency modulate the oscillator. The 5000 Ω potentiometer is ...

Compared to the simple diode needed to demodulate AM radio signals, the detector circuits used for FM are slightly more complicated. Wrapping your head around phase detectors, ratio detectors ...

A 7.5A fuse should be about right for an FM modulator, a Bluetooth dongle, and a Bosch relay coil. I rigged the fuse to the power circuit for these three devices.

FM is a popular modulation scheme used to transmit information on a high-frequency radio carrier by varying the carrier frequency. It’s still widely used today in both analog and digital formats.

A pair of Phase Modulation oscillators sits under the two main wavetable oscillators. For all intents and purposes, phase modulation synthesis equates to frequency modulation, meaning that Massive X ...

Let’s construct a low-power FM transmitter using surface-mount devices (SMD) that will be received with a standard FM radio. Soldering surface mounted devices is not so hard and actually is quite easy ...