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Radio Frequency - Circuit Database

RF Remote Control with 3 Channels by PIC12F509

RF Remote Control with 3 Channels

An ultra small wireless transmitter TLP434 is being employed by the RF transmitter module with a frequency of 433.92 MHz. This is ideal for data transfers to a remote object and remote control projects.

40 MHz Wideband RF Amplifier

40 MHz Wideband RF Amplifier

The objective of the circuit is to design an amplifier that will be used under radio frequency range with a wideband frequency of 40 MHz.

Regenerative Receiver with Dual Polarity

Regenerative Receiver with Dual Polarity

The circuit has been designed to function as amplifier-detector to produce high quality of audio output through the external earphone.

Transmitter Detector for FM Bug Surveillance

Transmitter Detector for FM Bug Surveillance

The circuit was constructed using a few components that is powered by a 9 V battery for sensing the presence of bugs transmitting within the frequency modulation range.

High Selective Regenerative Shortwave Receiver

High Selective Regenerative Shortwave Reciever Diagram

The circuit was designed to create a portable and sensitive regenerative receiver that will be suitable for shortwave band listening.

Shortwave Radio Frequency Preamplifier

Shortwave Radio Frequency Preamplifier

The circuit was designed to increase or amplify the short wave reception of radio frequency having a range of 5 MHz to 20 MHz.

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