FM Transmitter with Wireless Feature

The wireless FM transmitter project enables a user to speak into the transmitter using a microphone where the voice can be heard on any FM radio within 25ft.

Regenerative FM Receiver Using One Transistor

The VHF super regenerative receiver has been trimmed down to a single transistor without compromising its tremendous sensitivity and selectivity while maintaining the same clear audio.

Hamtronics USB Computer Control

The project illustrates the use of USB connection which is a more convenient way to interface to a computer for the Hamtronics receiver.

Complete WLAN Solution for AVR and CPU

The project illustrates the use of Atmel AVR microcontroller based system with a Prism WLAN interface.

Transceiver Circuit with SSB 75 Meter

The circuit has been designed to produce a transceiver that switches the 4-element 1500 Ohm external BPF ends between the inputs and outputs of the two SA602s to reverse the signal flow for R/T operation.

VHF Receiver Using Single Chip

The project was based on the KA22429 that is equivalent to a TDA7021 to create a small and cheap FM receiver.