This FM Wireless Microphone project has good frequency stability and has range over 1 Km (under good conditions). This project features RF amplifier buffer (10dB gain), an AF preamplifier to boost the modulation and good microphone sensitivity. You can use it for guitars and remote control system.
This project quite simple to build. The two [...]
If you need need small and frequency stable FM transmitter for your application then you can try XFM1 transmitter. The XFM1 transmitter is 147.460 MHz crystal controlled tone modulated FM transmitter. The transmitter is tone modulated by a microcontroller PIC 12F675 approximately every two seconds. A Morse code call sign ID is transmitted approximately [...]
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