Crystal controlled FM Transmitter
Circuits DIY Tools Transmitter VHF/UHF

Build Your Own 90MHz Crystal Controlled FM Transmitter

A crystal controlled FM transmitter is a radio frequency (RF) circuit that uses a quartz crystal oscillator to generate a stable, precise frequency for FM radio transmission. Unlike simple LC oscillator circuits, crystal-controlled transmitters offer superior frequency stability and accuracy, making them ideal for applications requiring consistent performance.

HydraSDR_RFOne
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HydraSDR RFOne: A Technical Overview and Comparison with Airspy R2

The Software Defined Radio (SDR) landscape has recently been joined by the HydraSDR RFOne, a new receiver sparking interest among amateur radio and SDR enthusiasts. Developed by Benjamin Vernoux, previously involved with the Airspy R2 project, the HydraSDR shares foundational design elements with the well-known Airspy R2. Its creator highlights “Enhanced PCB layout and RF […]