good evening Mr. Franco.and to everyone. i made the 7812 circuit .. but i used 5 batteries (18650). because i had her.the sensor now has c9(680pf),c13(680pf),c14(680pf) and c2(2 capacitors in series (2.2pf)....output voltage without crystal is 0v with copper antenna. .....and with 40 cm flexible cable again 0 volts and when the antenna turns the output voltage is again 0 volts. the output voltage with crystal is 5.49 volts when I touch the antenna the voltage does not change it stays the same. in the garden test it catches the signal it was getting from a longer distance. but close to the house it is getting other signals I don't know for sure it is getting it... when I can I will also go to the field to test and let you know what it did..
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