These are some hardware news, schematics and pics
(click on the pics to enlarge)
This is the NE555 astable oscillator
NE555 astable oscillator schematic
This is the screen I obtained with a
quite large integrator filter after the square wave oscillator 
Some pictures of the beacon
Xtal oscillator schematic (Thanks to
Colin G6AVK and Peter DL6NL)
click to enlarge the picture
Frequency 10.140.080 MHz
Schematic of present beacon
TX
