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Radio circuit diagrams electronics projects

Radio circuit diagrams electronics projects for radio transmitter, radio receiver circuit, rf amplifiers, rf boosters and some other related RF circuits like: fm antenna booster, microwave transmitter and wireless modules.

Radio remote transmitter circuit diagram

This radio remote transmitter circuit works in UHF-FM radio band and can be used for shareholders different systems like garage doors, alarm systems, etc..

Circuit Diagram: 
Radio remote transmitter circuit diagram

UHF amplifier circuit

Using electronic diagram below can be design a UHF amplifier circuit useful in situations where the TV signal is weak. The UHF amplifier circuit has a gain of 10-15 dB in a frequency range between 400 and 850 MHz.
To obtain optimum performance and good reliability, the PCB tracks should be covered with tin.
At each disc capacitors C4, C5, C8 and C9, by one of the girls is glued directly on board.
All other terminals are to be cut as short as possible and will use SMD components.

Circuit Diagram: 
UHF amplifier circuit diagram

Antenna selector circuit using cmos

This antenna selector circuit allows switching between two FM antennas via a logic signal.

Circuit Diagram: 
Antenna selector circuit project using cmos

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