fm transmitter circuits
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FM Module with USB Function
Dec 29th
The FM module with USB function of Vire Silicon.Co Ltd is an excellent miniature FM module with USB input and digital display for functions. It is available as assembled board with remote.
D.Mohan kumar
The VIRE-FM 01C FM –USB Module is available as ready made assembled board. Its output can be connected to power amplifier or into the amplifier of VCD player, Car stereo etc. The module has the following important features (more…)
MAX2606 VHF FM Transmitter
Dec 27th
If you want to be independent of the local radio stations for testing VHF receivers, you need a frequency-modulated oscillator that covers the range of 89.5 to 108 MHz — but building such an oscillator using discrete components is not that easy. Maxim now has available a series of five integrated oscillator building blocks in the MAX260x series which cover the frequency range between 45 and 650 MHz. The only other thing you need is a suitable external coil, dimensioned for the midrange frequency. (more…)
UUS 65 – 73 MHz fm transmitter
Oct 27th
A basic UUS 65 73 MHz fm transmitter circuit schematic which can be used as UUS oscillator with no explanation … 65 – 73 MHz transmitter ( oscillator ) circuit components: (more…)
Veronica 1W Fm transmitter
Oct 16th
Veronica 1W FM transmitter is easy to build and to operate in FM. Veronica is also known for frequency stability, clean fm signal and uses no integrated circuit. You may want to check this another 1W FM transmitter circuit. Veronica transmitter is equiped with a mini-mixer and so you may forget an external mixer. This consist from T1 transistor wich amplifies the microphone signal before it is combined with cd-player audio or pc signal. R1 and R2 are potentiometers ( variable resistors ) used to adjust the audio level. (more…)
Foxhunt transmitter
Oct 9th
This 2 meter 144 MHz fox hunt transmitter is used in amateur competitions where a hidden transmitter is to be “hunted” using mostly homebrewed receivers and antennas. The foxhunt electronic circuit is the transmitter. It radiates a high quality signal without unwanted harmonics. Transistor T1 and the crystal togheter make the oscillator that generates a 36MHz signal. (more…)
88 108 MHz FM transmitter BF982 BF199 BFR90
Oct 7th
The most important part of this 88-108 transmitter is the Colpitts oscillator. C3,C4,C5,C6,CD1-CD2 ans L1 determine the transmission frequency. The RF Oscillator circuit has the BF982 MosFet transistor wich is the active part. The others 2 transistors separate the VCO from antenna. (more…)
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