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28 mar 2012 · IC based FM Transmitter – Instead of two transistor stage transmitter as we saw above, here we use an IC – UPC1651 (wideband UHF MMIC amplifier). The use of IC makes possible easy wiring and assembling of the circuit.
7 lip 2010 · The figure below shows the schematic of the transmitter which consists of two stages: an oscillator and an output amplifier. Modulation is from an electret microphone but you can use a low power audio source. FM Bug Transmitter. Take a look at this fm spy transmitter which can be used as a bug transmitter or as fm bug too.
26 cze 2008 · This mosfet fm transmitter circuit is designed to be used for aligning FM radio receivers. It has a microphone amplifier with automatic gain control. The FM modulation is a voltage oscillator and the final stage is built with MOSFETs.
This 15W FM transmitter use power transistor BLY88C as the main transmitter amplifier. Building a good FM transmitter (88-110Mhz) begins with getting a good schematic. You don’t have to understand the precise working of the transmitter to build it. But some basic information won’t harm.
Turn your PC (monitor) into an AM radio transmitter. Only works in Linux, but you can actually play an MP3 on your PC and hear it on radio without any extra hardware!! PC FM transmitter card for your PC. Insert this into your PC (PCI slot) and turn your PC into a local radio station.
6 maj 2018 · The proposed circuit is a straightforward to construct 5 km range FM Transmitter. It includes 3 blocks; modulator / oscillator, 2 stage 500mW VHF amplifier and LED based power meter. The circuit enables transmiting music signals to FM band with frequencies from 88 MHz to 108 MHz.
27 mar 2015 · Here is the schematic for the FM transmitter we are going to build: How the FM Transmitter Works. The circuit is powered by a 9V power supply. Transistor Q1 is a high gain audio amplifier that amplifies the sound detected by the electret microphone.
