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4W PLL FM Transmitter
Posted on Tuesday, October 5, 2010   •   Category: FM Transmitters

4W PLL FM Transmitter

The PLL transmitter exciter has the functions of providing a stable, low noise, frequency-selectable RF signal and amplify it to a controllable output power sufficient to drive the power amplifier. It uses a PLL frequency synthesizer built with MC145151, which covers the FM band in 100kHz steps. The VCO covers only a few MHz without readjustment.

     1 Watt Universal RF Amplifier
     Stereo FM Transmitter
     3W FM Transmitter Amplifier
     1.5 Watt FM Transmitter
     MC145170 PLL FM Transmitter
     Low Pass Filter For FM 88-108 MHz
     30W Digital Wattmeter for RF (0-500MHz)
     Coilless FM Transmitter
     4km FM Transmitter
     Stereo FM Transmitter With BA1404 IC
4W PLL FM Transmitter

 

Build Accurate LC Meter and start making your own coils and inductors. This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils. LC Meter can measure inductances starting from 10nH - 1000nH, 1uH - 1000uH, 1mH - 100mH and capacitances from 0.1pF up to 900nF. The circuit includes an auto ranging and reset function to make sure the readings are as accurate as possible ... [more]



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