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 ...

One of our favorite purveyors of electronics knowledge is at it again. This time, [Afroman] explains how frequency modulation works while building up a short-range FM transmitter on a board he has ...

The diagram utilizes two BC548 transistors, more importantly descent results although not as good as RF transistors which provide high performance at wide bandwidth. It also utilizes electret ...

The Audemat FM Modulation Analyzer now features an RF generator to ease the task of commissioning and testing of FM transmitters. Thanks to this combination of features, the Modulation Analyzer, which ...

The heart of every radio transmitter is a reliable oscillator. Creating small, and tunable, oscillators that can maintain a precise frequency when conditions like temperature, pressure or humidity ...

Reader [Mike Y] responded to our “What are you working on?” post with his stereo FM transmitter project. If you’ve ever used an FM transmitter for your portable audio, you know that even the best ...

We have to admit that most FM transmitters for digital audio players offer pretty mediocre sound quality — especially in urban areas where the spectrum is crowded. That said, we could go for the VR3 ...

The average textbook definition of modulation reads: modulation is a process in which the frequency, phase or amplitude of a carrier wave varies in step with the instantaneous value of the modulating ...

Judging by Apple’s silhouette advertisements, you’d think the iPod was tethered only to slim youths devoted to dance. Not so. The world’s most popular go-anywhere music player is increasingly going ...

A device that adapts an MP3 player or other portable audio source to a car's audio system via the FM radio. It retransmits the analog output of the headset jack as one of several FM channels, which is ...