THE  22 METER BEACON OPERATES ON 13.5547MHZ.THE TRANSMITTER HAS A POWER OUTPUT OF 4 MILLIWATTS RF. THE TRANSMITTER CONSISTS OF A SG8002 PROGRAMABLE TIME BASE OSCILLATOR. THE OUTPUT IS FED TO A BANDPASS FILTER AND THEN INTO A 100 OHM VARIABLE RESISTOR WITH THE CENTER TAP GOING TO THE ANTENNA. THE 100 OHM RESISTOR IS USED TO ADJUST THE POWER OUTPUT TO THE LEGAL LIMIT. KEYING IS DONE THROUGH THE USE OF A ARDUINO NANO THAT IS PROGRAMMED WITH THE CALL SIGN. A THERMISTOR IS ATTACHED TO THE TOP OF THE TIME BASE OSCILLATOR TO HELP KEEP THE TEMPERATURE CONSTANT TO PREVENT FREQUENCY DRIFT.

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