AVR beacon

AVR beacon project utilizes a new approach to RF signal generation using SQDDS method (making RF signals directly from the software, based on a pre-calculated periodic bit-sequence). It is mainly used by the hamradio operators to set up various radio beacons for different purposes, mostly for radio waves propagation discoveries.
CW (continious waves, Morze code) is a main modulation mode. Other modes like PSK and FSK are planned to implement in the future releases. User can enter any ASCII text to send it to the air. Transmission rates and modes are configurable from the input text. AVR beacon can read an external digital instruments like (voltmeter, thermometer, axelerometer, anemometer, etc.) and send its data to the air.
Beacons network is planned to implement using an external GPS module for time syncronization.
This project runs on Atmel AVR pico-power Mega microcontrollers: ATmega48p, ATmega88p, ATmega168p and ATmega368p. It is possible to port it to other AVR MCUs as well.