The purpose of this 1.5V FM broadcast transmitter circuit is to provide a simple, appliance-like low-power transmitter to rebroadcast audio. It can be used to rebroadcast the output of a CD player, television receiver, or radio receiver. This transmitter does not have pre-emphesies, so it is not high-fidelity. It has sort of an “AM” sound […]
If you want enjoy and share your favorite music, you can connect your iPod, MP3 or CD player to some kind of FM transmitter. The transmitting signal then can be picked up by any FM radio receiver, most often used in cars. The problem with most FM transmitter is that they have very weak signal […]
This project can transmits phone conversation up to 30 metres (100 feet) to an ordinary FM receiver. You can experiment to get greater transmission range away from the phone line by adding an aerial (about 150 cm of 26 gauge wire) to the collector of T2 (see circuit below). To use phone transmitter, you need […]
This easy to build PLL FM transmitter can deliver RF power output typically of 5 Watt. The project uses PIC16F627A to control PLL IC TSA5511 during FM Tuning process. PLL in-lock state status is displayed on LCD or you can check it on LED indicator (when LCD not connected).
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