i made another sensor to see what happens... and it has the same problem. when i touch the antenna the output voltage does not drop or rise it is stable... i use BC548c.. i used that antenna i have and the sensor output voltage is always 0volt without crystal.. with crystal it is 5.44volt with only one capacitor c2(1pf) .if i remove c2 the output voltage is 4v if i remember correctly... that way the output voltage drops when i touch the antenna..
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